DOWNLOAD PDF Land Rover 2.0L I4 GTDi Engine Management System ON BOARD DIAGNOSTIC Manual

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION 2.0L I4 GTDi Engine Management System

Vehicle Coverage: Range Rover Evoque & Land Rover Freelander 2014 MY 2.0 GTDi Engine

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 1 of 173

CONTENTS Section Title 1.

Page

Engine started and running ..................................................................................................................................... 7 Engine Start – System Flowchart ............................................................................................................................ 7 2.

Catalyst Monitoring ................................................................................................................................................. 8 2.1.

Fault Codes............................................................................................................................................................. 8 2.2.

System Overview .................................................................................................................................................... 8 2.2.1.

Two Sensor Systems .............................................................................................................................................. 8 2.2.1.

Three Sensor Systems............................................................................................................................................ 9 2.3.

Strategy Description ................................................................................................................................................ 9 2.3.1.

Oxygen Storage Capacity (OSC) and catalyst efficiency evaluation ....................................................................... 9 2.3.2.

Diagnosis constraints .............................................................................................................................................. 10 2.3.3.

Failure Criterion ...................................................................................................................................................... 10 2.4.

Catalyst Monitor Diagnosis – System Flowchart and Tables .................................................................................. 11 2.5.

Drive Cycle Information ........................................................................................................................................... 13 3.

Misfire Monitoring .................................................................................................................................................... 14 3.1.

Fault Codes............................................................................................................................................................. 14 3.2.

System Overview .................................................................................................................................................... 14 3.3.

Strategy Description ................................................................................................................................................ 16 3.3.1.

Introduction ............................................................................................................................................................. 16 3.3.2.

Recording segment time and position, and its manipulation ................................................................................... 16 3.3.3.

Adjustment of crank angle tolerance/engine roughness values .............................................................................. 16 3.3.4.

Storing adaption values in back-up memory ........................................................................................................... 17 3.3.5.

Misfire 'signal' calculation and misfire judgement .................................................................................................... 18 3.3.6.

Catalyst damage judgement ................................................................................................................................... 21 3.3.7.

Excess emissions judgement .................................................................................................................................. 22 3.3.8.

Monitor execution check ......................................................................................................................................... 22 3.3.9.

Rough road ............................................................................................................................................................. 22 3.4.

Misfire Monitor – System Flowchart and Tables ..................................................................................................... 23 4.

Evaporative System Monitoring .............................................................................................................................. 25 4.1.

System Schematic .................................................................................................................................................. 25 4.2.

System Description ................................................................................................................................................. 26 4.3.

Fault Conditions That Can Be Identified.................................................................................................................. 27 4.4.

Fault Determination ................................................................................................................................................. 28 4.4.1.

Reference Leak Measurement ................................................................................................................................ 28 4.4.2.

Tank Measurement ................................................................................................................................................. 29 Range Rover Evoque & Land Rover Freelander JLR 19 39 18_1E Jaguar Land Rover Limited Page 2 of 173 1.1.

4.4.3.

4.4.3.1.

4.4.3.2.

4.4.3.3.

4.4.3.4.

4.5.

4.6.

4.7.

Fault Assessment ................................................................................................................................................... 30 Small Leak / Rough Leak (> 0.040 inch) ................................................................................................................. 30 Very Small Leak (0.020 inch) .................................................................................................................................. 31 Fuel Cap Warning Message .................................................................................................................................... 32 Filler Cap Removal and Re-Fueling ........................................................................................................................ 32 Evaporative System Monitoring – System Flowchart and Tables ........................................................................... 33 Diagnosis Frequency and MIL Illumination ............................................................................................................. 36 Drive Cycle Information ........................................................................................................................................... 36 5.

Purge Valve Monitoring ........................................................................................................................................... 38 5.1.

System Schematic .................................................................................................................................................. 38 5.2.

System Description ................................................................................................................................................. 38 5.3.

Fault Conditions That Can Be Identified.................................................................................................................. 39 5.4.

Fault Determination ................................................................................................................................................. 39 5.4.1.

Reference Leak Measurement ................................................................................................................................ 39 5.4.2.

Purge System Measurement ................................................................................................................................... 39 5.4.3.

Fault Assessment ................................................................................................................................................... 40 5.4.3.1.

CPV stuck open ...................................................................................................................................................... 40 5.4.3.2.

CPV stuck closed or purge lines are blocked .......................................................................................................... 40 5.4.3.3.

Flow performance / disconnected ........................................................................................................................... 40 5.5.

Purge Flow Monitoring – System Flowchart and Tables ......................................................................................... 41 6.

Fuel System Monitoring .......................................................................................................................................... 46 6.1.

Fault Conditions That Can Be Identified.................................................................................................................. 46 6.2.

Fuel System Monitor – System Description ............................................................................................................ 46 6.3.

Fuel System Monitoring – System Flowchart and Tables ....................................................................................... 49 7.

UHEGO Sensor Monitoring ..................................................................................................................................... 60 7.1.

Fault Codes............................................................................................................................................................. 60 7.2.

System Overview .................................................................................................................................................... 60 7.3.

‘UHEGO Sensor Ready’ Conditions ........................................................................................................................ 60 7.4.

Sensor Heater Control ............................................................................................................................................ 60 7.4.1.

Valid sensor resistance has been measured .......................................................................................................... 61 7.4.2.

Dew point assessment ............................................................................................................................................ 61 7.5.

Heater Diagnostics .................................................................................................................................................. 62 7.5.1.

Heater Powerstage/control circuit analysis (P0606) ................................................................................................ 62 7.5.2.

Heater Control Diagnosis (P00D1 and P0135) - Two Sensor Systems .................................................................. 62 7.5.3.

Heater Control Diagnosis (P00D1) – Three Sensor Systems ................................................................................. 62 7.5.4.

Heater Influence on Nernst Cell (P2231) ................................................................................................................ 63 7.6.

Signal Diagnostics .................................................................................................................................................. 63 7.6.1.

Integrated Circuit (IC) Electrical monitoring............................................................................................................. 63 Range Rover Evoque & Land Rover Freelander JLR 19 39 18_1E Jaguar Land Rover Limited Page 3 of 173

UHEGO Signal Diagnostics – System Flowchart .................................................................................................... 65 Sensor Dynamics .................................................................................................................................................... 66 Voltage diagnosis P0134 ........................................................................................................................................ 66 Sensor response P0133.......................................................................................................................................... 66 UHEGO Sensor Dynamics – System Flowchart and Tables ................................................................................... 68 Drive Cycle Information ........................................................................................................................................... 74 8.

HEGO Sensor Monitoring – Two Sensor Systems .................................................................................................. 75 8.1.

Fault Codes............................................................................................................................................................. 75 8.2.

System Overview .................................................................................................................................................... 75 8.3.

‘HEGO Sensor Ready’ Conditions .......................................................................................................................... 75 8.4.

Sensor Heater Control ............................................................................................................................................ 76 8.5.

Heater Diagnostics .................................................................................................................................................. 76 8.5.1.

Heater power stage monitoring P0036, P0037 and P0038 ..................................................................................... 76 8.5.2.

Heater monitoring P0054 ........................................................................................................................................ 76 8.5.3.

HEGO Heater Monitor – System Flowchart ............................................................................................................ 77 8.6.

Signal Diagnostics .................................................................................................................................................. 78 8.6.1.

Electrical monitoring ................................................................................................................................................ 78 8.6.2.

HEGO Electrical Monitoring – System Flowchart .................................................................................................... 79 8.6.3.

Sensor dynamics .................................................................................................................................................... 80 8.6.3.1.

Transient response P013A...................................................................................................................................... 80 8.6.3.2.

Delayed response P013E. ...................................................................................................................................... 80 8.6.3.3.

HEGO Sensor Dynamics – System Flowchart ........................................................................................................ 81 8.6.3.4.

Ageing Monitor – sensor stuck P0140..................................................................................................................... 82 8.6.3.5.

Ageing Monitor – sensor not responding P0139 ..................................................................................................... 82 8.6.3.6.

HEGO Sensor Dynamics – System Flowchart and Tables ..................................................................................... 83 8.7.

Drive Cycle Information ........................................................................................................................................... 90 9.

HEGO (LSF AND LSH) Sensor Monitoring – Three Sensor Systems ..................................................................... 91 9.1.

Fault Codes............................................................................................................................................................. 91 9.2.

System Overview .................................................................................................................................................... 91 9.3.

‘HEGO Sensor Ready’ Conditions .......................................................................................................................... 92 9.4.

Sensor Heater Control ............................................................................................................................................ 92 9.5.

Heater Diagnostics .................................................................................................................................................. 92 9.5.1.

Heater power stage monitoring ............................................................................................................................... 92 9.5.2.

Heater monitoring ................................................................................................................................................... 92 9.5.3.

HEGO Heater Monitor – System Flowchart ............................................................................................................ 93 9.6.

Signal Diagnostics .................................................................................................................................................. 94 9.6.1.

Electrical monitoring ................................................................................................................................................ 94 9.6.2.

HEGO Sensor dynamics ......................................................................................................................................... 94 Range Rover Evoque & Land Rover Freelander JLR 19 39 18_1E Jaguar Land Rover Limited Page 4 of 173 7.6.2.

7.6.3.

7.6.3.1.

7.6.3.2.

7.6.4.

7.7.

9.6.2.1.

Transient response ................................................................................................................................................. 95 9.6.2.2.

Delayed response. .................................................................................................................................................. 95 9.6.2.3.

Range or signal stuck.............................................................................................................................................. 95 9.6.2.4.

Delayed Response – System Flowchart ................................................................................................................. 96 9.6.2.5.

Transient response – System Flowchart ................................................................................................................ 97 9.6.2.6.

Range or Signal Stuck – System Flowchart and Tables ......................................................................................... 98 9.7.

Drive Cycle Information ........................................................................................................................................... 105 10.

Individual Cylinder AFR Monitor .............................................................................................................................. 106 10.1.

Fault Conditions That Can Be Identified.................................................................................................................. 106 10.2.

System Description ................................................................................................................................................. 106 10.3.

Fault Decision ......................................................................................................................................................... 106 10.4.

Individual Cylinder AFR Monitor – System Flowchart and Tables ........................................................................... 107 11.

Engine Cooling System - Thermostat Monitoring - P0128 ...................................................................................... 109 11.1.

System Schematic .................................................................................................................................................. 109 11.2.

Typical Time to Detection for a failed Thermostat during Normal Driving ............................................................... 110 11.3.

Thermostat Monitoring – System Flowchart and Tables ......................................................................................... 111 12.

Comprehensive Component Monitoring .................................................................................................................. 113 12.1.

Intake Air Temperature Sensor Monitor .................................................................................................................. 113 12.1.1.

TMAP / TFA1 (Pre-Throttle) Intake Air Temperature Sensor Monitor ..................................................................... 113 12.1.1.1.

Fault Conditions That Can Be Identified.................................................................................................................. 113 12.1.1.2.

Electrical Monitor (P007D, P007C and P007A) ....................................................................................................... 113 12.1.1.3.

Rationality Monitor (High/Stuck P007B) .................................................................................................................. 113 12.1.1.4.

Cold Start Monitor (P011C) ..................................................................................................................................... 114 12.1.1.5.

TFA1 Monitoring – System Flowchart and Tables .................................................................................................. 115 12.1.2.

TMAF / TFA2 (Post air filter) Intake Air Temperature Sensor Monitor .................................................................... 119 12.1.2.1.

Fault Conditions That Can Be Identified.................................................................................................................. 119 12.1.2.2.

Electrical Monitor (P0113, P0112 and P0110) ........................................................................................................ 119 12.1.2.3.

Rationality Monitor (P0111)..................................................................................................................................... 119 12.1.2.4.

Cold Start Monitor (P00CE) .................................................................................................................................... 119 12.1.2.5.

TFA2 Monitoring – System Flowchart and Table .................................................................................................... 120 12.2.

MAF - Air Flow Monitor ........................................................................................................................................... 122 12.2.1.

Fault Conditions That Can Be Identified.................................................................................................................. 122 12.2.2.

Range Check (P0103 / P0102) ............................................................................................................................... 122 12.2.3.

Signal Check (P0100) ............................................................................................................................................. 122 12.2.4.

Rationality Monitor (P0101)..................................................................................................................................... 122 12.2.5.

MAF Monitoring – System Flowchart and Table ..................................................................................................... 123 12.3.

MAP Pressure Monitor ............................................................................................................................................ 125 12.3.1.

Fault Conditions That Can Be Identified.................................................................................................................. 125 Range Rover Evoque & Land Rover Freelander JLR 19 39 18_1E Jaguar Land Rover Limited Page 5 of 173

12.3.2.

12.3.3.

12.3.4.

12.4.

12.4.1.

12.4.2.

12.4.3.

12.4.4.

12.4.5.

12.5.

12.5.1.

12.5.2.

12.5.3.

12.5.4.

13.

13.1.

13.2.

13.3.

13.4.

13.5.

13.6.

13.7.

13.8.

13.9.

13.10.

13.11.

13.12.

13.13.

14.

14.1.

14.2.

14.3.

14.3.1.

14.3.2.

14.4.

14.5.

14.6.

Electrical Monitor (P0108/P0107) ........................................................................................................................... 125 Range Check, Rationality and Signal Monitor (P0106) ........................................................................................... 125 MAP Monitoring – System Flowchart and Tables ................................................................................................... 126 Coolant Temperature Sensor Monitor ..................................................................................................................... 129 Fault Conditions That Can Be Identified.................................................................................................................. 129 Electrical Monitor (P0118/P0117) ........................................................................................................................... 129 Rationality Monitor (P0116)..................................................................................................................................... 129 Cold Start Monitor (P011B) ..................................................................................................................................... 129 Coolant Sensor Monitor – System Flowchart and Tables ....................................................................................... 130 Radiator Out Temperature Sensor Monitor ............................................................................................................. 133 Fault Conditions That Can Be Identified.................................................................................................................. 133 Range Monitor (P2185, P2184) .............................................................................................................................. 133 Rationality Monitor (P2183)..................................................................................................................................... 133 Radiator Out Temperature Sensor Monitor – System Flowchart and Table ............................................................ 135 Additional tables ...................................................................................................................................................... 137 Cold Start Emission Reduction Strategy Performance Tables ................................................................................ 137 Barometric Pressure Sensor Monitoring Table ....................................................................................................... 141 Cam and Crankshaft Sensor Monitoring Tables ..................................................................................................... 142 Variable Valve Timing Monitoring Tables ................................................................................................................ 146 Idle Speed Control Monitoring Table ....................................................................................................................... 150 Wastegate Monitoring Table ................................................................................................................................... 151 Oil Temperature Sensor Monitoring Table .............................................................................................................. 152 Ambient Temperature Sensor Monitoring Tables .................................................................................................... 153 Knock Sensor Monitoring Table .............................................................................................................................. 154 Throttle Monitoring Tables ...................................................................................................................................... 155 ECM Monitoring Tables........................................................................................................................................... 158 Vehicle Speed Determination Monitoring Table ...................................................................................................... 159 Network Management Monitoring Tables................................................................................................................ 160 Additional Information ............................................................................................................................................. 162 Diagnostic Test Mode Compliance ......................................................................................................................... 162 Stored Engine Conditions - Mode$02 ..................................................................................................................... 162 Inspection and Maintenance Test Readiness Setting ............................................................................................. 163 Introduction ............................................................................................................................................................. 163 Readiness Setting ................................................................................................................................................... 163 Communication of Monitor Test Results - Mode$06 ............................................................................................... 165 Drawing and Location of the Malfunction Indicator Light ......................................................................................... 170 Location of the Data Link Connector ....................................................................................................................... 172

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Page 6 of 173

1.

Engine started and running The engine is classified as cranking if the engine speed is greater than 20 rpm. An engine running condition is determined if the engine speed exceeds a coolant temperature based threshold and does not fall below an intake air temperature based threshold.

1.1.

Engine Start – System Flowchart

Engine speed

nmot

nmot> 20 rpm

Yes Engine Cranking

Engine Temp

degC -30 0 20 45 60 75 rpm 880 760 680 680 680 680

nmot > RPM_Start

RPM_Start

yes

Air Temp

degC -30 rpm 160

30 40

75 40

nmot< RPM_Stall

RPM_Stall

No

Yes Stall

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Page 7 of 173

2.

Catalyst Monitoring

2.1.

Fault Codes P0420 - Catalyst System Efficiency Below Threshold (Bank 1)

2.2.

System Overview The Bosch ME17 EMS provides stoichiometric homogenous fueling with a Pt/Ph/Rh three way catalytic convertor (TWC) to achieve the legislated HC, CO and NOx emission control. Dependent upon tailpipe emission compliance standards either 2 sensor or 3 sensor systems are employed.

2.2.1. Two Sensor Systems

LSU UHEGO Sensor 1

LSF HEGO 1 Sensor 2

Front Catalyst Brick

Rear Catalyst Brick

GAS IN

GAS OUT

LEV II ULEV. A wide band UHEGO sensor mounted upstream (engine side) of the catalyst provides primary fueling control whilst a ‘mid brick’ HEGO is used for fuel ‘trim’ and catalyst diagnostic capabilities.

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2.2.1. Three Sensor Systems LEV III SULEV30. This system consists of a front and rear split catalysts with three sensors. Sensor 1 is a wide band UHEGO LSU sensor and is mounted upstream (engine side) of the front catalyst providing primary fueling control. The second (LSF) and third (LSH) sensors are binary HEGO sensors, the LSF being located between the pre and main catalysts with the LSH downstream of the main catalyst. The HEGO sensors are used to provide secondary fueling control to ensure efficient catalyst operation with the LSF sensor being used to monitor catalyst efficiency. Sensor and bank references are as follows, LSU sensor 1, LSF - sensor 2 and LSH - sensor 3. Bank references are 1 and 2. For example 1, sensor 2 bank 1 refers to the LSF on bank 1 and sensor 1 bank 2 is the LSU sensor bank 2.

LSU UHEGO Sensor 1

LSF HEGO 1 Sensor 2

Front Catalyst Brick

LSH HEGO 2 Sensor 3

Rear Catalyst Brick

GAS IN

2.3.

GAS OUT

Strategy Description 2.3.1. Oxygen Storage Capacity (OSC) and catalyst efficiency evaluation Legislation requires that if catalyst efficiency has dropped below 50% or exceeds OBD emission limits then a system fault must be diagnosed and declared. Catalytic conversion is dependent upon free oxygen in the catalyst and catalyst efficiency is determined through OSC assessment. This is achieved by actively removing the oxygen content in the catalyst (by using UHEGO controlled rich fuelling) and then introducing a known oxygen volume (UHEGO controlled lean fuelling) and observing HEGO activity. Differing OSC will give different HEGO activity, the analysis of which is used to determine catalyst condition.

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2.3.2. Diagnosis constraints The monitor operates once per drive cycle. The efficiency analysis will only take place once the catalyst has reached acceptable operational conditions. Other conditions are used to ensure that steady state conditions are satisfied to avoid transient mass flow or temperature influences. Analysis can only take place if other system fault conditions are compatible. The conditions required for consistent analysis are outlined in 2.4. The diagnosis will not begin until these conditions are met and the diagnosis will suspend if the conditions are exited. If these conditions are met again then the diagnosis will continue, but if several diagnosis attempts are made without satisfactorily being completed or a time limit exceeded then the analysis is reset. A full diagnosis is made once per trip and the results stored for In Use Monitor Performance Ratio (IUMPR) reporting.

2.3.3. Failure Criterion The rich to lean HEGO response is averaged over a number of rich lean shifts to determine the final OSC. The final OSC is then compared to a failure threshold and a pass or fail judgment made. This failure threshold is determined from a catalyst whose OSC is just sufficient enough to provide catalytic conversion that meets the legislative requirement. Two major factors that influence OSC are catalyst temperature and exhaust mass flow and the failure threshold is adjusted for these, allowing the HEGO analysis to provide consistent, repeatable analysis across all its operational ranges.

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2.4.

Catalyst Monitor Diagnosis – System Flowchart and Tables Entry Conditions UHEGO Sensor Ready (refer to UHEGO Sensor Monitoring) HEGO Sensor ready (refer to HEGO Sensor Monitoring) CL A/F control & sub F/B control and stoichiometric fueling requested Engine speed - 1000 rpm< nmot < 3000 rpm Accumulated exhaust mass gas flow > 1.5 Kg Relative air load - 20% < rl < 100%.

Exhaust mass flow - 20 kg/ h < emf < 200 kg/h.

Delta Exhaust Mass Flow - < 50 kg/h.

Ambient Temperature - > -20 degC. Catalyst oxygen purge complete (Post fuel cut off / lean fueling).

Catalyst temperature (Modeled) - 25 degC < Cat temp <900 degC Delta temp change - < 25 degC. Intake to exhaust gas scavenge flow ratio (1 = 0 (modeled)) - =1..

Conditions met?

Yes

Apply rich fuelling

Rich fuelling complete?

Yes

Apply lean fuelling No

Lean fuelling complete?

Yes

Catalyst temperature and mass flow factors

Calculate OSC

Update test number

Test number complete?

Yes

Declare final OSC Result

System pass

No

Fault threshold exceeded?

Yes

P0420

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Catalyst Monitoring Fault Code

Malfunction Strategy Description

Catalyst efficiency bank A TWCDPriCatB1 P0420

Oxygen storage capacity assessment of catalyst

Component/System

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

UHEGO Sensor Ready -

See description document ‘7. UHEGO Sensor Monitoring’

Time Req

MIL illum

20s

2 drive cycles

Catalyst Monitoring

(TWCD_DSMCfg/ TWCD_OSCEna/ TWCD_OSCMeas)

Oxygen storage capacity of catalyst assessed through rich See OSCNrm_MAP to lean fuel changes. An (table) averaged value over four results, weighted for mass flow and temperature is compared Ratio = 1 to the OSC of that for a limit catalyst. This ratio is then compared to a failure threshold.

HEGO (LSF/LSH) Sensors ready

See description document ‘8. & 9. HEGO Sensor Monitoring’

CL A/F control & sub F/B control and stoichiometric fueling requested Engine speed 1000 rpm < nmot < 3000 rpm Accumulated exhaust mass > 1.5 Kg gas flow Relative air load 20% < rl < 100% Exhaust mass flow 20 kg/h < msabvvk < 200 kg/h Delta Exhaust Mass Flow < 50 kg/h Ambient Temperature > -20 °C Catalyst oxygen purge complete (Post fuel cut off / lean fueling).

Catalyst temperature (Modeled) 25 °C < tkivkm <900 °C Delta temp change < 25 °C in 10s Fault codes that disable P013E, P013A, P2178, P0141, P2187, P0420 P2188, P0137, P0136, P0038, P0037, P0036, P0496, P0497, P0459, P0458, P0444, P0101, P0101, P0103, P0102, P0100), P0106(Pmax), P0106 (Pmin), P0106 (Bmax), P0106 (Bmin), P0105 (Bnpl), P0106 - (Bsig), P0108 , P0107, P000B, P2096, P2097, P2096, P2097, P0014, P000A, P2231, P2626, P0134, P0133, P0011, P2091, P2090, P0013, P2089, P2088, P0010, P00D1, P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131, P0032, P0031, P0030, P2243, P2251, P064D (Umax), P064D (Umin), P064D (Unpl), P064D

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Catalyst Monitoring Component/System

Fault Code

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

Secondary Parameters

Enable Conditions

Time Req

Catalyst Monitoring (con’t) Fault codes that disable P0420 (Usig), P0300 , P0501, P0502 , (continued) P0116 (Smax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0118 , P0117

Catalyst Monitoring OSCNrm_MAP

calculation of borderline OSC, 1st cat. bank 1 / map of end of life catalyst y

input x input y output w

2.5.

°C kg/h mg

x 20 40 70 100 130 150 180 210

500 50 50 50 50 50 50 50 50

550 50 50 50 50 50 50 50 50

600 50 50 50 50 50 50 50 50

650 50 50 50 50 50 50 50 50

700 50 50 50 50 50 50 50 50

750 50 50 50 50 50 50 50 50

800 50 50 50 50 50 50 50 50

900 50 50 50 50 50 50 50 50

Drive Cycle Information Drive the vehicle until the engine is fully warm (greater than +65 deg C), drive the vehicle in a steady state condition with the engine speed between 1000 and 3000 rpm and engine airflow between 10 and 55 grams per second for a duration of at least 30 seconds.

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MIL illum

3.

Misfire Monitoring

3.1.

Fault Codes P0300 - Random Misfire Detected P0301 - Cylinder 1 Misfire Detected P0302 - Cylinder 2 Misfire Detected P0303 - Cylinder 3 Misfire Detected P0304 - Cylinder 4 Misfire Detected P1315 - Misfire with the potential for Catalyst Damage

3.2.

System Overview The misfire detection monitor runs continuously and is designed to detect levels of misfire that can cause thermal damage to the catalyst or result in excessive tailpipe emissions. Determination of a misfire is made by analysis of changes in crankshaft speed, since a misfire will cause a fall in speed after a faulty firing event. This data is processed by three main algorithms to ensure the detection of all possible combinations of misfire.

The results of the misfire judgment process for each firing event are used to determine whether two failure levels have been met, 'catalyst damage' misfire and 'excess emissions' misfire. Each fault judgment process has its own failure threshold and calculation period.

The misfire monitor operates continuously within the boundaries of the regulated monitor operation window, as shown below.

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Region of misfire monitor operation After engine start, the monitor will be enabled as soon as the engine speed rises above the minimum operation speed (150 rpm below fully warm stabilised idle speed). 2 revolutions of crank angle data, i.e. one sample of data from each cylinder firing, must then be 'buffered' before any decisions can be made by the monitor.

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3.3.

Strategy Description 3.3.1. Introduction Different sections of the monitor operate at different 'loop' rates. 3.4 details the decisions made for each firing event in approximate chronological order, although some steps may not be made every 'loop'. Further explanation of these decisions is given below: 3.3.2. Recording segment time and position, and its manipulation The monitor utilises a 60 tooth trigger wheel with 2 missing reference teeth and an inductive sensor. From the crank signal a 'crankshaft segment time' is formed from a relevant combustion stroke. This measurement is taken over a set crankshaft rotation (segment) whose length and starting point relative to TDC can be defined. The segment times of firing and non-firing events will be different. The combination of starting point and segment period can be optimized to maximize this difference and generate the most robust misfire detection possible. The segment time for each combustion stroke is then held in a buffer and is used to form an ‘engine roughness measure’. This roughness value is used in the misfire judgment decision.

Due to the differing combustion conditions found during catalyst heating, a separate definition of start point and crank duration can be used which will improve post start misfire detection.

3.3.3. Adjustment of crank angle tolerance/engine roughness values To accommodate for differences in production tolerances and combustion influences 'crankshaft adaption' can be applied to refine segment times and roughness values. The whole adaption process operates in three stages, each stage being designed to improve detection and produces four levels of sensitivity as shown below.

Adaption Stage 1

Unadapted

Stage 3

Stage 2

Level 2

Level 3

Level 4

Detection Sensitivity

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Stage one is a ‘fuel off’ adaption, accounts for mechanical differences such as irregular tooth profile and occurs during fuel cut off conditions. Stage one must be completed before any other adaption stage can begin. Stages two and three are a ‘fuel on’ condition and introduce the influences of combustion and apply over a speed and load matrix. Stage two will apply the same adaption for all loads at a particular speed that have been derived from a ‘dominant’ load site. Once this dominant adaption has been completed stage three adaption is allowed and will occur at the individual load points at that particular speed. The actual adaption value is calculated through interpolation of the relevant speed and load values in this matrix. Since there can be a mixture of adaption states, when interpolating the lowest adaption status of the calculation group is used.

Stage one adaption is applied to the crank segment times with stage two and three being applied to the processed engine roughness values and are cylinder specific.

A separate adaption process is performed for the alternative catalyst heating segment set up.

3.3.4. Storing adaption values in back-up memory Adaption values are kept in non-volatile memory, which can only be reset by a service tester. Upon ‘ignition on’ these adaption values are copied to a backup memory and are initially used to calculate any signal corrections. The adaption procedure is controlled by a set of strict constraints. These safeguards ensure that where fault conditions, irregular running, dynamic effects or misfiring conditions are present, adaption will not occur and the process will be suspended or reset. If conditions are satisfied and sufficient adaption data is available then the backup adaption values can be updated. Upon ‘ignition off’ these backup values are used to update the non-volatile memory, thus being retained for the next trip.

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3.3.5. Misfire 'signal' calculation and misfire judgement The three detection algorithms consist of a main method with two support methods which are specifically designed to detect certain ‘patterns’ of misfire. All methods operate using an 'OR' authority, the combination of which aims to maximize misfire detection probability. The basic misfire signal and decision process is as below

The main method will manipulate the crankshaft segment time into the engine roughness value by comparison of the segment times of two consecutive combustions for each cylinder. This value is then compared to a speed / load threshold and if this is exceeded, a misfire judgment is declared.

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Threshold

Signal

Random misfire

One of the support methods compares engine roughness values staggered by 360° crank angle and compares the result to a separate speed / load based threshold. This function enhances the ability to detect random and continuous misfire patterns on rotating cylinders.

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Threshold

Signal

Continuous misfire

The second support method is designed to aid in the detection of continuous misfire of one or more cylinders. It utilizes a low pass filter on the individual cylinder roughness values and compares this to a speed / load based threshold.

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Threshold

Signal

Multiple cylinder misfire

The relevant thresholds for all methods can be altered by a coolant based factor to allow for warm up effects on combustion.

During catalyst heating the threshold can be adjusted to compensate for the differing combustion conditions to allow detection levels to be optimized. With each misfire judgment a cylinder counter is updated and used in later analysis.

3.3.6. Catalyst damage judgement P1315. If 200 revolutions of misfire judgments have been made the monitor will make an assessment as to whether 'catalyst damage' levels of misfire have been exceeded or not. The failure level is determined from a look up table. The sum of individual cylinder misfire counters is then compared against this threshold.

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3.3.7. Excess emissions judgement An ‘excess emission judgment’ is made over a 1000 revolution period. The monitor will make an assessment as to whether 'emissions failure' levels of misfire have been exceeded or not. The failure level is a single threshold value. The sum of individual cylinder misfire counters is compared against this threshold and if exceeded a fault decision made. The declaration will be made as soon as the threshold is passed and does not wait until the end of the 1000 revolution block.

3.3.8. Monitor execution check Different monitor enable conditions are checked depending upon the operating condition of the engine (for example, fewer conditions apply during engine start). If all the appropriate enable conditions are met the monitor execution flag is set.

3.3.9. Rough road A rolling average of 'delta' wheel speed data is calculated from ABS vehicle speed data that is transmitted over the CAN network. This data is compared to calibrated thresholds to determine if the vehicle is being driven over a rough surface that causes misdiagnosis of a misfire. If a rough road judgment is made the appropriate flag is set and taken into account the next time monitor execution conditions are checked.

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3.4.

Misfire Monitor – System Flowchart and Tables Engine started and running

Crank shaft signal

Two revolutions of crank shaft signal data buffered Uncorrected segment time calculated

Stage 1 adaption conditions met

Stage 1 adaptions complete?

Yes

Yes

Update stage 1 adaptions and update back up memory

Apply cylinder specific adaption to crank segment time Determine engine roughness values

Are stage 2/3 adaptions available?

Stage 2/3 adaptions conditions met

Yes Yes

Apply adaptions to engine roughness values

Determine stage 2 & 3 adaption values and update back up memory

Engine speed - 480 < nmot < 6500 rpm .

Coolant temperature - > -8.1 degC .

Ambient temperature - -20 degC < Amb temp < 119 degC Engine load – Positive or post start conditions present .

Engine speed delta - < 2200 rpm/s.

Fuel cut off - Not Active.

Rough road - Not Detected.

Slip control - Not Active.

Catalyst heating active

Yes/No

Determine threshold

Are monitor conditions met?

Yes Check misfire signals against threshold

Misfire Judgment made?

Yes Misfire counters updated

Engine speed/load/ coolant temp "Catalyst Damage" judgment made and code set, if appropriate conditions have been met

"Excess emissions" judgment made and code set, if appropriate conditions have been met

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Misfire Monitoring Fault Code

Component/System

Malfunction Strategy Description

Malfunction Criteria

Crank speed fluctuation

Misfire at catalyst damage level (200 rev block) or Misfire at excess emissions level:

Threshold Value

Secondary Parameters

Enable Conditions

Time Req MIL illum

Engine speed Coolant temperature Ambient temperature Engine load Engine speed delta Fuel cut off Altitude -

480 < nmot < 6500 rpm > -8.1 °C -20 °C < Amb temp < 119 °C Positive or post start condition < 2200 rpm/s Not Active. < 9900 ft.

Rough road Slip control -

Not Detected Not Active

Depends on 1 Drive engine Cycle speed, for misfire catalyst pattern and time damage after engine 2 Drive start Cycles for excess emissions

Misfire Monitoring Random Misfire Detected Misfire cylinder 1 Misfire cylinder 2 Misfire cylinder 3 Misfire cylinder 4

P0300 P0301 P0302 P0303 P0304

> See Misfire Charts Below > 2.60 %

Catalyst damaging misfire P1315 Misfire at low fuel level P131A (DMDMIL)

P062F (Erase), P062F (Read), P062F (Wrt), P0335, P0336, Fault codes that disable P0301 P0351, P2301, P2300 Fault codes that disable P0302 P0352, P2304, P2303 Fault codes that disable P0303 P0353, P2307, P2306 Fault codes that disable P0304 P0354, P2310, P2309

Engine Load %

Fault codes that disable P0300

20 40 60 80 90 100

1000 9% 9% 9% 9% 9% 9%

2000 9% 9% 9% 9% 9% 9%

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Engine Speed rpm 3000 4000 9% 9% 9% 9% 9% 9% 3% 5% 3% 5% 3% 5%

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5000 9% 9% 9% 5% 5% 5%

6000 9% 9% 9% 5% 5% 5%

Jaguar Land Rover Limited

Page 24 of 173

4.

Evaporative System Monitoring

4.1.

System Schematic

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4.2.

System Description The evaporative monitoring system being used permits the detection of leaks with a diameter of 0.5 mm (20 thousandths of an inch) or greater.

This is achieved by means of a pressure test of the system. This is performed by the Diagnostic Module - Tank Leakage (DMTL), which is an electrically operated pump fitted to the atmospheric air intake of the charcoal canister.

The test proceeds in 2 stages: Reference Leak Measurement - The pump operates against the reference restriction within the DMTL. The Engine Control Module measures the current consumption and speed of the pump motor during this phase.

Leak Measurement - The solenoid in the DMTL is operated in order to shut off normal purge air flow into the charcoal canister.

The pump can now pressurize the fuel tank and vapor handling system. The Engine Control Module again measures the current consumed and speed of the pump motor. A comparison based upon these parameters forms the basis of the Evaporative System Monitor.

The actual process is as shown in 4.5 Evaporative System Monitoring – System Flowchart

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4.3.

Fault Conditions That Can Be Identified P0442 - Evaporative Emission System Leak Detected (small leak) P0456 - Evaporative Emission System Leak Detected (very small leak) P0457 - Evaporative Emission System Leak Detected (fuel cap loose/off) P2406 - Reference current high P2405 - Reference current low P2407 - Reference current plausible P043F - Reference current frequency high P043E - Reference current frequency low P2404 - COV current low P2402 - Pump electrical high P2401 - Pump electrical low P2400 - Pump electrical open circuit P2420 - COV electrical high P2419 - COV electrical low P2418 - COV electrical open circuit P240C - Pump heater high P240B - Pump heater low P240A - Pump heater open circuit

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4.4.

Fault Determination 4.4.1. Reference Leak Measurement

In the reference position the evaporative system is sealed off and the pump is forced to act through the reference orifice (0.5 mm). The pump speed and electrical pump current will depend on size of reference leak and these are measured. The volume flow of the pump will equal the volume flow of the leak and this can be determined from the pump speed. The actual volume flow depends upon ambient air temperature, ambient pressure and on the increased pressure due to the pump. From these measurements the actual pump pressure can be characterized from the pump current.

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4.4.2. Tank Measurement

The valve is now changed to allow the pump to act on the tank side of the purge control valve. Again, in this case, the volume flow of the pump equals the volume flow of the leak. By comparing the pump current during the reference measurement and tank filling (relative current) an approximation to the tank pressure can be made.

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4.4.3. Fault Assessment The actual fault analysis is split into a large leak check followed by a small leak check.

4.4.3.1.

Small Leak / Rough Leak (> 0.040 inch) In the case of a small leak the pressure in the tank will never reach a sufficiently high stabilized pressure (see below). A pressure comparison is made and if a stabilized tank pressure is below a threshold and this occurs within a ‘actual leak test time’ then a fault is declared.

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4.4.3.2.

Very Small Leak (0.020 inch)

Due to the smaller tank pressure differential with a very small leak and sealed system an alternative algorithm is used. A recursive least squares (RLS) analysis of the system parameters (relative pressure and volume flow) are used to estimate a leakage size. Using this method separation of borderline leak states can be made (see below). The result of the leak is calculated when the tank pressure is greater than a threshold or the variance of the estimated area is smaller than a threshold and the minimum time of the test is over. If the estimated area is greater than a threshold then a leak is found else a tight system is declared.

The logic for MIL illumination and storage of service $03 (confirmed), $07 (fault during present or last completed drive cycle) or $0A (permanent) fault codes follows the normal OBD II rules, with two fails leading to a MIL and a confirmed DTC.

0.5mm

0.3mm

tight

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4.4.3.3.

Fuel Cap Warning Message Since incorrect fastening of the gas cap can often result in MIL illumination and storage of a leak fault. Jaguar Land Rover displays a message on the instrument pack that states "Check Fuel Filler Cap" or "Check Filler Cap".

The message appears when the diagnostic first flags, giving the customer the opportunity to check the gas cap before the diagnostic runs again and leads to MIL illumination. The message will not be displayed at the next key on.

4.4.3.4.

Filler Cap Removal and Re-Fueling In the case where the tank cap is opened during the DMTL diagnosis the tank pressure drops to atmospheric pressure suddenly. A parallel drop in pump current is also seen. If a refueling should take place during a diagnostic routine the gas vapors displaced by the liquid cannot pass easily to the environment or be directed through the active charcoal filter as the DMTL valve is closed. Therefore pressure builds up in the tank rapidly, which can be recognized in the rapidly increasing pump current. To be able to detect both conditions a band-pass filtered pump current is used. When the tank cap is opened the current will fall under a threshold and an open tank cap declared. During refueling the filtered pump current rises above a threshold and a refueling event is declared.

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4.5.

Evaporative System Monitoring – System Flowchart and Tables Engine Shut Down Entry Conditions

P2404

Conditions Met

P2402 P2401

Yes P2400 P2420

No

P2419

Pump and COV diagnostics ok

Engine temp at start <= ambient air temp + 6.8 °C Min post crank time for dmtl > 600secs Ambient air temperature - 0 °C < Amb temp < 40 °C Altitude correction factor >= 0.69 Fuel level - 15 % < fstt_w < 85 % Battery voltage - 10.5 v < vbatt < 16 v DMTL module current change due to refuelling > 2.5mA DMTL module current change due to cap removal < -0.5mA DMTL module current change due to high evaporation (fresh fuel) – see summary table

P2418 P240A P240B

Yes Reference Leak Measurement

P240C P2406 P2405 Reference Current/frequency in range?

P2407

No

P043F P043E

Yes

Rough Leak Measurement

Filler Cap Removal and/or Refuelling?

Yes

End

No

Calculated stable tank pressure < threshold and timers ok

Yes

Rough Leak Detected

P0442

No Small Leak Measurement

Filler Cap Removal and/or Refuelling?

Range Rover Evoque & Land Rover Freelander

Yes

End

RLS leak estimate > threshold and timers ok

Small Leak Detected

Leak Free System Detected

Shut down ECM

JLR 19 39 18_1E

P0456

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Page 33 of 173

Fuel Evaporative Leak Monitoring Component/System

Fault Code

Malfunction Strategy Description

Fuel Evaporative Leak Monitoring rough leak TESG P0442 Pressure test of system using ECM driven pump (DDMTLDFC)

small leak DMTK P0456

Malfunction Criteria

Tank pressure change stable and < 0.05 KPa Tank pressure and < 0.95 KPa Time without pressure change and > 25 s Actual leak test time > 200 s Estimated leakage area and > 0.17 mm2 Tank pressure and < 6 KPa

Reference current high DMTLmax P2406 low DMTLmin P2405 plausible DMTLsig P2407 Reference current frequency high DMTLFREQmax P043F low DMTLFREQmin P043E plausible DMTLnpl P2404

Threshold Value

Actual leak test time and

> 740 s

Tank pressure

< ref tank pressure * 1.95

During reference stage : DMTL module current DMTL module current if DMTL module current max minus DMTL module current min if DMTL module current frequency if DMTL module current frequency module current between ref and idle states

Secondary Parameters

Enable Conditions

Engine temp at start Min post crank time for dmtl Ambient temperature Altitude correction factor Fuel level Battery voltage DMTL module current change due to refueling -

<= ambient air temp + 20 °C > 600 s 0 °C < Amb temp < 40 °C < 10283 ft.

15 % < fstt_w < 85 % 10.5 v < vbatt < 16 v > 1.2 mA

DMTL module current change due to cap removal -

< -0.5 mA

DMTL module current change due to high evaporation (fresh fuel) -

See KLDRIPAB (table)

> 40 mA < 15 mA > 0.5 mA > 120 mA < 60 Hz >2 mA Fault codes that disable P2406, P2420, P2418, P2402, P2401, P2405, P2407, P043F, P043E or P2400, P0688, P0501, P0502, P2404 P2419, P0116 (CSmax), P0116 (CSmin), P0118 , P0117, P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0459 , P0458, P0444, P0496

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Time Req

MIL illum

From 200 s to 400 s

2 drive cycles

From 300 s to 740 s

Fuel Evaporative Leak Monitoring Component/System

Fault Code

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

Time Req

MIL illum

Vehicle speed 25 mph < vfzg < 75 mph Min post crank time for > 600 s Ambient pressure minus stored -0.15 KPa < p < 0.15 KPa ambient pressure Rough leak set Or Refueling detected Fault codes that disable P0442 P2420, P2418, P2402, P2401, and P0456 P2400, P0688, P0501, P0502, P2419, P0116 (CSmax), P0116 (CSmin), P0118, P0117, P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0459, P0458, P0444, P0496.

From 200 s to 400 s

No

Battery voltage Leak detection module state -

> 11 v operating See description document ‘4 Evaporative System Monitoring’

0.2s

2 Drive Cycles

Battery voltage Leak detection module state or Battery voltage Engine Speed -

> 11 v operating

Secondary Parameters

Enable Conditions

Leak Detection (cont) Open gas cap during driving P0457 CFCmax (DDMTLCGC)

Electrical continuity checking leak detection - power stages Pump DMPMEmax P2402

Valve

Heater circuit

Check filler cap diagnostic ran The leak check diagnostic is forced during driving after a rough leak or to run under driving conditions. If a small leak or refueling event leak is flagged then ‘Check Fuel detected Filler Cap’ is displayed in the instrument pack.

Short to battery

DMTL Pump Shunt Voltage

Or Jammed / continuously high power loss

DMTL Pump Shunt Voltage (If short to Battery not detected)

DMPMEmin P2401 DMPMEsig P2400

Power stage internal checks

Short to ground – Voltage (off) Open circuit – Voltage (off)

high DMMVEmax P2420 low DMMVEmin P2419 DMMVEsig P2418

Power stage internal checks

Short to battery – Current (on) Short to ground – Voltage (off) Open circuit – Voltage (off)

DHDMTEmax P240C DHDMTEmin P240B DHDMTEsig P240A (DDMTLHWE)

Power stage internal checks

Short to battery – Current (on) Short to ground – Voltage (off) Open circuit – Voltage (off)

>4v For 0.12 s > 1.8 v for 0.45 s < 3.77 v 3.77 < v < 5.4 v >4A < 3.77 v 3.77 < v < 5.4 v >4A < 3.77 v 3.77 < v < 5.4 v

> 11 v Engine started and running.

Fuel Fuel Evaporative Leak Monitoring KLDRIPAB - Value to abort the test due to high evaporation or high fuel level input x output w

mA

2.00 0.14

3.00 0.14

Range Rover Evoque & Land Rover Freelander

4.00 0.14

5.00 0.14

6.00 0.14

JLR 19 39 18_1E

7.00 0.14

8.00 0.14

9.00 0.14

Jaguar Land Rover Limited

Page 35 of 173

4.6.

Diagnosis Frequency and MIL Illumination No refueling detected; leak > 0.040" Soak > 3h

Ignition

Driving Cycle

Soak > 3h

Driving Cycle

Soak > 3h

Driving Cycle

Soak > 3h

Driving Cycle

ON OFF

Leak diagnosis

Cycle Bit

If Leak detected: Failure Bit

MIL

4.7.

ON OFF

Drive Cycle Information Engine must have been off for a minimum of 3 hours, fuel level must be between 15 and 85%, ambient temperature must be between 0 and +40 deg C; vehicle must be driven for a duration greater than 10 minutes, must include a 30 second period within an engine speed between 500 and 2500 rpm, switch engine off for a minimum period of 15 minute. May require repeat test if the vehicle has been recently refuelled.

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After refueling detected; leak > 0.020" Soak > 3h

Ignition

Driving Cycle

Soak > 3h

Driving Cycle

Soak > 3h

Driving Cycle

Soak > 3h

Driving Cycle

ON OFF

Refueling detected Leak diagnosis

Cycle Bit

If Leak detected: Failure Bit

MIL

ON OFF

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5.

Purge Valve Monitoring

5.1.

System Schematic

5.2.

System Description The purge system uses a duel path arrangement to provide purge flow during non-boost and boosted conditions. Under nonboost conditions purge will flow through the RSV1 one way valve into the post throttle inlet manifold. Under boost conditions purge flows through the RSV2 valve into a venturi system allowing purge flow at near atmospheric pressure to be introduced into the inlet before the turbocharger compressor.

The purge diagnostic uses the DMTL pump to apply pressure into the purge system whilst the engine is running. It runs once per trip and requires the completion of a valid fault free tank leak check to have been completed. The basis to the fault analysis, as with the tank diagnostic, is the measurement and analysis of the pump current. Again comparisons of system measurements against a reference measurement are used.

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5.3.

Fault Conditions That Can Be Identified P0496 - Evaporative Emission System High Purge Flow P0497 - Evaporative Emission System Low Purge Flow P144B - Evaporative Emission System Secondary Purge Vapor Line Restricted/Blocked P144C - Evaporative Emission System Purge Flow Performance During Boost P0444 - Evaporative Emission System Purge Control Valve A Circuit Open P0458 - Evaporative Emission System Purge Control Valve Circuit Low P0459 – Evaporative Emission System Purge Control Valve Circuit High

5.4.

Fault Determination 5.4.1. Reference Leak Measurement This is performed during the tank leak diagnostic. The values for reference current and idle current are measured in a similar manner to that shown below. The difference between these currents is stored.

5.4.2. Purge System Measurement During the purge test the DMTL pump is initially activated in the reference condition i.e. through the reference orifice only. A new reference current for the purge test is determined from this and is independent of the tank leak reference measurement.

Following the reference current measurement an ‘idle current’ is measured. This is the result of the current obtained shortly after the DMTL solenoid is opened allowing the pump to act on the evaporative system with the CPV closed. Shortly after a stable idle current has been established the CPV is opened with three possible outcomes.

1) CPV and purge line ok. If the pump current decreases sharply this indicates that the purge valve has opened and that the purge lines are not blocked because the pump is being asked to do little work (i.e. build up pressure).

2) CPV stuck closed or purge lines are blocked. If the current slowly increases, then pressure is being produced which indicates either a stuck valve or blocked purge pipes.

3) CPV stuck open. In this case the pump will be acting on the pressure in the purge pipe system. Under non-boost conditions this will be manifold pressure and in this case the idle current will be lower than that for a normal system.

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5.4.3. Fault Assessment 5.4.3.1.

CPV stuck open P0496. A comparison is made based upon the difference between the reference and idle current measured under this condition and that stored during the tank diagnostics. For a stuck open condition this difference will be greater than that for the reference condition. If the measured difference is greater than the reference difference multiplied by a calibration factor then a fault is declared. The diagnostic will only run under non-boost conditions.

5.4.3.2.

CPV stuck closed or purge lines are blocked P0497 and P144B. Following the CPV test closure the pump current is measured. For a good system this current should drop below a current threshold and this depends on whether non boost or boost conditions exist. Differing thresholds are calibrated to observe faults in the non-boost path (P0497) or the boost path (P144B) and these thresholds have to be exceeded for a time period before a fault is declared.

5.4.3.3.

Flow performance / disconnected P144C. An additional analysis is performed in order to detect a disconnection of the venturi path pipe work. The diagnostic looks at a combination of fuel, throttle and intake manifold adaptions. The diagnostic assesses the change in these adaptions on a drive to drive cycle basis and thresholds are set such that a venturi path disconnect can be detected if all three adaption values exceed their respective thresholds.

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5.5.

Purge Flow Monitoring – System Flowchart and Tables Entry Conditions Conditions met

Ignition switch - On. Battery voltage > 11 v

Yes

Powerstage Internal check

Fail

Entry Conditions Conditions met Ambient air temperature- 0 °C< Amb temp < 40 °C Altitude correction factor > 0.69 After start timer for DMTL module > 600 s Fuel level < 85% Engine Coolant temperature > 70 °C Battery voltage - 10.5 v < ubsq < 16 v Closed loop purge control active Vehicle speed - 15 km/h < vfzg < 120 km/h Boosted purge pipe path not active

Pass P0444

Yes Shut Purge valve

P0458

Determine Reference Current

P0459

Open DMTL Valve

Determine Idle current

Calculate Purge Reference and idle current difference

DMTL Reference Difference

Multiplicative factor

Purge difference > DMTL difference

Yes CPV stuck open

P0496

Yes

P0497

No Open Purge valve

Measure current

Calculate current threshold dependent upon boost condition

Current threshold exceeded

Yes

Non Boost condition

No

No Assess ‘drift’ in Fuel, Throttle and intake manifold adaptions

Adaptions exceed threshold

Yes

P144B

P144C

No

System pass

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Purge Valve Monitoring Component/System Evaporative Purge Valve TEVEmax Circuit continuity TEVEmin TEVEsig (DTEVE) Purge valve TESmin stuck closed (DTEDFPSV)

Fault Code

Malfunction Strategy Description

Malfunction Criteria

P0459 P0458 P0444

Short to battery Short to ground Open circuit

P0497

The Canister Purge System with engine running uses the DMTL module as a pressure sensor

Threshold Value

Time Req.

MIL illum.

On > 11 v

0.2 s

2 Drive Cycles

0 °C< Amb temp < 40 °C < 9900 ft. > 600 s < 85% > 70 °C 10.5 v < ubsq < 16 v

10 s

Secondary Parameters

Enable Conditions

Power stage internal check

Ignition switch Battery voltage -

As purge valve opens, if filtered DMTL module current => Current threshold for minimum error.

The input to DITESMIN is the difference between reference and idle obtained from the DMTL reference measurement.

Ambient air temperature Altitude After start timer for DMTL module Fuel level Engine Coolant temperature Battery voltage Closed loop purge control active Vehicle speed Fuel Evaporative Leak Monitor completed Boosted purge pipe path not active

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DITESMIN (table) after 5s

Jaguar Land Rover Limited

10 mph < vfzg < 75 mph

Page 42 of 173

Purge Valve Monitoring Component/System

Fault Code

Evaporative Purge Valve (cont) Purge valve TESmax P0496 stuck open (DTEDFPSV)

Malfunction Strategy Description

Malfunction Criteria

The Canister Purge System with engine running uses the DMTL module as a pressure sensor

When purge valve test active, if DMTL pump current between ref and idle > Current threshold for maximum error.

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Threshold Value

DMTL reference idle current difference x 1.2

Secondary Parameters

Enable Conditions

Ambient air temperature 0 °C< Amb temp < 40 °C Altitude < 9900 ft.

After start timer for DMTL module > 600 s Fuel level < 85% Engine Coolant temperature > 70 °C Battery voltage 10.5 v < ubsq < 16 v Closed loop purge control active Vehicle speed 10 mph < vfzg < 75 mph Fuel Evaporative Leak Monitor completed Boosted purge pipe path not active Fault Codes that disable P0496 P0103, P0102, P0100, P0101 or P0497 (Rmax), P0101 (Rmin), P0507, P0506, P0505, P0106 (Bmax), P0106 (Bmin), P0105 (Bnpl), P0106 (Bsig), P0108, P0107, P0106 (Pmax), P0106 (Pmin), P0501, P0502, P2091, P2090, P0013, P000B, P0014, P2176, P0133, P2089, P2088, P0010, P000A, P0011, P0335, P2231, P0032, P0031, P0030, P00D1, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P2626, P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131, P2243, P2251, P0300, P2096 (Umax), P2097 (Umin), P2096 (Unpl), P2097 (Usig), P0116 (CSmax), P0116 (CSmin), P0118, P0117, P0116 (Pmax), P0116 (Pmin), P0116 (npl), P0134), P2135, P0459, P0458, P0444

Jaguar Land Rover Limited

Page 43 of 173

Time Req.

MIL illum.

10 s

2 Drive Cycles

Purge Valve Monitoring Component/System

Fault Code

Evaporative Purge Valve (cont) TESPL P144B Evap system 2nd purge line (Restricted / blocked) (Boosted condition only) (DTEDFPSV)

Malfunction Strategy Description

The Canister Purge System with engine running uses the DMTL module as a pressure sensor

Malfunction Criteria

Threshold Value

DITESSPLMN As purge valve opens (table) and the second purge After line is active 6s If filtered DMTL module current => Current threshold for minimum error.

The input to DITESSPLMN is the difference between reference and idle obtained from the DMTL reference measurement.

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Secondary Parameters

Enable Conditions

Ambient air temperature 0 °C< Amb temp < 40 °C Altitude < 9900 ft.

After start timer for DMTL module > 600 s Fuel level < 85% Engine Coolant temperature > 70 °C Battery voltage 10.5 v < ubsq < 16 v Closed loop purge control active Vehicle speed 10 mph < vfzg < 75 mph Fuel Evaporative Leak Monitor completed Boosted purge pipe path active Fault Codes that disable P144B P2406, P2407, P2405, P2404, P0071, P2420, P2418, P2402, P2401, P2400, P0073, P0688, P0300, P0072, P0069 (Rmax), P0069 (Rmin), P0069 (Rnpl), P2227, P2419, P2229, P2228, P0496, P2231, P2096 (Umax), P2097 (Umin), P2096 (Unpl), P2097 (Usig), P2626, P0134 , P00D1, P2237, P0032, P0031, P0030, P2237 (Pnpl), P2237 (Psig), P0132, P0131, P0459, P0458, P0444, P2243, P0133, P2251, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P0501, P0502, P0116 (CSmax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0118, P0117

Jaguar Land Rover Limited

Page 44 of 173

Time Req.

MIL illum.

10 s

2 Drive Cycles

Purge Valve Monitoring Fault Code

Component/System

Evaporative Purge Valve (cont) Evap system TESPLnpl P144C 2nd purge line. (flow perf / disconnected) (DSecPrgLineAirFil)

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

The secondary purge line Fuelling :Is supervised for correct mounting/disconnection.

Stored previous drive cycle fuelling System adaptions : Fuel and adaption minus current fuelling throttle are checked / compared adaption over the current drive cycle against and E2 stored previous drive cycle Throttle :adapts, flagging a failure if any drift Stored previous drive cycle throttle beyond a calibrated threshold (no adaption minus current fuelling other purge system faults may adaption > exist).

Secondary Parameters

Enable Conditions

Engine started and running .

Fuelling adaption stable flags.

Throttle adaption stable flags set. < -0.1

> 0.1

Evaporative Purge Valve DITESSPLMN - minimum difference current to detect minimum error TES second purge line mA mA

2.00 0.70

4.00 0.80

Range Rover Evoque & Land Rover Freelander

6.00 0.90

8.00 1.00

9.00 1.10

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Jaguar Land Rover Limited

MIL illum.

Contin- 2 Drive uous Cycles

Fault Codes that disable P144C P0234, P0299

input x output w

Time Req.

Page 45 of 173

6.

Fuel System Monitoring

6.1.

Fault Conditions That Can Be Identified P2187 - System Too Lean at Idle (Bank 1) P2188 - System Too Rich at Idle (Bank 1) P2177 - System Too Lean Off Idle (Bank 1) P2178 - System Too Rich Off Idle (Bank 1)

6.2.

Fuel System Monitor – System Description The fuel system diagnostic monitors the long term fuel trim adaptions to check if any of the adaption points has reached its rich or lean limit indicating that no more adaption is possible. This will not immediately lead to higher emissions, because the short term fuel trim can take care of additional errors in the fuelling system.

The long term fuel trim is calculated from the UHEGO sensor, and is split into additive and multiplicative terms. The additive term (ORA) accounts for inlet air leaks and have a major influence at low air mass flows. The multiplicative term (FRA) accounts for mass flow, fuel pressure or temperature measurement errors and although it applies throughout the load and speed range, it is more prominent at higher measurement factors. The areas of greater prominence are as shown below.

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Page 47 of 173

Below are some faults that illustrate cases which could cause higher emissions: 

Air leakage after the MAF sensor If there is an air leakage after the MAF sensor, this will result in unmeasured air being added to the intake charge. The short term and long term fuel trim will adjust the fuel amount to achieve a homogenous A/F mixture, and if the leakage is large enough, the diagnostic will detect a lean fault. This fault has its greatest influence at low engine loads.



Other faults leading to a lean Air-Fuel mixture If for example there is a fault which results in decreased fuel, this could also affect the short term and long term fuel trim.

If this difference from the target pressure is large enough, then the diagnostic will detect a lean fault. This fault has its greatest influence at high engine loads.



MAF sensor which is biased rich If the MAF sensor measures less air than is passing the sensor, then this will result in a rich combustion mixture. If the deviation is large enough, then the diagnostic will detect a rich fault.



Other faults leading to a rich Air-Fuel mixture If the fuel pressure regulator is faulty, the injectors are worn, or there is another fault which will result in a rich air-fuel mixture, then the diagnostic will detect a rich fault.

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6.3.

Fuel System Monitoring – System Flowchart and Tables

Entry Conditions UHEGO Sensor Ready - See ‘Catalyst Monitor’.

HEGO Sensor ready - See ‘Catalyst Monitor’.

Engine started and running Closed loop Fueling active and Stoichiometric fueling requested Additive range of mixture adaptation is active Stabilized adaption value deviation < 0.04.

Entry Conditions

Check adaptions

Additive adaptions exceed threshold

Lean

Yes

P2187

Rich

Yes

P2188

Lean

Yes

P2177

Rich

Yes

P2178

Yes

No

Multiplicative adaptions exceed threshold

Yes

No System pass

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Page 49 of 173

Fuel System Monitoring Component/System

Fault Code

Fuel System - Secondary Feedback Adaption ORAmax P2187 ORAmin P2188

FRAmax P2177 FRAmin P2178

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Fuelling adaptions at idle

If excessively lean If excessively rich

< -6.98 % > 6.98 %

Fuelling adaptions off idle

If excessively lean If excessively rich

< 0.72 > 1.28

JLR 19 39 18_1E

Jaguar Land Rover Limited

(DKVSDFC)

Range Rover Evoque & Land Rover Freelander

Secondary Parameters

Enable Conditions

HEGO Sensors ready See ‘Catalyst Monitor’ Engine started and running Closed loop Fueling active and Active Stoichiometric fueling requested Additive range of mixture adaptation is active Stabilized adaption value < 0.04 for 200ms deviation UHEGO Sensor Ready See ‘Catalyst Monitor’ HEGO Sensors ready See ‘Catalyst Monitor’ Closed loop Fueling active and Active Stoichiometric fueling requested multiplicative range of mixture adaptation is active.

Fault codes that disable Fuel P054A, P2091, P2090, P0013, System monitoring P000B, P0014, P2176, P0133, P052A, P2089, P2088, P0010, P000A, P0011, P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P0336 (ErrSig), P0335 (NoSig), P2231, P0032, P0031, P0030), P00D1, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P2626 , P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131, P2243, P2251, P0300, P2096 (Umax), P2097 (Unpl), P2096 (Unpl), P2097 (Usig), P011C (CSmax), P011C (CSmin), P007D, P007C, P007E, P007B (Rmax), P007B (Rnpl), P0459, P0458, P0444, P0116 (CSmax), P0116 (CSmin), P0118, P0117, P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0134, P0496.

Page 50 of 173

Time Req

MIL illum

0.2 s

2 Drive Cycles

Fuel System Monitoring Component/System

Fault Code

Fuel System - Secondary Feedback Adaption Bank A Sub PLLSUmax P2096 feedback too lean Bank A Sub feedback too rich

PLLSUmin P2097

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Sub feedback adaption outside limit value

Sub feedback trim value

Sub feedback adaption outside limit value

Sub feedback trim value

(DPLLSU)

Secondary Parameters

Enable Conditions

> 0.035

UHEGO Sensor Ready HEGO Sensors ready -

See ‘Catalyst Monitor’ See ‘Catalyst Monitor’

< -0.035

Closed loop Fueling active and stoichiometric fueling requested for-

>1s

Fault codes that disable Fuel P0138, P0137, P0141, P0136, System monitoring P0054, P2270, P2271, P0133, P2626, P0032, P0031, P0030, P00D1, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P2237 (Pmax), P2237 (Pnpl), P2237 Psig), P0132, P0131, P2243, P2251, P0134

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Page 51 of 173

Time Req

MIL illum

1s

2 Drive Cycles

Fuel System Monitoring Component/System

Fault Code

High Fuel Pressure System High Pressure STHDRmax P00C6 Rise Time (DSTHDR)

Malfunction Strategy Description

Malfunction Criteria

High pressure fuel system pressure rise checked during engine start

If the system pressure during start is below a pressure dependent on temperature and engine synchro’s then a fault is declared

Threshold Value

Secondary Parameters

Enable Conditions

See

Engine temperature at start -

-48 °C < nmot < 60 °C

KLPROSTHD

Fuel rail pressure (high) =< 1.5 MPa (table) and High pressure start requested.

KLRSTHDR Condition not hot start (table) (Fuel system has been able to heat up/ fuel vaporization).

Fault Codes that disable P00C6 P0251, P0254, P0253, P0193, P0192

High Fuel Pressure System KLPROSTHD Threshold rail pressure for start with high fuel pressure input x output w

°C Mpa

-30.00 8.00

-15.00 7.00

0.00 4.00

20.25 3.50

60.00 2.62

90 2.45

60.00 12.00

90 12

KLRSTHDR - Number of synchros for waiting for high fuel pressure input x output w

°C

-30.00 24.00

-20.25 20.00

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0.00 12.00

20.25 12.00

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Page 52 of 173

Time Req.

MIL illum.

Depen- 2 Drive dent Cycles upon temp

Fuel System Monitoring Fault Code

Component/System

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

2s

2 Drive Cycles

High Fuel Pressure System (cont) If a filtered value of the Engine Speed Cranking or Engine started and < 16 MPa controller output is above or running. below a threshold then a fault > -16 MPa High fuel pressure regulation. is declared If a filtered value of the Pressure < -1.5 MPa Fuel mass 5% < rkmeeff_w < 240% pressure set point and actual HDRmin P228D is plausible. It looks to see if > 1.5 MPa After start counter > 2s pressure is above or below a the fuel rail pressure activity is threshold then a fault is (DKVBDEPL) Not in fuel cut. within limits declared Unfiltered rail pressure real Sensor range DSKVRmax P0088 Out of range check >KLPRMXPRC value check (table) Unfiltered rail pressure real DSKVRmin P0087 Out of range check < 0.15 MPa value (DDSKV) for 10 s Fault Codes that disable P228D, P228C , P0088, P228E & P228F P0087, P0191 (Rnpl), P0191 (Rsig), P0251, P0254, P0253, P0193, P0192 Fault Codes that disable P0088, P0087, P0191 (Rnpl), P228C & P228D P0191 (Rsig), P0251, P0254, P0253, P0193, P0192 Fault Codes that disable P0193, P0192 P0087 & P0088 Controller

Checks if the pressure control is plausible. It looks to see if the controller activity is within HDRPLmin P228E limits HDRmax P228C Checks if the pressure control

HDRPLmax P228F

10 s

High Fuel Pressure System KLPRMXPRC - limit for range check, dependent on nmot input x output w

rpm Mpa

0 26

560 26

Range Rover Evoque & Land Rover Freelander

600 19

7000 19

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Fuel System Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Ignition switch -

On

Battery Voltage -

7.5 v < vbatt < 16 v

Time Req.

MIL illum.

High Fuel Pressure System (cont) High pressure fuel pump

MfPsOpenLoad P0251

MfPsShCirBattHighSide P0259

MfPsShCirBattLowSide P0254

MfPsShCirGndHighSide P0258

MfPsShCirGndLowSide P0253

(MFPSDIA)

Check for Mass Flow Valve Powerstage for Open Load.

Monitors voltage during the idle state, DFC is raised if test voltage 1.4 v ~3.2 v between threshold for three successive tests Check for Mass Flow Valve Monitor checks voltage within the Powerstage for Short Circuit to HPFP Output stages during drive Battery on the High Side of MSV phase with the expected values. = 3.2 v DFC is raised if test voltage is equal to threshold for three successive tests.

Check for Mass Flow Valve Monitor checks voltage within the Powerstage for Short Circuit to HPFP Output stages with the Battery on the Low Side of MSV. expected values during idle phase. > 3.2 v DFC is raised if test voltage is exceeds threshold for three successive tests.

Check for Mass Flow Valve Monitor checks voltage within the Powerstage for Short Circuit to HPFP Output stages with the Ground on the High Side of MSV expected values during off state. < 1.4 v DFC is raised if test voltage is less than threshold for three successive tests Check for Mass Flow Valve Monitor checks voltage within the Powerstage for Short Circuit to HPFP Output stages with the Ground on the Low Side of MSV expected values during off state. < 1.4 v DFC is raised if test voltage is less than threshold for three successive tests

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0.3 ms 2 Drive Cycles

Fuel System Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Unfiltered low pressure raw value

Range check max

> 1150 KPa

Ignition switch -

On

1s

2 Drive Cycles

Range check max

< 50 KPa

Battery voltage -

> 10.5 v

for

2s

Rationality - measured versus

Difference above a threshold

> 100 KPa

condition low pressure sensor raw

target

for

10 s

value valid

Pump duty cycle check

A fault is raised if the pump duty cycle is below or above for set time

Fuel Supply Pressure Sensor (low pressure) Fuel system DSKVNRmax P008B pressure DSKVNRmin P008A (DDSKVND) NDRmin P008A NDRnpl P0089 NDRsig (DDECOSPL)

< -20 % > 20 % > 10 s

60 s 5s

The pump control module and the fuel pump must be active.

The current operating state must not be initial fueling.

Fault Codes that disable P0089, P062A, P0627, P2542, P2541, P008A (ndr) or P008B (ndr) P008B, P008A, P025C

Fuel Pressure System (low) low pressure DSKVNDmax P2542 sensor DSKVNDmin P2541

Out of range check

FLPS Voltage (1162 KPa)

> 4.75 v

Ignition switch -

On

Out of range check

FLPS Voltage (33 KPa)

< 0.2 v

Battery voltage -

> 10.5 v

for

> 0.6 s

(GGDSND)

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Page 55 of 173

0.6 s

2 Drive Cycles

Fuel System Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

FRPS high input DSKVmax P0193 FRPS low input DSKVmin P0192

Out of range check Out of range check

DSKVSSig P0191 (GGDSKV)

Signal Stuck Check

FRPS Voltage (26.0 MPa) FRPS Voltage (0.0 MPa) For Monitors the voltage over a number of injection cycles. If the voltage deviation does not exceed a threshold then a stuck sensor is declared.

Threshold Value

Time Req.

MIL illum.

On > 10.5 v

0.6 s

2 Drive Cycles

Engine speed Unfiltered rail pressure injected fuel mass mean voltage rail pressure

120 rpm < nmot < 4520 rpm > 3 MPa >5% < 4.5 v

2s

Ignition switch Battery voltage -

On > 10.5 v

0.6 s

Secondary Parameters

Enable Conditions

Ignition switch Battery voltage -

Fuel Pressure Sensor (high)

Fuel Rail Temperature TFUEL high input TFUELEmax TFUEL low input TFUELEmin (GGTFUEL) TFUELRmax TFUELRmin

P0183 P0182

Out of range check Out of range check

P0181 P0181

Out of range check Out of range check

TFUELRnpl P0181

Actual fuel rail temperature is continuously compared against modeled temperature

> 4.80 v < 0.2 v > 0.6 s < 0.049 V For 2 s

TFUEL Voltage (0 °C ) > 4.92 v TFUEL Voltage (143 °C) < 0.15 v for >2s TFUEL Temp > 140.25 °C TFUEL Temp < -45 °C for 10 s If the temperature difference is > below or above threshold npl or sig TFUELQRCMX °C faults are set

10 s

(table) < TFUELQRCMN °C (table)

TFUELRsig P0181 (DPLTFUEL) for

> 10 s

Fuel Level Sender FSTESsig P2065 FSTEsig P0460 (DFSTTDFP) Low Fuel TANKLnpl P131A Level (DTANKL)

CAN Signal check

Fuel Level check

Checks for quality factor for CAN fuel level signal If the fuel level is below 2 liters then this flag is set if there is a fault for fuel rail pressure control or idle speed control or high-pressure start or uhego / hego sensor or fuelling adaptions or misfire or boost pressure control

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Ignition Switch -

0.1 s

Battery voltage -

> 10.5 v

Ignition Switch Battery voltage -

On > 10.5 v

Jaguar Land Rover Limited

Page 56 of 173

0.2 s

No

Fuel System Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Vehicle speed

>= 6.2 mph

10 s

No

Fuel Level Sender Rationality Check FSTRmax P0461 A modelled value of fuel tank level is Fuel level signal 1 stuck compared to the measured value Level change during time to and the difference between the two consume 5 l, when the integrated is integrated. difference between the modelled and measured fuel levels has exceeded 14 l.

If the integrated difference exceeds 14 litres, then a fault is suspected with one of the sensor signals FSTRSmax P2066 (DFSTTDFP)

If one of the level signals then Fuel level signal 2 stuck changes by less than 0.1 litres Level change during time to during the time it takes the consume 5 l, when the integrated integrated difference to change by difference between the modelled an additional 5.0 litres, then a fault is and measured fuel levels has detected. exceeded 14 l.

< 0.1 l

< 0.1 l

TFUELQRCMX - max. diagnosis threshold (model tolerance) Rationality check fuel temperature sensor P0087/P0088 - Fuel Rail/System Pressure input x Model Quality 0 1 3 output w °C 60 45 60 TFUELQRCMN - min. diagnosis threshold (model tolerance) Rationality check fuel temperature sensor P0087/P0088 - Fuel Rail/System Pressure input x Model Quality 0 1 3 output w °C 30 20.3 30

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Page 57 of 173

Fuel Injector Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

0.5 s

2 Drive Cycles

Fuel Injectors Short circuit to battery (max error) Monitor checks voltages of control or Short circuit to ground (min error) signals within the powerstage P0265 of the HDEV power stage high-side controlling the fuel injector and compares these with the expected P0268 voltage levels during the injection P0271 cycle.

P0261 Short circuit to battery (max error) Tests for short circuit to battery or or Short circuit to ground (min error) short circuit to ground of the Low P0264 of the HDEV power stage low-side Side Drive circuit of fuel injector

cyl 1

HDEVH_MAX/MIN_0 P0262

cyl 2

HDEVH_MAX/MIN_3

cyl 3

HDEVH_MAX/MIN_1

cyl 4

HDEVH_MAX/MIN_2

cyl 1

HDEVL_MAX/MIN_0

cyl 2

HDEVL_MAX/MIN_3

cyl 3

HDEVL_MAX/MIN_1 P0267

cyl 4

HDEVL_MAX/MIN_2 P0270

cyl 4

HDEVH_NPL_0 P02EE Short circuit between high-side and The resistance between the high low-side of the HDEV power stage side and low side of the injector is HDEVH_NPL_3 P02EF (high-side non plausible error) below a threshold. This can be caused by a short circuit between HDEVH_NPL_1 P02F0 the pins or a failed injector.

HDEVH_NPL_2 P02F1

cyl 1

HDEVL_NPL_0 P02EE

cyl 1 cyl 2 cyl 3

cyl 2 cyl 3 cyl 4

Battery voltage -

> 10.5 v

Booster time-out of the HDEV Monitor checks voltages of control power stage (low-side non plausible signals within the powerstage HDEVL_NPL_3 P02EF error) controlling the fuel injector and compares these with the expected HDEVL_NPL_1 P02F0 voltage levels during the injection HDEVL_NPL_2 P02F1 process Booster time fault, the DC/DC converter did not build up the required voltage in

cyl 1

HDEVL_SIG_0 P0201

cyl 2

HDEVL_SIG_3 P0202

cyl 3

HDEVL_SIG_1 P0203

cyl 4

Engine started and running.

HDEVL_SIG_2 P0204

Checks whether the Low Side drive Monitor checks voltages of control is connected to the fuel injector signals within the powerstage controlling the fuel injector and compares these with the expected voltage levels during the injection process

(INJVLVPS_DIA)

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Fuel Injector Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

HDEVK_MIN P0200

High Pressure Injection Valve Communication check

Fault is set if SPI communication min error reported

HDEVK_NPL P0200

High Pressure Injection Valve Communication check

Fault is set if SPI communication plausibility error reported

HDEVK_SIG P0200

High Pressure Injection Valve Communication Signal Failure

No signal detected

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Ignition switch -

On

0.5 s

Battery voltage -

> 10.5 v

2 Drive Cycles

Fuel Injectors (cont) Power stage communication

Ignition Coil Drives cyl 1

IgnClPsOpenLoad0 P0351

cyl 2

IgnClPsOpenLoad3 P0352

cyl 3

IgnClPsOpenLoad1 P0353

cyl 4

IgnClPsOpenLoad2 P0354

cyl 1

IgnClPsShCirBatt0 P2301

cyl 2

IgnClPsShCirBatt3 P2304

cyl 3

IgnClPsShCirBatt1 P2307

cyl 4

IgnClPsShCirBatt2 P2310

cyl 1

IgnClPsShCirGnd0 P2300

cyl 2

IgnClPsShCirGnd3 P2303

cyl 3

IgnClPsShCirGnd1 P2306

cyl 4

IgnClPsShCirGnd2 P2309 IgnClPsDevIdentErr1 P06D1 IgnClPsDevSpiErr1 P0350

Open load (signal error) of IgnClPs Monitor reads the voltage of the power stage ECM Terminal connected to the coil igniter and compares this with an expected voltage profile. The signal is diagnosed with respect to open circuit, Short circuit to battery and short circuit to ground Short circuit to battery (max error) Monitor reads the voltage of the of the IgnClPs power stage ECM Terminal connected to the coil igniter and compares this with an expected voltage profile. The signal is diagnosed with respect to open circuit, Short circuit to battery and short circuit to ground Short circuit to ground (min error) of Monitor reads the voltage of the the IgnClPs power stageOpen load ECM Terminal connected to the coil (signal error) of IgnClPs power igniter and compares this with an stage expected voltage profile. The signal is diagnosed with respect to open circuit, Short circuit to battery and short circuit to ground SPI Communication error of the Encoded bit wise device IgnClPs power stage communication signal not received Identification of IC error of the Encoded bit wise device IgnClPs power stage identification not verified

0.1 s

Engine started and running.

Battery voltage -

> 10.5 v

(IGNCLPS_DIA)

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Page 59 of 173

7.

UHEGO Sensor Monitoring

7.1.

Fault Codes P0606 - Control Module Processor - fault in evaluation IC of LSU P00D1 - HO2S Heater Control Circuit Range/Performance (Bank 1, Sensor 1) P0135 - O2 Sensor Heater Circuit (Bank 1, Sensor 1) P2231 - O2 Sensor Signal Circuit Shorted to Heater Circuit (Bank 1, Sensor 1) P0131 - O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1) P0132 - O2 Sensor Circuit High Voltage (Bank 1, Sensor 1) P2626 - O2 Sensor Positive Current Trim Circuit Open (Bank 1, Sensor 1) P2237 - O2 Sensor Positive Current Control Circuit Open (Bank 1, Sensor 1) P2243 - O2 Sensor Reference Voltage Circuit Open (Bank 1, Sensor 1) P2251 - O2 Sensor Negative Current Control Circuit Open (Bank 1, Sensor 1) P0134 - O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1) P0133 - O2 Sensor Circuit Slow Response (Bank 1, Sensor 1)

7.2.

System Overview The diagnosis of the Upstream UHEGO sensor consists of the analysis of all the components that are required to produce a valid fueling signal. It is split into two groups, heater and sensor signal diagnosis, these being split further into circuit and performance diagnosis. Circuit tests are continuously performed whereas performance checks run once per drive cycle.

7.3.

‘UHEGO Sensor Ready’ Conditions UHEGO sensor ready conditions are set once the Nernst cell resistance check confirms that the sensor temperature is above 685 degC. This check is made in combination with the UHEGO sensor heater control and diagnostics. Any failure in the heater control or sensor diagnostics will set the UHEGO ready flag to ‘not ready’ and the failure faults declared.

7.4.

Sensor Heater Control The main task of the heater control is to bring the oxygen sensor to its optimum operation temperature as soon as possible and to operate it at a constant ceramic temperature independently from ambient conditions allowing exact lambda control. The heater control utilizes a fixed 10 ms PWM voltage signal which is applied in controlled ‘bursts’ yielding an ‘effective heater voltage’ and heater power.

Post start, condensation water can accumulate in a cold exhaust gas system. If this water was to hit the hot sensor ceramic, it could damage the sensor. In order to avoid this, the sensor is operated with reduced heater power during ‘dew point’ conditions.

As soon as dew point end is reached and engine temperature is high enough, the effective heater voltage is stepped up. The step height depends on the exhaust gas temperature at the sensor position. At lower temperatures the step height is reduced to

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Page 60 of 173

prevent high thermal stress. Subsequently the heater voltage is raised in the form of a ramp until it reaches its maximum value.

This maximum value is maintained for a period dependent upon start temperature after which heater voltage is controlled dependent upon the measured sensor temperature and exhaust mass flow.

7.4.1. Valid sensor resistance has been measured During the heater control process the ceramics resistance is being measured and if the ‘Valid sensor resistance has been measured’ flag is set, then a temperature conversion is made. This temperature can then be used for the ‘UHEGO Sensor Ready’ declaration. A valid resistance is one in which no faults in the sensor have been determined and no trimming control of the sensor is being performed. Trimming control is a process where an internal ECU reference resistance is used to compensate the Nernst cell resistance for any ageing effects.

7.4.2. Dew point assessment Condensate is the result of the high water content of the exhaust gas condensing on the cold surfaces on or in the exhaust system. The amount of condensate is influenced by the temperature differential of the cold surfaces of the exhaust system and the exhaust gas. Surface temperatures are influenced by start temperature, ambient temperature, engine shut down time, stop temperatures and engine operational conditions prior to stopping. Exhaust temperature conditions are mainly affected by start and operational conditions. A model is formed introducing these factors and predicts when the temperature rise of the exhaust pipe surfaces close to the sensor position are sufficiently high enough that ‘Dew point conditions’ are passed. The need for fast introduction of sensor readiness and fuel control coupled with the protection of the sensor for warranty costs means that a highly accurate working model is required.

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7.5.

Heater Diagnostics 7.5.1. Heater Powerstage/control circuit analysis (P0606) Fault recognition, read-out and storage of the power stage fault information is done within the Powerstage hardware. Fault verification and OBD-fault storage is done within the EMS software. This is performed by observing the fault status information placed in an error-trace-buffer. If a fault has been signaled a counter is activated which has been set with a non-calibrateable time (300 ms). After this time has elapsed, a verification test pulse is initiated in order to confirm the fault. One calculation raster later (100 ms) the verification check is performed. If, during the verification check, the same fault is recognized, the fault is considered to be verified. Faults which cannot be definitely detected are neglected.

7.5.2. Heater Control Diagnosis (P00D1 and P0135) - Two Sensor Systems The diagnosis of closed-loop heating control monitors the calibration resistor and the duty cycle for heating control of the oxygen sensor. Three error states can exist, signal error, signal plausibility (P00D1) and signal max (P0135). Signal error compares the measurement of the resistance compensation with a threshold. The signal compensation is determined by measuring the internal calibration resistance and comparing that with its known value and applying an offset. If the difference exceeds a threshold for a set period of time then the Nernst resistance measurement can no longer be considered reliable and a fault is declared. Signal plausibility is defined as the desired temperature of the ceramic not being reached during control operation. If the heater control PWM signal is still controlling high i.e. applying heating current to the heater, and the temperature does not reach a desired usable threshold within a time period then a max fault is set.

7.5.3. Heater Control Diagnosis (P00D1) – Three Sensor Systems The diagnosis of closed-loop heating control monitors the duty cycle for heating control of the oxygen sensor. Faults are diagnosed under three different operational conditions. Initially, after engine start if the temperature of the ceramic has not reach a temperature threshold in a set time period a fault is declared (plausibility after start). After this period an observation of the ceramic temperature and heater duty cycle is made. If the heater duty cycle exceeds a threshold for a period of time and the ceramic temperature is below a threshold (i.e. in sufficiently heated) a fault is declared (Plausibility normal running). Finally, if the ceramic temperature is below a threshold and the modeled exhaust gas temperature is above a threshold for a period a low temperature plausibility fault is declared.

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7.5.4. Heater Influence on Nernst Cell (P2231) When the heater is switched on or off it can cause periodic disturbances in the O2 signal. If these disturbances become too large, the signal can no longer be used and an error is set.

7.6.

Signal Diagnostics 7.6.1. Integrated Circuit (IC) Electrical monitoring The IC diagnosis for the UHEGO detects electrical errors on the signal lines UN (Nernst voltage), VM (virtual ground), IA (compensation line) and IP (pump line). These electric errors can be caused by short circuits to battery voltage, to ground or by line interruptions.

P0131, P0132 Short to earth, Short to battery O2 Sensor Circuit (Bank 1 Sensor 1) Short circuits are detected by self-diagnosis based on voltage comparators integrated in every connection pin. In Three Sensor Systems the calibration resistor is measured and a RI valid/invalid flag set. This is done by comparing the resistance of the Nernst cell and the calibration resistance. If this is above a threshold a ‘RI Invalid flag’ is set and a fault declared.

P2626 Open circuit detected on IA (calibrating line) O2 Sensor Circuit (Bank 1 Sensor 1) The combination of the trimming resistor in the sensor connector and the calibration resistor in the ECU assures that the pump current op amp will produce the correct sensor characteristic. If a line break is present in the calibration line and pump current is present then the amplifier voltage output will be high. To ensure that there is pump current present then lambda conditions cannot be stoichiometric. For diagnosis consistency overrun/fuel cut off conditions are required (i.e. lean fuelling). As a further secondary condition, the exhaust gas temperature must be within a preset range.

P2237 Open circuit detected at IP line (pump current line) O2 Circuit (Bank 1 Sensor 1)

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If the pump current line is broken then the amplifier will see a zero pump current condition and its output will be 1.5 V. If this condition exists for 3 seconds then three methods are used to diagnose such a condition. 

If non-stoichiometric fuelling is demanded and the amplifier output still indicates a stoichiometric 1.5 V output then an air mass integration is executed. If this integrated air mass exceeds a limit then a fault is diagnosed. This air mass count will be reset if the output voltage deviates outside 1.5 V. The air mass count will suspend if a stoichiometric fuelling demand is requested for less than a period, demands for greater then that period result in an air mass count reset.



If the observed output indicates a stoichiometric fuelling (1.5 V) and stoichiometric fuelling is demanded then the response to an active fuelling change is made. This can either be through normal operation when the fuelling controller is observed to exceed a threshold or through the request of a forced fuelling step. If during this fuelling change the voltage output is still 1.5 V then a fault is diagnosed.



If, during an overrun fuel cut event the voltage has not moved away from 1.5 V after a period of time a fault is diagnosed.

P2243 Line interruption of sensor line UN (Nernst Cell Voltage) O2 Circuit (Bank 1 Sensor 1) If the UN line is broken then the sensor resistance will become implausibly high. This will invoke a reaction from the heater control to increase its heat output. This will have negligible effect upon the sensor resistance and after the heating cycle, the sensor voltage will converge to 0 or 5 V. If these conditions are met then a line interruption of the UN line fault is diagnosed.

P2251 Line interruption of sensor line VM (Virtual Ground) O2 Circuit (Bank 1 Sensor 1) If the VM line is broken the sensor resistance will also become implausibly high. Again this will invoke a reaction from the heater and it will begin its heating cycle. Following this the signal voltage will be set at 1.5 V, as the pump current cannot discharge down the VM line. If these conditions are met then a line interruption of the VM line fault is diagnosed.

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7.6.2. UHEGO Signal Diagnostics – System Flowchart

Fuel Cut off

Yes

Exhaust temp>750 degC

Yes

Voltage >4.8 for 2 s

λ demand ≠1

Yes

Air mass >0.2kg

Yes

P2626

UHEGO Sensor ready Engine started and running Battery voltage 10.7 v ~ 16.1 v Yes Yes

Voltage 1.49v~1.51v

Yes

Yes

Fuelling controller>0.1

Yes

lambda modulation amplitude >0.02

P2237

Yes Sensor voltage

Conditions met

Fuel Cut Off for 5s

Yes

Yes

Conditions for 5s

Yes

Yes

P2251

Yes Sensor resistance>950 ohm

Sensor resistance

Yes Voltage >4.7v or <0.2v for 1s

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Yes

Yes

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7.6.3. Sensor Dynamics 7.6.3.1.

Voltage diagnosis P0134

Checks the output voltage of the UHEGO controller for plausibility. In general the output voltages are considerably lower at a value for lambda that is near to 1 than the ‘in air’ voltage. Such a fault can occur if the lambda sensor – although electrically connected - is not fitted or not fitted properly in the exhaust-system branch. The diagnostic compares the sensor voltage to ‘in air’ voltage threshold.

7.6.3.2.

Sensor response P0133

Slow lambda sensors may lead to increased exhaust emissions or corrupt OBD monitors which make use of the lambda sensor signal. OBD legislation requires that a fault code be set if the slowing of the lambda sensor increases exhaust emissions beyond the OBD limits or deteriorates the performance of OBD monitors. The function uses intrusive step-changes of the injected fuel quantity (fr). When such an event occurs, the measured lambda signal is compared to the expected signal. Starting with the reaction to the fuel step, the area between the inverted lambda signal and a horizontal line through a start value is determined for both the expected (1/λexpect) and the measured signal (1/λmeas), and the quotient between measured and expected area is computed. This start value is defined as a quantity of signal change following the detection of the change in signal (x) and the period is the same calibrated time. The slower the lambda sensor is, the smaller the area and thus the smaller that the quotient will be.

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x

x

Ameas

Ratio=

Ameas Aexpect

Aexpect

Ameas Aexpect

The actual analysis occurs over a number of fuel steps to increase accuracy and robustness. The number of fuel steps depends upon the results of the ratio check. If the ratio is large and above a threshold then the sensor is acting normally and the test sequence ended. If the ratio is below the threshold then another fuel step is requested and a ratio decision made. This continues until a maximum number of steps is reached. If the diagnostic calls for more fuel steps the actual decision is made on the average of these ratios divided by the number of steps. Before the analysis begins a certain number of entrance conditions need to be satisfied to ensure that a reliable result is obtained. This is a non-continuous diagnostic that will attempt to run during a drive cycle whenever the entry conditions are met until a decision has been made. The monitor will not then operate again until the next drive cycle. The process is shown in the following flowchart.

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7.6.4. UHEGO Sensor Dynamics – System Flowchart and Tables Entrance Conditions

Conditions met

UHEGO Sensor ready.

Engine started and running .

Closed loop Fueling active and Stoichiometric fueling requested.

Valid sensor resistance has been measured and ceramics temperature measured from internal resistance deviates from the setpoint temperature (780 degC) by not more than 65 K. Battery voltage - 10.7 v < vbatt < 16. 1v.

Intake to exhaust gas scavenge flow ratio (1 = 0 (modeled)). < 1.02.

Engine temperature - > 65.3 deg C. Relative air charge - 10.008% < rl < 120.000 %.

Change in relative air charge - 7.992 %.

Engine speed - 1240 rpm < nmot < 2520 rpm.

Transport time of sensor - 0.04 s < t < 0.22 s and Rate of change of transport time of sensor - < 0.05 for 0.15 s.

Condition all injection valves are activated, two camshaft revolutions delayed after fuel cutoff - > 2 revs.

Bed temperature of main catalyst (modeled) - 400 degC. Purge - not active.

Yes

Yes

Apply fuel step Count max time for fuel step Count wait period between fuel step

Calculate response areas and ratio No. steps =5

Calculate average of area ratio’s

No

Yes

Increment IUMPR

Test Passed End

Ratio/no of steps <0.15

Yes No No of steps = 5

Yes P0133

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Oxygen Sensor Monitoring Component/System

Fault Code

Oxygen Sensors Upstream (UHEGO) Sensor dynamics slow response DYLSUmin P0133

(DDYLSU)

Malfunction Strategy Description

Malfunction Criteria

Measures response of sensor to induced fuelling shifts

Integrated response rate of expected signal compared with Integrated response rate of measured signal over a maximum number of steps.

Threshold Value

< 0.05 3 steps

Secondary Parameters

Enable Conditions

Time Req

MIL illum

UHEGO Sensor ready Closed loop Fueling active and Stoichiometric fueling requested.

See ‘catalyst Monitoring’

10 s

2 Drive Cycles

Valid sensor resistance has been measured.

Engine started and running.

Battery voltage Intake to exhaust gas scavenge flow ratio (1 = 0 (modeled)) Engine temperature Relative air charge Change in relative air charge Engine speed Transport time of sensor And Rate of change of transport time of sensor for Condition all injection valves are activated, two camshaft revolutions delayed after fuel cutoff Bed temperature of main catalyst (modeled) Purge -

See ‘catalyst Monitoring’ Condition: RI Valid flag set (see Electrical monitor IC ‘LSUKSmax P0132’) 10.7 v < vbatt < 16. 1 v < 1.02 > 65.3 °C 10 % < rl < 150 % 8 % in 0.5 s 1240 rpm < nmot < 2520 rpm 0.06 s < zlrs_w < 0.26 s < 0.22 s 0.15 s

> 2 revs tkivkm > 400 °C not active

Fault codes that disable P0133 P0496, P0497, P2091, P2090, P0013, P000B, P0014, P2089, P2088, P0010, P000A, P0011, P2231, P0032, P0031, P0030, P00D1, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131 P2243, P2251, P2096 (Umax), P2097 (Umin), P2096 (Unpl), P2097 (Usig), P0134, P0300

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Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Malfunction Criteria

Oxygen Sensors Upstream (UHEGO) Diagnosis of Heater HSVmin P00D1 Sensor temperature plausibility – at If the sensor temperature has not start. reached an acceptable temperature in fixed period a fault is declared

Threshold Value

< 720 °C after 70 s

(DHRLSU)

Sensor temperature plausibility demand – Normal running

Sensor temperature plausibility – Normal running low temperature diagnosis

If the temperature of the ceramic of the LSU is below a threshold and the PWM demand to the heater circuit is above a threshold for an unacceptable period of time a fault is diagnosed.

If the temperature of the ceramic of the LSU is below a threshold but the modeled exhaust gas temperature is above a threshold then a low temperature fault is declared

< 720 °C > 90 % for > 60 s

< 640 °C > 450 °C for 10 s

Secondary Parameters

Enable Conditions

Time Req.

UHEGO Sensor ready Battery voltage Engine Speed -

See ‘catalyst Monitoring’ 10.7 v < vbatt < 16. 1 v Engine started and running.

70 s

Engine temperature at start Sensor heater ready for operation Sensor Dew Point ended Valid sensor resistance has been measured -

> -9.75 °C

Condition all injection valves are activated, two camshaft revolutions delayed after fuel cutoff UHEGO Sensor ready Battery voltage Engine Speed Sensor heater ready for operation Sensor Dew Point ended Valid sensor resistance has been measured Not in fuel cut for Valid modeled exhaust temperature (tavso) UHEGO Sensor ready Battery voltage Engine Speed Sensor heater ready for operation Sensor Dew Point ended Valid sensor resistance has been measured Not in fuel cut for Valid modeled exhaust temperature Fault codes that disable P00D1

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2 Drive Cycles

Condition: RI Valid flag set (see Electrical monitor IC ‘LSUKSmax P0132’)

> 2 revs See ‘catalyst Monitoring’ 10.7 v < vbatt < 16. 1 v Engine started and running.

60 s

Condition: RI Valid flag set (see Electrical monitor IC ‘LSUKSmax P0132’) 50 s > 600 °C See ‘catalyst Monitoring’ 10.7 v < vbatt < 16. 1 v Engine started and running.

10 s

Condition: RI Valid flag set (see Electrical monitor IC ‘LSUKSmax P0132’) 50 s P0032, P0031, P0030, P0132, P0131, P2243, P2251, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P0300, P2237

Page 70 of 173

MIL illum.

Oxygen Sensor Monitoring Component/System Oxygen Sensors Upstream (UHEGO) Heater control HSVEmax circuit HSVEmin HSVEsig (DHRLSUE) Diagnosis of HELSUsig influence of (DHELSU) heater on nernst cell

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

P0032 P0031 P0030

Short to battery Short to ground Open circuit

P2231

UHEGO current oscillation implausible – heater switching can influence the sensor signal by increasing the rate of change of sensor current. If the disturbance is to big then a fault is declared.

Time Req

MIL illum

Duty cycle for sensor heater Duty cycle for sensor heater No Duty cycle

> 97 % <4%

Battery voltage Engine Speed -

10.7 v < vbatt < 16.1 v Cranking.

10 s

2 Drive Cycles

Rate of change of sensor current

> 190 µA

UHEGO Sensor ready Engine Speed Battery voltage Relative load -

See ‘catalyst Monitoring’ Engine started and running.

10.7 v < vbatt < 16.1 v > 30 %.

15 s

Engine speed -

< 2700 rpm

Exhaust gas temperature in front of tavvkm < 800 °C pre-catalyst out of model Duty cycle for lambda sensor 20% < dc < 80 % heater Closed loop Fueling active and Stoichiometric fueling requested =1 Lambda actual value between 0.95 < λ < 1.05 Condition all injection valves are activated, two camshaft revolutions delayed after fuel cutoff > 2 revs Fault codes that disable P2231 P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig), P0300

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Oxygen Sensor Monitoring Component/System

Fault Code

Oxygen Sensors Upstream (UHEGO) Voltage diagnosis ULSUnpl P0134 UHEGO (DULSU)

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Checks the output voltage of the If the controller voltage is outside a Acceptable UHEGO Sensor ready See ‘Catalyst Monitoring’ UHEGO controller for plausibility defined range then a plausibility range Engine started and running. i.e. the sensor is fitted correctly and fault raised 3.7 v ~ 4.8 v Condition all injection valves are > 2 revs. exposed to the exhaust gas flow. activated, two camshaft revolutions delayed after fuel cutoff – Fuel tank not empty or reserve.

Required lambda referred to lambda sensor fitting location < 1.6.

Fault codes that disable P0134 P2626, P00D1, P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0032, P0031, P0030, P0132, P0131, P2243, P2251, P064D (Umax), P064D (min), P064D (Unpl), P064D (Usig)

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Time Req

MIL illum

10 s

2 Drive Cycles

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Malfunction Criteria

Oxygen Sensors Upstream (UHEGO) Electrical LSUKSmax P0132 monitor IC

Short to battery LSU Corective voltage or or Monitoring of the calibration resistor If the difference between the Nernst (RI) in the ECU for plausibility: resistance and the calibration (Condition: RI valid / Invalid flag) resistance is above a threshold for a fixed period a fault is declared.

LSUKSmin P0131 Short to ground Power stage internal check LSUIAsig P2626 Sensor voltage Open circuit detected at IA (calibrating line) for LSUIPmax P2237

Open circuit detected at IP line (pump current line)

LSUIPnpl P2237

LSUIPsig P2237

Threshold Value

< 0.1 v

LSUVMsig P2251 Line interruption of sensor line VM (Virtual Ground)

Sensor signal voltage whilst and implausibly high resistance condition exist Short to Vbatt Short to ground Condition communication error of SPI interface to evaluation IC Condition write error at INIT register of evaluation IC of LSU

ICLSUmax P064D ICLSUmin ICLSUnpl ICLSUsig (DICLSU)

Internal IC fault of UHEGO

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On 10.7 v < vbatt < 16. 1 v

0.2 s

2 Drive Cycles

10.7 v < vbatt < 16.1 v

3s

Ignition Battery voltage -

> 4.8 v >2s

Battery voltage In fuel cut.

Exhaust temperature (tavvkm) UHEGO Sensor ready Engine Speed Battery voltage -

Fault codes that disable P2237 Sensor signal voltage high or low whilst implausibly high resistance condition exist

MIL illum.

Enable Conditions

> 15 ohm for >2s

During λ≠ 1 desired conditions 1.49v ~ 1.51v voltage indicates λ= 1 for an 0.2 kg accumulated air flow mass or or If the sensor stays within λ= 1 limits during a forced fueling change 1.49v ~ 1.51v (lambda controller output > 0.1 observation) or or If the sensor stays within λ= 1 limits 1.49v ~ 1.51v during overrun/fuel cut for a time for period >5s

LSUUNsig P2243 Line interruption of sensor line UN (Nernst Cell Voltage)

Time Req.

Secondary Parameters

< 750 °C See ‘catalyst Monitoring’ Engine started and running.

10.7 v < vbatt < 16.1 v

5s

P0496, P0133, P00D1 1s

> 4.7 v or < 0.2 v For 1 s > 950 ohm 1.47v ~ 1.53v for 5 s > 950 ohm

5s

0.2 s 10 s

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7.7.

Drive Cycle Information Oxygen Sensor Monitoring, Drive the vehicle until the engine is fully warm (greater than +65 deg C), the following driving must consist of:  driving the vehicle in a steady throttle condition at a road speed between 40-50 mph for a duration of 2 min  two idle periods of at least 30 second durations each with the air flow between 4 and 13.5 grams per second  a vehicle deceleration with a closed throttle (fully released) for a duration greater than 3 seconds.

Oxygen Sensor Heater Monitor, Start the engine from cold and allow to idle for at least 3 minutes.

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8.

HEGO Sensor Monitoring – Two Sensor Systems

8.1.

Fault Codes P0036 - HO2S Heater Control Circuit (Bank 1, Sensor 2) P0037 - HO2S Heater Control Circuit Low (Bank 1, Sensor 2) P0038 - HO2S Heater Control Circuit High (Bank 1, Sensor 2) P0054 - HO2S Heater Resistance (Bank 1, Sensor 2) P0138 - O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) P0137 - O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) P0136 - O2 Sensor Circuit (Bank 1, Sensor 2) P0141 - O2 Sensor Heater Circuit (Bank 1, Sensor 2) P013A - O2 Sensor Slow Response - Rich to Lean (Bank 1 and Sensor 2) P013E - O2 Sensor Delayed Response - Rich to Lean (Bank 1, Sensor 2) P0140 - O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2) P0139 - O2 Sensor Circuit Slow Response (Bank 1, Sensor 2)

8.2.

System Overview As for the UHEGO sensor, the HEGO downstream sensor diagnostic consists of the analysis of all the components that are required to produce a valid fueling signal and is split into two groups, heater and sensor signal diagnosis. Again, this can be split further into circuit and performance diagnosis. Circuit tests are continuously performed whereas performance checks run once per drive cycle.

8.3.

‘HEGO Sensor Ready’ Conditions Before the sensor is classified as ready for use several conditions have to be passed. First the sensor has to be up to temperature and temperature control must be active. This is explained in section 9.4 Sensor Heater Control. The second is to ensure that the sensor is indicating plausible voltages. The voltage check looks to see if sensor output departs from the voltage band around 0.45 V (defined by upper and lower voltages 0.4 V ~ 0.6 V, when the sensor is not deemed ready) but is lower than an absolute maximum 1.08 V. Because of the electrical circuit in the ECU, leaving the 0.45 V band means that the internal resistance of the Nernst cell has fallen below a certain threshold indicating that the ceramic temperature is sufficiently high.

(Note the actual temperature condition monitor is performed by a resistance check and not a voltage check). At high temperatures the rich branch of the sensor characteristics drops, and the 0.45 V band is then defined as 0.4 V ~ 0.5 V. If the sensor voltage does not leave the 0.45 V band although the sensor is sufficiently heated a sensor fault is assumed. If a signal wire break is not detected then after 20 s the Sensor Ready condition is forced to enable the detection of the fault by means of the oscillation check (P0140 Ageing Monitor – sensor stuck). Any failure in the heater control or sensor diagnostics will set the HEGO ready flag to ‘not ready’ and the fault is declared.

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8.4.

Sensor Heater Control The HEGO sensor heater control acts in a similar method as for the UHEGO sensor. The main difference is that each sensor will operate with different Dew Point models because of the different sensor locations.

8.5.

Heater Diagnostics 8.5.1. Heater power stage monitoring P0036, P0037 and P0038 Fault recognition, read-out and storage of the power stage fault information is done within the Powerstage hardware. Fault verification and OBD-fault storage is done within the EMS software. This is performed by observing the fault status information placed in an error-trace-buffer. If a fault has been signaled a counter is activated which has been set with a 'non-calibrateable' time (300 ms). After this time has elapsed, a verification test pulse is initiated in order to confirm the fault. One calculation raster later (100 ms) the verification check is performed. If, during the verification check, the same fault is recognized, the fault is considered to be verified. Faults which cannot be definitely detected are neglected.

8.5.2. Heater monitoring P0054 There is a correlation between ceramic temperature and internal resistance. With a sensor with defective heating, the ceramic temperature is lower compared to that of a faultless sensor, meaning the internal resistance of the sensor will be higher in comparison. The diagnostic compares the internal resistance of the heater to a threshold. This threshold is dependent on filtered values of exhaust gas temperature, exhaust mass flow and heater power.

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8.5.3. HEGO Heater Monitor – System Flowchart

Internal resistance of the heater is compared to a threshold based upon filtered values of exhaust gas flow, temp and heater power

Sensor resistance Ohm

Exhaust gas mass flow kg/h

Kg/h based filter time constant

Ohm comp

Fail P0054

Exhaust gas Temp degC

time discrete low pass filter

Pass

Resistance threshold map

P0036

Heater Power STD

time discrete low pass filter

Power stage diagnostics

Circuit check

Fail P0037 P0038

Heater electrical and performance check

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8.6.

Signal Diagnostics 8.6.1. Electrical monitoring P0138 Sensor voltage short to battery voltage Sensor voltage stuck high for an implausible period whilst lambda demand is not rich.

P0137 Sensor short to ground If the sensor voltage is below a threshold for a implausible period whilst not in fuel cut or oxygen neutralization, a fault suspicion is raised. Further observations of sensor voltage are made after 3 load pulses. These load pulses are the application of a controlled voltage pulse across the sensor. For the case of a short to ground if the difference between the measured sensor voltage during the load pulse is below a threshold then a fault is confirmed.

P0136 Sensor wire break If the sensor voltage stays between limits for an implausible time then a load pulse is requested. For a wire break if the difference between the measured sensor voltage during the load pulse is above a threshold a fault is confirmed.

P0141 Sensor and heater short circuit If this short circuit exists then a voltage change in the sensor voltage will occur during heater switch off. If this voltage change is greater than a threshold for a number of heater turn off events then a fault is declared.

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8.6.2. HEGO Electrical Monitoring – System Flowchart

Battery voltage > 10.5v Engine started and running HEGO Sensor Ready

Conditions met Yes

>1.08v

<0.06v >3s

Yes

λ demand >1

Yes

Not in Fuel cut

Yes

Load Pulses

Yes

Yes

>5s

Yes

Load Pulses

V < 0.0146v

V>2.8v

Yes

P0138

Yes

P0137

Sensor voltage 0.6~0.4v >3s

>2v for 6 events

Yes

P0136

P0141

Heater turned off

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8.6.3. Sensor dynamics The HEGO dynamic monitoring recognizes a slow oxygen sensor for both response and transient time. Both require that before the diagnosis the sensor be above a rich voltage threshold ensuring that a subsequent rich lean fuel cut event produces a reliable sensor response.

8.6.3.1.

Transient response P013A

Checks for reduction in the transient signal gradient during the fuel cut off event by determining the time it takes for the sensor voltage to pass through a set voltage band. If the time taken for the sensor voltage signal to drop from high to low is above a threshold then a fault is declared.

8.6.3.2.

Delayed response P013E.

Checks for a reduction in the sensor response due to a rich to lean fuel cut event. If the time taken for sensor voltage to drop below lean voltage threshold from the start of the fuel cut is above a threshold then a fault is declared.

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8.6.3.3.

HEGO Sensor Dynamics – System Flowchart

Sensor Voltage

> 0.582 v for 0.2 s

Entry Conditions

Yes

Then in fuel cut

Conditions met

Yes

UHEGO Sensor Ready – see Catalyst Monitor HEGO Sensor ready – see Catalyst Monitor Engine started and running CL A/F control & sub F/B control and stoichiometric fueling requested.

Battery voltage > 10.50 v Exhaust gas temperature > 400 degC Valid sensor resistance has been measured Sensor resistance < 500 ohm Exhaust mass flow > 12 g Rate of change mass flow < 12 kg/h Engine speed - 1400rpm < nmot < 3000rpm Relative air charge - 20% < rl < 30%

Yes

≤0.5 v

Yes Start Timer’s 1 & 2 Start air mass flow count

≤0.2 v

Yes

Stop Timer 1

Timer 1 >2s

Yes

P013A

Timer 2 >5s

Yes

P013E

Yes Air mass flow > 10g Yes ≤0.156 v

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Yes

Stop Timer 2

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8.6.3.4.

Ageing Monitor – sensor stuck P0140

Oscillation check. If the sensor signal permanently remains above or below the desired value for a set period, then a controlled fueling enrichment or lean-off will be called. A max or min fault is declared if the voltage level remains above or below this threshold during the fueling swings for the duration of the test.

8.6.3.5.

Ageing Monitor – sensor not responding P0139

Over run check. During an overrun fuel cut off event a check is made that the sensor signal has fallen below a voltage threshold after a period of time.

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8.6.3.6.

HEGO Sensor Dynamics – System Flowchart and Tables

UHEGO Sensor Ready HEGO Sensor ready Engine started and running CL A/F control & sub F/B control and stoichiometric fueling requested Battery voltage

> 10.50 v

Exhaust gas temperature

> 350degC

Air mass flow

> 30 kg/h

Voltage > 0.635v

Yes

Apply lean fuel shift Does sensor voltage cross 0.625v before fuelling ramp end

Yes Sensor voltage

Conditions met

Voltage < 0.635v

Yes

P0140

Apply rich fuel shift

Yes In fuel cut

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No

Voltage < 0.152v after 5 sec

No

Sensor resistance not high

< 500 ohm

Air mass flow during fuel cut

> 14g

Lambda during fuel cut

> 10

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Conditions met

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Yes

P0139

Page 83 of 173

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Electrical monitoring HEGOS2B1ElecMax P0138

Sensor voltage short to V Batt

HEGOS3B1ElecMax P0144

Malfunction Criteria

Sensor voltage stuck high for implausible period whilst lambda demand is non-rich.

Threshold Value

> 1.9 v for > 0.1 s

Secondary Parameters

Enable Conditions

HEGO Sensors ready Battery voltage Engine Speed -

See ‘catalyst Monitoring’ > 10.7 v Cranking or Engine started and

Time Req.

MIL illum.

5s

2 Drive Cycles

running.

Sensor short to ground HEGOS2B1ElecMin P0137 HEGOS3B1ElecMin P0143

HEGOS2B1ElecSig P0136

Sensor wire break

HEGOS3B1ElecSig P0142

HEGOS2B1ElecNpl P0141 HEGOS3B1ElecNpl P0147 (HEGO_OBDElec)

Sensor and heater short circuit

If the sensor voltage is below a threshold for an implausible period < 0.06 v whilst not in fuel cut or oxygen for neutralization a fault suspicion is >3s raised. Further observations of sensor voltage are made after 3 load pulses. These load pulse are the application of controlled voltage pulse across the sensor. For the case of a short to ground if the 0.01 v difference between the measured sensor voltage during the load pulse is below a threshold then a fault is confirmed.

If the sensor voltage stays between 0.4 v ~ 0.5 v limits for an implausible time then a for load pulse is requested. For a wire >3s break, if the difference between the > 2.80 v load pulse sensor voltage is above a threshold a fault is confirmed.

In addition, if the resistance of the Nernst cell at high exhaust > 600 °C temperatures is implausibly high then a sensor wire break is > 40000 ohm diagnosed .

If this short circuit exists then a >2v voltage change in the sensor for voltage will occur during heater turn 6 events off. If this voltage change is greater than a threshold for a number of heater turn off events then a fault is declared.

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3s

6 events

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Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Oxygen Sensors Downstream (HEGO LSF AND LSH) (con’t) Fault codes that disable P0138, P0038, P0037, P0036 P0136 or P0141 Fault codes that disable P0158, P0058, P0057, P0056 P0156 or P0161 Fault codes that disable P0144, P0044, P0043, P0042 P0142 or P0147 Fault codes that disable P0164, P0064, P0063, P0062 P0162 or P0167

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Time Req.

MIL illum.

Oxygen Sensor Monitoring Component/System

Fault Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Heater power stage monitor HEGOS2B1HtrPsMax P0038 HEGOS2B1HtrPsMin P0037 HEGOS2B1HtrPsSig P0036

Malfunction Strategy Description

Malfunction Criteria

Powerstage transistor voltage check

Threshold Value

Monitors the voltage drop at the power stage transistor during the switching of the PWM heater control expected voltage levels.

Time Req.

MIL illum.

10.7 v < vbatt < 16.1 v Cranking or Engine started and Running.

0.2 s

2 Drive Cycles

> 180 s

5s

Secondary Parameters

Enable Conditions

Battery voltage Engine Speed -

HEGOS3B1HtrPsMax P0044 HEGOS3B1HtrPsMin P0043 HEGOS3B1HtrPsSig P0042

(HEGO_OBDHtrPs) Heater monitoring HEGOS2B1HtgNpl P0054

see There is a correlation between The internal resistance of the ceramic temperature and internal heater is compared to a threshold. resRiThresDHtg_MAP (table) resistance. With a sensor with This threshold is dependent on HEGOS3B1HtgNpl P0055 defective heating, the ceramics filtered values of exhaust gas temperature usually is lower temperature and heater power. If compared to that of a faultless the resistance is higher than this sensor. This means that the threshold then a fault is declared internal resistance of the sensor is higher when compared to a fault free heated sensor.

(HEGO_OBDHtg)

Engine stop time between drive cycles sufficient Intake air temp Engine Speed Battery voltage Modeled Exhaust gas temp at sensor Not in fuel cut.

> -9.75 °C Cranking or Engine started and running.

10.7 v <vbatt < 16.1 v 300 °C < temp < 750 °C

Fault codes that disable P0054 P0038, P0037, P0036 Fault codes that disable P0060 P0058, P0057, P0056 Fault codes that disable P0056 P0044, P0043, P0042 Fault codes that disable P0061 P0064, P0063, P0062

resRiThresDHtg_MAP - Internal resistance threshold for heater performance diagnosis y input x input y output w

°C Ht pwr Ohm

x 0.6 0.7 0.8 0.9 1.0

200 700 700 700 700 700

300 700 700 700 700 700

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400 700 700 700 700 700

500 700 700 700 700 700

550 700 700 700 700 700

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Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Transient response

For sensor 2 (LSF) HEGOS2B1PT1RL P013A Rich to lean

Transient response. Checks for reduction in the transient signal gradient during a rich to lean fueling event.

Malfunction Criteria

Threshold Value

The voltage output of the sensor is filtered and compared with its previous value based upon a fixed time delay. During the fuel cut event the maximum ‘transient response gradient’ is filtered and this converted to a ‘transient response time’. A slow sensor will have a small transient response gradient and a large transient response time. If this transient response time is above a threshold a fault is declared Rich to lean Failure time threshold

(HEGOD_TransDs / HEGOD_RespEvalDs)

> 0.8 s

Secondary Parameters

Enable Conditions

UHEGO Sensor Ready Engine Speed -

See ‘Catalyst Monitor’ Cranking or Engine started and running.

CL A/F control & sub F/B control and stoichiometric fueling requested Battery voltage LSF sensor ready Fuel cut event greater than will inhibit diagnostic for Modeled exhaust gas temperature (tafso) Exhaust massflow (msabS2) Rate of change of exhaust mass flow Engine speed -

Active 10.7 v < vbatt < 16.1 v See ‘Catalyst Monitor’ > 90 s 20 s > 350 °C > 12 kg/h -150 kg/h < ∆ msabS2 < 20 kg/h in 2 s 1000 rpm < nmot < 3000 rpm

Fault codes that disable P013A P2270, P2271

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Time Req.

MIL illum.

3s

2 Drive cycles

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Delayed response

Malfunction Criteria

Threshold Value

Delayed response. Checks for If the time taken for sensor voltage reduction in the sensor response to to pass a threshold from the start of a forced rich to lean fueling event. forced fuel event is above a threshold then a fault is declared.

Secondary Parameters

Enable Conditions

UHEGO Sensor Ready Engine Speed –

See ‘Catalyst Monitor’ Cranking or Engine started and running.

CL A/F control & sub F/B control and stoichiometric fueling requested LSF sensor ready Accumulated exhaust mass gas flow since sensor ready Exhaust gas mass flow Rate of change of gas mass flow -

For sensor 2 (LSF) HEGOS2B1DlyRL P013E Rich to lean

Rich to lean Failure time threshold

Catalyst in rich state prior to forced fuel change – sensor voltage Once diagnosis is requested a lean fueling is set to ensure conditions Temperature in the pre-catalyst Engine speed -

Active See ‘Catalyst Monitor’ > 2 kg 22 kg/h < msabvvk < 160 kg/h -15 kg/h < ∆ msabvvk < 15 kg/h in 2 s > 1.25 v λ > 1.07 450 °C < tkivkm_w < 900 °C 1200 rpm <nmot < 3000 rpm

> 0.6 s

( HEGOD_DlyDs / HEGOD_RespEvalDs) Fault codes that disable P013E P0138, P0137, P0141, P0136, P0054, P0038, P0037, P0036, P2270, P2271, P0496, P0497, P2096 (Umax), P2097 (Umin), P2096 (Unpl), P2097 (Usig), P0133 , P2231, P2626, P0134, P00D1, P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131, P0032, P0031, P0030, P2243, P2251, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig)

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Time Req.

MIL illum.

3s

2 Drive Cycles

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Range Check

HEGOS2B1TarLean P2270 HEGOS2B1TarRich P2271

Range Check. Check the voltage level of the sensor to see if it is stuck high, low or not responding.

Malfunction Criteria

A filtered sensor voltage is compared to its self and compared for its maximum and minimum values. If the max and minimum values do not exceed rich and lean thresholds then the sensor voltage is considered stuck. If a stuck state is suspected then forced lean and rich fueling ramps are applied and sensor reaction observed. A fault is declared if no sensor reaction is observed.

Threshold Value

> 0.71 v < 0.20 v

An additional check is also made during fuel cut events that if the oxygen mass in the catalyst has exceeded calibrated level a lean voltage is seen.

HEGOS3B1TarLean P2274 HEGOS3B1TarRich P2275

> 0.74 v < 0.30 v

Enable Conditions

UHEGO Sensor Ready Engine Speed -

See ‘Catalyst Monitor’ Cranking or Engine started and running.

See ‘Catalyst Monitor’

CL A/F control & sub F/B control and stoichiometric fueling requested LSF sensor ready See ‘Catalyst Monitor’ Accumulated exhaust mass gas > 0.20 kg flow since sensor ready For fuel cut check Battery voltage > 10.7 Oxygen flow since fuel cut > 4000 mg Modeled exhaust gas temperature 450 °C < tafso < 800 °C Lamda at end of fuel cut > 1.50 Fault codes that disable P2270 or P0141, P0138, P0137, P0136, P2271 P0496, P0497, P0038, P0037, P0036, P2177, P2178, P2187, P2188, P0459, P0458, P0444, P0300 LSH sensor ready Accumulated exhaust mass gas flow since sensor ready For fuel cut check Battery voltage Oxygen flow since fuel cut Modeled exhaust gas temperature Lamda at end of fuel cut -

See ‘Catalyst Monitor’ > 0.2 kg

> 10.7 v > 4000 mg 450 °C < tahso < 800 °C > 1.50 P0147, P0144, P0143, P0142, Fault codes that disable P2274 or P0044, P0043, P0042, P2177, P2275 P2178, P2187, P2188, P0497, P0459, P0458, P0444, P0300

(HEGOD_LimDs)

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Secondary Parameters

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Time Req.

MIL illum.

10 s

2 Drive cycles

8.7.

Drive Cycle Information Oxygen Sensor Monitoring, Drive the vehicle until the engine is fully warm (greater than +65 deg C), the following driving must consist of:  driving the vehicle in a steady throttle condition at a road speed between 40-50 mph for a duration of 2 min  two idle periods of at least 30 second durations each with the air flow between 4 and 13.5 grams per second  a vehicle deceleration with a closed throttle (fully released) for a duration greater than 3 seconds.

Oxygen Sensor Heater Monitor, Start the engine from cold and allow to idle for at least 3 minutes.

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9.

HEGO (LSF AND LSH) Sensor Monitoring – Three Sensor Systems

9.1.

Fault Codes P0036 - HO2S Heater Control Circuit (Bank 1, Sensor 2) P0037 - HO2S Heater Control Circuit Low (Bank 1, Sensor 2) P0038 - HO2S Heater Control Circuit High (Bank 1, Sensor 2) P0044 - HO2S Heater Control Circuit High (Bank 1, Sensor 3) P0043 - HO2S Heater Control Circuit Low (Bank 1, Sensor 3) P0042 - HO2S Heater Control Circuit (Bank 1, Sensor 3) P0054 - HO2S Heater Resistance (Bank 1, Sensor 2) P0055 - HO2S Heater Resistance (Bank 1, Sensor 3) P0138 - O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) P0137 - O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) P0136 - O2 Sensor Circuit (Bank 1, Sensor 2) P0144 - O2 Sensor Circuit High Voltage (Bank 1 Sensor 3) P0143 - O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3) P0142 - O2 Sensor Circuit (Bank 1 Sensor 3) P0141 - O2 Sensor Heater Circuit (Bank 1, Sensor 2) P0147 - O2 Sensor Heater Circuit (Bank 1 Sensor 3) P013A - O2 Sensor Slow Response - Rich to Lean (Bank 1 and Sensor 2) P013E - O2 Sensor Delayed Response - Rich to Lean (Bank 1, Sensor 2) P0140 - O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2) P0139 - O2 Sensor Circuit Slow Response (Bank 1, Sensor 2) P2270 - O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 2) P2271 - O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) P2274 - O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 3) P2275 - O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 3)

9.2.

System Overview As for the UHEGO sensor, the HEGO downstream sensor diagnostic consists of the analysis of all the components that are required to produce a valid fueling signal and is split into two groups, heater and sensor signal diagnosis. Again, this can be split further into circuit and performance diagnosis. Circuit tests are continuously performed whereas performance checks run once per drive cycle.

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9.3.

‘HEGO Sensor Ready’ Conditions Before the sensor is classified as ready for use several conditions have to be passed. First the sensor has to be up to temperature and temperature control must be active. This is explained in section 9.4 Sensor Heater Control. The second is to ensure that the sensor is indicating plausible voltages. The voltage check looks to see if sensor output departs from the voltage band around 0.45 V (defined by upper and lower voltages 0.4 V ~ 0.6 V, when the sensor is not deemed ready) but is lower than an absolute maximum 1.08 V. Because of the electrical circuit in the ECU, leaving the 0.45 V band means that the internal resistance of the Nernst cell has fallen below a certain threshold indicating that the ceramic temperature is sufficiently high.

(Note the actual temperature condition monitor is performed by a resistance check and not a voltage check). At high temperatures the rich branch of the sensor characteristics drops, and the 0.45 V band is then defined as 0.4 V ~ 0.5 V. If the sensor voltage does not leave the 0.45 V band although the sensor is sufficiently heated a sensor fault is assumed. If a signal wire break is not detected then after 20 s the Sensor Ready condition is forced to enable the detection of the fault by means of the oscillation check (P0140 Ageing Monitor – sensor stuck). Any failure in the heater control or sensor diagnostics will set the HEGO ready flag to ‘not ready’ and the fault is declared.

9.4.

Sensor Heater Control The HEGO sensor heater control acts in a similar method as for the UHEGO sensor. The main difference is that each sensor will operate with different Dew Point models because of the different sensor locations.

9.5.

Heater Diagnostics 9.5.1. Heater power stage monitoring P0036, P0037, P0038, P0044, P0043 and P0042. Fault recognition, read-out and storage of the power stage fault information is done within the Powerstage hardware. Fault verification and OBD-fault storage is done within the EMS software. This is performed by observing the fault status information placed in an error-trace-buffer. If a fault has been signaled a counter is activated which has been set with a 'non-calibrateable' time (300 ms). After this time has elapsed, a verification test pulse is initiated in order to confirm the fault. One calculation raster later (100 ms) the verification check is performed. If, during the verification check, the same fault is recognized, the fault is considered to be verified. Faults which cannot be definitely detected are neglected.

9.5.2. Heater monitoring P0054 and P0055. There is a correlation between ceramic temperature and internal resistance. With a sensor with defective heating, the ceramic temperature is lower compared to that of a faultless sensor, meaning the internal resistance of the sensor will be higher in comparison. The diagnostic compares the internal resistance of the heater to a threshold. This threshold is dependent on filtered values of exhaust gas temperature, exhaust mass flow and heater power.

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9.5.3. HEGO Heater Monitor – System Flowchart

Internal resistance of the heater is compared to a threshold based upon filtered values of exhaust gas flow, temp and heater power

Sensor resistance Ohm

Exhaust gas mass flow kg/h

Kg/h based filter time constant

Fail

Ohm comp

P0054/P0055

Exhaust gas Temp degC

time discrete low pass filter

Pass

Resistance threshold map

P0036/P0042

Heater Power STD

time discrete low pass filter

Power stage diagnostics

Circuit check

Fail P0037/P0043 P0038/P0044

Heater electrical and performance check

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9.6.

Signal Diagnostics 9.6.1. Electrical monitoring P0138 and P0144 Sensor voltage short to battery voltage Sensor voltage stuck high for an implausible period whilst lambda demand is not rich.

P0137 and P0143 Sensor short to ground If the sensor voltage is below a threshold for a implausible period whilst not in fuel cut or oxygen neutralization, a fault suspicion is raised. Further observations of sensor voltage are made after 3 load pulses. These load pulses are the application of a controlled voltage pulse across the sensor. For the case of a short to ground if the difference between the measured sensor voltage during the load pulse is below a threshold then a fault is confirmed.

P0136 and P0142 Sensor wire break If the sensor voltage stays between limits for an implausible time then a load pulse is requested. For a wire break if the difference between the measured sensor voltage during the load pulse is above a threshold a fault is confirmed.

P0141and P0147 Sensor and heater short circuit If this short circuit exists then a voltage change in the sensor voltage will occur during heater switch off. If this voltage change is greater than a threshold for a number of heater turn off events then a fault is declared.

9.6.2. HEGO Sensor dynamics The HEGO dynamic monitoring recognizes a slow oxygen sensor for both response and transient time. Both require that before the diagnosis the sensor be above a rich voltage threshold ensuring that a subsequent rich lean fuel cut event produces a reliable sensor response.

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9.6.2.1.

Transient response

P013A (LSF Only) The transient response monitor checks the sensor's rate of response whilst reacting to a fuel cut off event.

The voltage output of the sensor is filtered and compared with its previous value based upon a fixed time delay. During the fuel cut event the maximum ‘response gradient’ is filtered and converted to a response time. A slow sensor will have a small response gradient and a large time constant. A correctly acting sensor will have a larger response gradient and a smaller time constant. If this time constant is sufficient to exceed emissions or affect catalyst diagnosis as defined by a threshold then a fault is raised. The monitor will run once per drive cycle.

9.6.2.2.

Delayed response.

P013E (LSF only) The delayed response monitor checks the sensor's ‘time to respond’ reaction to a fueling step change. The actual time taken for a sensor to react to a fueling change is affected by three components, the oxygen storage dynamics of the catalyst, travel time of the exhaust gas and the actual response time of the sensor. The oxygen storage dynamics of the catalyst are modeled based upon oxygen storage capacity and exhaust mass gas flow which will give a catalyst response time for a fueling change. Similarly, the exhaust gas travel time is modeled based upon exhaust gas mass flow. The sum of these times will give the delay to any fueling change that the sensor will be exposed. The subtraction of these two factors from the total time that a fueling change is seen by the sensor, is the actual response time of the sensor. The actual analysis occurs over a number of forced fueling swings in a rich to lean fueling step change, once entrance conditions are met. The final result is filtered from these step changes and if the delay time is sufficient to exceed emissions or affect catalyst diagnosis as defined by a threshold, then a fault is raised. The monitor will run once per drive cycle.

9.6.2.3.

Range or signal stuck

P2270, P2271, P2274 and P2275. The range check or signal stuck diagnostic checks the signal voltage level to see if it is stuck high, stuck low or not responding. During normal operation a normally operating sensor should see high and low voltage levels in response to rich and lean fueling events. A comparison is made to find the maximum or minimum between a filtered sensor voltage and the previous maximum or minimum voltage. This is then compared to thresholds to establish if the sensor voltage has achieved rich or lean readings. If they have not seen rich or lean voltage levels then active fueling ramps are applied. If the sensor voltage does not show rich or lean readings after these fueling ramps, then a fault is diagnosed. In addition, during fuel cut off events of sufficient duration that ensure that each sensor should be reading lean voltage levels, then a voltage comparison is made and faults diagnosed if voltage readings are not showing lean voltage levels.

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9.6.2.4.

Delayed Response – System Flowchart

Entrance Conditions

Entry conditions

UHEGO Sensor Ready - See ‘Catalyst Monitor’ Engine started and running -

Catalyst oxygen level

CL A/F control & sub F/B control and stoichiometric fueling requested Exhaust gas mass flow - 22 kg/h < < 120 kg/h

Oxygen state rich

Rate of change of gas mass flow -+/-5 kg/h

Yes

Engine speed -1120 rpm <nmot< 8760 rpm Catalyst either in rich state prior to forced fuel change LSF sensor voltage>1.25

Apply extra lamda step

Once diagnosis is requested a rich fueling is set to ensure conditions -λ = 1.07 LSF sensor ready See ‘Catalyst Monitor’ Accumulated exhaust mass gas flow since temperature in the pre-catalyst is in the range has exceeded 500 °C < tkivkm_w < 800 °C0.2 kg

Apply diagnosis fuel step

Measure delay time

Gas dynamic delay

Factor gas dynamic delay

Catalyst dynamic delay

Factor gas catalyst dynamic delay

Number of required fuelling steps

Fueling steps complete

Apply rich fuelling step

No

Average sensor response time

P013F

P014B Rich lean failure time

Delay time > threshold

Yes P013E

P014A

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9.6.2.5.

Transient response – System Flowchart Entrance Conditions UHEGO Sensor Ready -See ‘Catalyst Monitor ’ Engine started and running.

Entry conditions

CL A/F control & sub F/B control and stoichiometric fueling requested -Active Battery voltage -> 10.7 V Engine speed -1000 rpm <nmot< 3000 rpm

Sensor Voltage

Filter sensor voltage

LSF sensor readySee ‘Catalyst Monitor’ Modeled exhaust gas temperature > 350 °C

Time step delay Compare filter voltage with previous time step voltage

Exhaust mass flow -> 10.Kg/h Rate of change of gas mass flow -+/-200 kg/h

Calculate response gradient Time step delay Compare gradient with previous time step gradient Determine maximum gradient Minimum sensor voltage for end of diagnosis

Lower voltage threshold

Voltage threshold passed

Yes

Yes P013A

Calculate response time

P014B Rich lean failure time

Delay time > threshold

Yes P014C

P014D

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9.6.2.6.

Range or Signal Stuck – System Flowchart and Tables Entrance Conditions UHEGO Sensor Ready -See ‘Catalyst Monitor’ Engine started and running.

Entry conditions

CL A/F control & sub F/B control and stoichiometric fueling requested -Active LSF sensor ready See ‘Catalyst Monitor’ Accumulated exhaust mass gas flow since sensor ready> 0.2 kg For fuel cut check Battery voltage -11 v Oxygen mass flow in front catalyst -< 4000 mg Modeled exhaust gas temperature -450 °C < < 800 °C lamsoni_w> 1.50

Filter Sensor voltage

Fuel cut

Calculate oxygen mass flow in catalyst

Compare filtered voltage with previous Max or Minimum voltage

Filter Sensor voltage

Voltage High / Low

Compare filtered voltage with previous Max or Minimum voltage

Exhaust mass flow>threshold

Mass flow > limit

Suspect stuck sensor

Apply rich / lean fuelling ramp Voltage High / Low

Lamda > 1.5

Voltage not lean

P2270 P2274

P2271 P2275

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Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Electrical monitoring HEGOS2B1ElecMax P0138

Sensor voltage short to V Batt

HEGOS3B1ElecMax P0144

Malfunction Criteria

Sensor voltage stuck high for implausible period whilst lambda demand is non-rich.

Threshold Value

> 1.9 v for > 0.1 s

Secondary Parameters

Enable Conditions

HEGO Sensors ready Battery voltage Engine Speed -

See ‘catalyst Monitoring’ > 10.7 v Cranking or Engine started and

Time Req.

MIL illum.

5s

2 Drive Cycles

running.

Sensor short to ground HEGOS2B1ElecMin P0137 HEGOS3B1ElecMin P0143

HEGOS2B1ElecSig P0136

Sensor wire break

HEGOS3B1ElecSig P0142

HEGOS2B1ElecNpl P0141 HEGOS3B1ElecNpl P0147 (HEGO_OBDElec)

Sensor and heater short circuit

If the sensor voltage is below a threshold for an implausible period < 0.06 v whilst not in fuel cut or oxygen for neutralization a fault suspicion is >3s raised. Further observations of sensor voltage are made after 3 load pulses. These load pulse are the application of controlled voltage pulse across the sensor. For the case of a short to ground if the 0.01 v difference between the measured sensor voltage during the load pulse is below a threshold then a fault is confirmed.

If the sensor voltage stays between 0.4 v ~ 0.5 v limits for an implausible time then a for load pulse is requested. For a wire >3s break, if the difference between the > 2.80 v load pulse sensor voltage is above a threshold a fault is confirmed.

In addition, if the resistance of the Nernst cell at high exhaust > 600 °C temperatures is implausibly high then a sensor wire break is > 40000 ohm diagnosed .

If this short circuit exists then a >2v voltage change in the sensor for voltage will occur during heater turn 6 events off. If this voltage change is greater than a threshold for a number of heater turn off events then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

3s

6 events

Page 99 of 173

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

Oxygen Sensors Downstream (HEGO LSF AND LSH) (con’t) Fault codes that disable P0138, P0038, P0037, P0036 P0136 or P0141 Fault codes that disable P0158, P0058, P0057, P0056 P0156 or P0161 Fault codes that disable P0144, P0044, P0043, P0042 P0142 or P0147 Fault codes that disable P0164, P0064, P0063, P0062 P0162 or P0167

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 100 of 173

MIL illum.

Oxygen Sensor Monitoring Component/System

Fault Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Heater power stage monitor HEGOS2B1HtrPsMax P0038 HEGOS2B1HtrPsMin P0037 HEGOS2B1HtrPsSig P0036

Malfunction Strategy Description

Malfunction Criteria

Powerstage transistor voltage check

Threshold Value

Monitors the voltage drop at the power stage transistor during the switching of the PWM heater control expected voltage levels.

Time Req.

MIL illum.

10.7 v < vbatt < 16.1 v Cranking or Engine started and Running.

0.2 s

2 Drive Cycles

> 180 s

5s

Secondary Parameters

Enable Conditions

Battery voltage Engine Speed -

HEGOS3B1HtrPsMax P0044 HEGOS3B1HtrPsMin P0043 HEGOS3B1HtrPsSig P0042

(HEGO_OBDHtrPs) Heater monitoring HEGOS2B1HtgNpl P0054

see There is a correlation between The internal resistance of the ceramic temperature and internal heater is compared to a threshold. resRiThresDHtg_MAP (table) resistance. With a sensor with This threshold is dependent on HEGOS3B1HtgNpl P0055 defective heating, the ceramics filtered values of exhaust gas temperature usually is lower temperature and heater power. If compared to that of a faultless the resistance is higher than this sensor. This means that the threshold then a fault is declared internal resistance of the sensor is higher when compared to a fault free heated sensor.

(HEGO_OBDHtg)

Engine stop time between drive cycles sufficient Intake air temp Engine Speed Battery voltage Modeled Exhaust gas temp at sensor Not in fuel cut.

> -9.75 °C Cranking or Engine started and running.

10.7 v <vbatt < 16.1 v 300 °C < temp < 750 °C

Fault codes that disable P0054 P0038, P0037, P0036 Fault codes that disable P0060 P0058, P0057, P0056 Fault codes that disable P0056 P0044, P0043, P0042 Fault codes that disable P0061 P0064, P0063, P0062

resRiThresDHtg_MAP - Internal resistance threshold for heater performance diagnosis y input x input y output w

°C Ht pwr Ohm

x 0.6 0.7 0.8 0.9 1.0

200 700 700 700 700 700

300 700 700 700 700 700

Range Rover Evoque & Land Rover Freelander

400 700 700 700 700 700

500 700 700 700 700 700

550 700 700 700 700 700

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 101 of 173

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Transient response

For sensor 2 (LSF) HEGOS2B1PT1RL P013A Rich to lean

Transient response. Checks for reduction in the transient signal gradient during a rich to lean fueling event.

Malfunction Criteria

Threshold Value

The voltage output of the sensor is filtered and compared with its previous value based upon a fixed time delay. During the fuel cut event the maximum ‘transient response gradient’ is filtered and this converted to a ‘transient response time’. A slow sensor will have a small transient response gradient and a large transient response time. If this transient response time is above a threshold a fault is declared Rich to lean Failure time threshold

(HEGOD_TransDs / HEGOD_RespEvalDs)

> 0.8 s

Secondary Parameters

Enable Conditions

UHEGO Sensor Ready Engine Speed -

See ‘Catalyst Monitor’ Cranking or Engine started and running.

CL A/F control & sub F/B control and stoichiometric fueling requested Battery voltage LSF sensor ready Fuel cut event greater than will inhibit diagnostic for Modeled exhaust gas temperature (tafso) Exhaust massflow (msabS2) Rate of change of exhaust mass flow Engine speed -

Time Req.

MIL illum.

3s

2 Drive

Active 10.7 v < vbatt < 16.1 v See ‘Catalyst Monitor’ > 90 s 20 s > 350 °C > 12 kg/h -150 kg/h < ∆ msabS2 < 20 kg/h in 2 s 1000 rpm < nmot < 3000 rpm

Fault codes that disable P013A P2270, P2271

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 102 of 173

cycles

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Delayed response

Malfunction Criteria

Threshold Value

Delayed response. Checks for If the time taken for sensor voltage reduction in the sensor response to to pass a threshold from the start of a forced rich to lean fueling event. forced fuel event is above a threshold then a fault is declared.

Secondary Parameters

Enable Conditions

UHEGO Sensor Ready Engine Speed –

See ‘Catalyst Monitor’ Cranking or Engine started and running.

CL A/F control & sub F/B control and stoichiometric fueling requested LSF sensor ready Accumulated exhaust mass gas flow since sensor ready Exhaust gas mass flow Rate of change of gas mass flow -

For sensor 2 (LSF) HEGOS2B1DlyRL P013E Rich to lean

Rich to lean Failure time threshold

Catalyst in rich state prior to forced fuel change – sensor voltage Once diagnosis is requested a lean fueling is set to ensure conditions Temperature in the pre-catalyst Engine speed -

Time Req.

MIL illum.

3s

2 Drive Cycles

Active See ‘Catalyst Monitor’ > 2 kg 22 kg/h < msabvvk < 160 kg/h -15 kg/h < ∆ msabvvk < 15 kg/h in 2 s > 1.25 v λ > 1.07 450 °C < tkivkm_w < 900 °C 1200 rpm <nmot < 3000 rpm

> 0.6 s

( HEGOD_DlyDs / HEGOD_RespEvalDs) Fault codes that disable P013E P0138, P0137, P0141, P0136, P0054, P0038, P0037, P0036, P2270, P2271, P0496, P0497, P2096 (Umax), P2097 (Umin), P2096 (Unpl), P2097 (Usig), P0133 , P2231, P2626, P0134, P00D1, P2237 (Pmax), P2237 (Pnpl), P2237 (Psig), P0132, P0131, P0032, P0031, P0030, P2243, P2251, P064D (Umax), P064D (Umin), P064D (Unpl), P064D (Usig)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 103 of 173

Oxygen Sensor Monitoring Component/System

Fault Malfunction Strategy Description Code

Oxygen Sensors Downstream (HEGO LSF AND LSH) Range Check

HEGOS2B1TarLean P2270 HEGOS2B1TarRich P2271

Range Check. Check the voltage level of the sensor to see if it is stuck high, low or not responding.

Malfunction Criteria

A filtered sensor voltage is compared to its self and compared for its maximum and minimum values. If the max and minimum values do not exceed rich and lean thresholds then the sensor voltage is considered stuck. If a stuck state is suspected then forced lean and rich fueling ramps are applied and sensor reaction observed. A fault is declared if no sensor reaction is observed.

Threshold Value

> 0.71 v < 0.20 v

An additional check is also made during fuel cut events that if the oxygen mass in the catalyst has exceeded calibrated level a lean voltage is seen.

HEGOS3B1TarLean P2274 HEGOS3B1TarRich P2275

> 0.74 v < 0.30 v

Enable Conditions

UHEGO Sensor Ready Engine Speed -

See ‘Catalyst Monitor’ Cranking or Engine started and running.

See ‘Catalyst Monitor’

CL A/F control & sub F/B control and stoichiometric fueling requested LSF sensor ready See ‘Catalyst Monitor’ Accumulated exhaust mass gas > 0.20 kg flow since sensor ready For fuel cut check Battery voltage > 10.7 Oxygen flow since fuel cut > 4000 mg Modeled exhaust gas temperature 450 °C < tafso < 800 °C Lamda at end of fuel cut > 1.50 Fault codes that disable P2270 or P0141, P0138, P0137, P0136, P2271 P0496, P0497, P0038, P0037, P0036, P2177, P2178, P2187, P2188, P0459, P0458, P0444, P0300 LSH sensor ready Accumulated exhaust mass gas flow since sensor ready For fuel cut check Battery voltage Oxygen flow since fuel cut Modeled exhaust gas temperature Lamda at end of fuel cut -

See ‘Catalyst Monitor’ > 0.2 kg

> 10.7 v > 4000 mg 450 °C < tahso < 800 °C > 1.50 P0147, P0144, P0143, P0142, Fault codes that disable P2274 or P0044, P0043, P0042, P2177, P2275 P2178, P2187, P2188, P0497, P0459, P0458, P0444, P0300

(HEGOD_LimDs)

Range Rover Evoque & Land Rover Freelander

Secondary Parameters

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 104 of 173

Time Req.

MIL illum.

10 s

2 Drive cycles

9.7.

Drive Cycle Information Oxygen Sensor Monitoring, Drive the vehicle until the engine is fully warm (greater than +65 deg C), the following driving must consist of:  driving the vehicle in a steady throttle condition at a road speed between 40-50 mph for a duration of 2 min  two idle periods of at least 30 second durations each with the air flow between 4 and 13.5 grams per second  a vehicle deceleration with a closed throttle (fully released) for a duration greater than 3 seconds.

Oxygen Sensor Heater Monitor, Start the engine from cold and allow to idle for at least 3 minutes.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 105 of 173

10.

Individual Cylinder AFR Monitor

10.1.

Fault Conditions That Can Be Identified P219A - Bank 1 Air-Fuel Ratio Imbalance P219C - Cylinder 1 Air-Fuel Ratio Imbalance P219D - Cylinder 2 Air-Fuel Ratio Imbalance P219E - Cylinder 3 Air-Fuel Ratio Imbalance P219F - Cylinder 4 Air-Fuel Ratio Imbalance

10.2. System Description An imbalance in individual cylinder air-fuel-ratio operating conditions is assessed using a enleanment roughness judgement method. Once the entry conditions have been met, roughness values for a cylinders, based upon crankshaft speed deviation, is determined then the fuelling to the selected cylinder is leaned out. This enleanment continues until a set roughness shift has been met or misfire detected. If misfire is detected the process is reset and a rich fuelling offset applied before the enleanment process is repeated. During this enleanment a rich fuel bias is applied to the remaining cylinders to compensate for the enleanment. This process is repeated for all cylinders and can occur simultaneously or in individual steps during a drive cycle and the data stored for later analysis.

10.3. Fault Decision Once a set ‘enleanment’ data is gathered an average of the lean shift fuelling factors is made. The individual factors are then compared against the average and if the difference is greater than a threshold then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 106 of 173

10.4. Individual Cylinder AFR Monitor – System Flowchart and Tables Entry Conditions

Entry Conditiond Engine started and running CL A/F control & sub F/B control and stoichiometric fueling requested.

Valid engine roughness signal In gear and clutch closed Engine speed / load In range defined by CILCN_rOpRngLoHi_CUR CILCN_rOpRngLoLo_CUR. Ambient pressure > 70 KPa Coolant temperature - 50 °C < tmot < 120 °C Maximum temperature in main catalyst 200 °C < cattemp < 1000 °C camshaft position for the diagnosis has been reached Not in catalyst heating Time after start 10 s

Yes Obtain roughness values during normal running

Reset fuelling and apply rich shift

Incrementally apply lean fuel shift

Next cylinder Misfire detected

Yes

No Set roughness shift attained Yes

Enleanment factors for all cylinders determined

No

Yes Average enleanment factors

Compare individual cylinder factors with average

Difference > threshold

No

System Pass

Yes

P219A

Range Rover Evoque & Land Rover Freelander

P219C

P219D

JLR 19 39 18_1E

P219E

P219F

Jaguar Land Rover Limited

Page 107 of 173

Individual Cylinder AFR Monitoring Fault Code

Component/System Individual Cylinder AFR cyl 1 AFIMRAWZrich/lean_0 cyl 2 AFIMRAWZrich/lean_3 cyl 3 AFIMRAWZrich/lean_1 cyl 4 AFIMRAWZrich/lean_2

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

Once a set ‘enleanment’ data is P219C An imbalance in individual cylinder P219D air-fuel-ratio operating conditions is gathered an average of the lean assessed using an enleanment shift fuelling factors is made. The P219E roughness judgement method. The individual factors are then compared P219F amount of fuel enleanment is against the average and if the obtained for all cylinders to difference is greater than a achieved a given roughness value threshold then a fault is flagged. A (measured from crank shaft speed lean and rich decision can be made deviation). for all cylinders and the cylinder bank.

> 1.1

Secondary Parameters

Engine started and running.

CL A/F control & sub F/B control and stoichiometric fueling requested Valid engine roughness signal.

In gear and clutch closed.

Engine speed / load range Ambient pressure Coolant temperature Maximum temperature in main catalyst Camshaft position for the diagnosis has been reached.

Not in catalyst heating.

Time after start -

(DAFIMRAW)

Enable Conditions

Active.

Time Req.

Depends 2 Drive upon cycles drive cycle time

CILCN_rOpRngLoHi_CUR (table) CILCN_rOpRngLoLo_CUR (table) > 70 KPa 50 °C < tmot < 120 °C 200 °C < cattemp < 1000 °C

> 10 s

Individual Cylinder AFR CILCN_rOpRngLoHi_CUR input x output w

rpm %

0 150

1520 150

3000 150

4520 150

6000 150

7520 150

0 20.3

1520 20.3

3000 20.3

4520 20.3

6000 20.3

7520 20.3

CILCN_rOpRngLoHi_CUR input x output w

rpm %

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

MIL illum.

Page 108 of 173

11.

Engine Cooling System - Thermostat Monitoring - P0128

11.1. System Schematic Coolant flow with thermostat open

Coolant Temperature Sensor Bypass Coolant flow with thermostat closed

Radiator

Engine ECM

Radiator coolant out Temperature Sensor The detection of a malfunctioning thermostat is determined through comparison of the two coolant sensors, one at the radiator outlet and the other in the engine coolant jacket. If a thermostat is incorrectly allowing coolant through the radiator then the radiator out temperature will have changed prematurely. A temperature differential based upon radiator out temperature at start is compared with the current radiator out temperature. This is used to determine if the thermostat open flag is set. If, once this flag is set, the actual main coolant temperature is below a threshold (thermostat control temperature - 20°F (90°C - 12°C = 78°C)) then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 109 of 173

I: 1 t1 [s]: 280.567801 *

t2 [s]: 320.460817

t2-t1 [s]: 39.893016

9

100

1,000

10

11.2. Typical Time to Detection for a failed Thermostat during Normal Driving Name tmotlinf\CCP:1 tka\CCP:1 vfzg_w \CCP:

Cursor Units 64.9608 Grad C 63.75 Grad C 57.1064 km/h

7

70

80

800

700

2 6

60

1

500

2

4

4

40

1

5

50

600

3

30

400

20

300

2

4

1

10

200

100

0

0

tmotlinf\CCP:1

Color

8

90

900

Nr. 1 2 4

0 100

150

200 Time s

250

100

150

200 Date: Time: User: Unit:

250

B

300

0 1020 A 3

B_etre... 1

300 Object: Project: Data file: C:\Program Files\ ... Y HET Stat Out Tes ts\L538 12MY HET ... rmUp_StatOut2.dat

Coolant Sensor 1 (Engine Out) Coolant Sensor 2 (Radiator Out) Vehicle Speed Fault Detection (280 secs)

24/01/2011 11:21:06

Range Rover Evoque & Land Rover Freelander

1/1

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 110 of 173

11.3. Thermostat Monitoring – System Flowchart and Tables Entry Conditons Engine Speed 560rpm < nmot <5400rpm (if upper range exceeded during drive monitor is suspended) Coolant temperature at start -7 °C < tmo t < 58 °C Ambient air Temperature -7 °C < amb < 60 °C

Temperature engine radiator outlet at start

Plausible delta temperature

Conditions met

Thermostat opened?

Yes

Engine coolant temperature

temp < threshold

Threshold = thermostat control temperature 20°F

Yes P0128

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 111 of 173

Thermostat Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Comparison of temperatures from coolant sensor 1 and radiator out coolant sensor 2.

An open thermostat condition is determined based upon an engine start temperature differential model. If the thermostat is open and the actual main coolant temperature 1 is below a threshold (thermostat control temperature 20°F) then a fault is declared.

Threshold Value

Secondary Parameters

Time Req.

Enable Conditions

MIL illum.

Thermostat Monitor THMnpl P0128

(DTHM)

In addition, if the modeled ECT1 value goes above a threshold for a set period a check is made to see if actual ECT 1 has exceeded the diagnostic enablement threshold. If not a thermostat fault flag is set.

model table KLDLTATKA

(table) < 80.3 °C

Engine Speed (if upper range exceeded during drive monitor is suspended) Coolant temperature at start Ambient air Temperature Idle time ratio (idle / non idle) – Idle time define as time when (Pedal angle Vehicle speed -)

560 rpm < nmot < 5400 rpm -7 °C < tmot < 60 °C -7 °C < amb < 60 °C

Depends 2 Drive upon Cycles drive cycle time

< 50 % <= 7 % <= 1 mph

> 81.8 °C 125 s < 80.3 °C

Thermostat Monitor KLDLTATKA - Characteristic line for delta temperature for thermostat open detection

input x output w

°C °C

-6.8 38.3

0 33

Range Rover Evoque & Land Rover Freelander

9.8 20

20.3 15

JLR 19 39 18_1E

35.3 9.8

60 5

Jaguar Land Rover Limited

Page 112 of 173

12.

Comprehensive Component Monitoring

12.1. Intake Air Temperature Sensor Monitor The installation includes two intake air temperature measurements. One is made post turbocharger compressor prior to the throttle by a combined boost pressure and temperature sensor (TMAP / TFA1). The second is made post air filter and is made by a combined air flow and temperature sensor (TMAF / TFA2).

12.1.1. TMAP / TFA1 (Pre-Throttle) Intake Air Temperature Sensor Monitor 12.1.1.1.

Fault Conditions That Can Be Identified P007D - Charge Air Cooler Temperature Sensor Circuit High (Bank 1) P007C - Charge Air Cooler Temperature Sensor Circuit Low (Bank 1) P007A - Charge Air Cooler Temperature Sensor Circuit (Bank 1) P007B - Charge Air Cooler Temperature Sensor Circuit Range/Performance (Bank 1): rationality check P011C - Charge Air Cooler Temperature/Intake Air Temperature Correlation (Bank 1): diagnosis at cold start

12.1.1.2.

Electrical Monitor (P007D, P007C and P007A) These monitors run continuously. The voltage output from the sensor is compared to absolute maximum and minimum thresholds and a suitable code set if exceeded. Additionally, it tests for a loose connection of the temperature sensor by comparing the difference between the temperature sensor voltage and a low pass filtered value with a 2 second time constant (P007A). If a loose contact occurs, the signal will show a series of step changes between the sensor voltage and the open circuit voltage. Normally, this temperature does not change rapidly, so there should be only a small difference between the signal and the filtered signal. If this difference exceeds a threshold then a fault is declared.

12.1.1.3.

Rationality Monitor (High/Stuck P007B) High Side Check. A maximum air temperature model is formed using inputs from ambient air and engine coolant temperatures and the TFA1 signal is continuously compared to this. If the modeled intake air temperature is less than the actual intake air temperature for a given period then a high fault is declared.

A stuck sensor is declared if the maximum and minimum temperatures are less than a threshold as measured over a sufficiently large duty cycle. A large duty cycle is defined if the number of operational phases with normally higher intake air temperature (High phase) and lower intake air temperature (Low phase) are encountered since vehicle start.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 113 of 173

12.1.1.4.

Cold Start Monitor (P011C) An average of the TFA1 / TFA 2 / Coolant1 / Oil Temperature sensor values during an engine off period is calculated. If the particular sensor value minus the average value is greater than a sensor specific threshold for any period of time, then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 114 of 173

12.1.1.5.

TFA1 Monitoring – System Flowchart and Tables TFA1 sensor signal

Ignition on Vbatt>10.5v

Conditions met

Max Volts

P007D

Yes P0113

P007C Min Volts

Electrical check ok P0112 Yes

Entry Conditions Ignition switch - On Airflow - 40 kg/h <ml< 232 kg/h Vehicle Speed > 48 km/h Intake Air Temperature > -30°C

Conditions met

P007A

Filter and compare signal values

Yes

Difference exceed threshold

Yes

Yes P0110 High side modelled temperature

Modelled temp exceeded Yes

No

Duty Cycle Complete

Yes

Range Rover Evoque & Land Rover Freelander

Maximum and minimum temperatures

JLR 19 39 18_1E

Max and min temperatures below threshold

Yes

P007B

Jaguar Land Rover Limited

Page 115 of 173

TFA Monitoring Component/System

Fault Code

Charge Air Cooler Temperature Sensor (TFA1) Electrical check TAVDEmax P007D high input TAVDEmin P007C low input TAVDEnpl P007E

Plausibility High Check

Plausibility Stuck Check

TAVDRmax P007B

TAVDRnpl P007B (DCTFA )

Range check At start

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Out of range check

IATS voltage (-39.7 °C)

> 4.8 v

Engine started and running

Out of range check

IATS voltage (129.8 °C)

< 0.2 v

Battery voltage -

> 10.5 v

For Changes in temperature are normally not rapid. If the difference exceeds a threshold then a fault is declared.

>1s

Coolant Temp -

> 60 °C

Test for a loose connector/ intermittent fault and compares a raw and filtered sensor reading.

> 0.75 v for 1s

Air Mass Flow -

< 24 kg/h

Vehicle Speed -

> 6 mph

Actual charge air cooler temperature is continuously compared against modeled temperature

If the modeled temperature is greater than the actual temperature for a period then declare a fault

Sensor temperature comparison over a set number of duty cycles

Sensor temperature at start is compared to sensor temperature when fully warm. If the difference between the two is less than a calibratable threshold then declare a fault. The vehicle must complete set high and low intake temperature phases to allow a judgment to be made.

TAVDCSmax P011C A comparison of TFA1 If the sensor value minus the TAVDCSmin against the average of TFA1, TFA2, average value is greater than a ECT1 and Oil sensor values at threshold for any period of time then (DOTMCS) engine start declare afault

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

See KFTFA1MX (table) for 10 s < 2 °C

> +/-20 °C for >2s

Time Req.

MIL illum.

0.2 s

2 Drive Cycles

Engine started and running

5s

Airflow Vehicle Speed -

40 kg/h < ml < 232 kg/h > 40 mph

Engine started and running Engine Temperature at Start High phase Vehicle Speed Coolant Temp Accumulated Air Mass Flow for Low Phase Vehicle Speed Air Mass Flow for -

< 30 °C >2 < 3 mph > 80.3 °C > 10 Kg 30 s >2 > 40 mph 40 kg/h < ml < 300 kg/h 30 s

Ignition switch Battery voltage Engine OFF period Block heater not detected Ambient temperature Or Engine coolant temperature < modeled soak down + temperature offset dependent on ambient temperature if engine off time

Jaguar Land Rover Limited

Depends upon drive cycle time

On > 10.5 v > 8 hour > 5.3 °C KLSKDWNOFF (table) > 4 hours

Page 116 of 173

0.2 s

TFA Monitoring Fault Code

Component/System

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Time Req.

MIL illum.

1s

2 Drive Cycles

Charge Air Cooler Temperature Sensor (TFA1) Fault Codes that disable P007B P0103, P0102, P0100, P0101 (max) & (npl) (Rmax), P0101 (Rmin), P0106 Pmax), P0106 (Pmin), P0106 (Bmax), P0106 (Bmin), P0105, P0106 (Bsig), P0108, P0107, P007D, P007C, P007E, P0116 (CSmax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0118, P0117 , Fault Codes that disable P011C P0113, P0112, P0114, P0198, (max) & (min) P0197, P0195, P007D, P007C, P007E, P0118, P0117

TFA Monitoring Fault Code

Component/System

Malfunction Strategy Description

Threshold Value

Malfunction Criteria

Boost pressure control plausibility – max LDRRmax P0234

plausibility – min

If the control deviation exceeds a Checks the control deviation of boost pressure. The deviation is the threshold for a period then a fault is declared difference between desired and actual boost pressure.

It looks for LDRRmin P0299 If a filtered value of the control over boost (max) and underboost deviation exceeds a threshold then (min) conditions. a fault is declared (DLDR)

KLDLUL (table) for 2s 30 KPa for 2s

Secondary Parameters

Enable Conditions

Boost active.

Boost active.

Engine speed greater than an >NDLDRAPU (table) ambient pressure based thresholdAmbient pressure greater than 70 KPa threshold Throttle is wide open.

Fault Codes that disable P0234 & P2282, P0246, P0245, P0237 P0299 (Emin), P0237 (Rmin), P0238 (Emax), P0238 (Rmax), P0236 (Rnpl), P0236 (Rsig), P0103, P0102, P0100, P06A6

TMAP Boost pressure sensor KLDLUL - Threshold negative deviation of boost pressure for detecting overcharge pressure input x output w

Kpa Kpa

-50 110

-25 82.5

Range Rover Evoque & Land Rover Freelander

0 55

25 45

50 37.5

JLR 19 39 18_1E

75 35

100 28.5

127 27.5

Jaguar Land Rover Limited

Page 117 of 173

5s

TFA Monitoring Component/System

Fault Malfunction Strategy Description Code

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

0.2 s

2 Drive Cycles

TMAP Boost pressure sensor TMAP high input

PVDEmax P0238

Out of range check

PVD voltage (315 KPa)

> 4.88 v

Ignition switch -

On

TMAP low input

PVDEmin P0237

Out of range check

PVD voltage (7 KPa)

< 0.2 v

for

> 0.2 s

Battery voltage Engine Speed -

> 10.5 v Cranking or Engine started and

PVDRmax P0238 PVDRmin P0237

Out of range check Out of range check

PVDRnpl P0236

TMAP pressure is continuously compared against ambient air pressure when boost is not operating

MAP pressure MAP pressure for If TMAP is greater than ambient pressure for any period of time then declare a fault

> 300 KPa < 5 KPa > 0.6 s Dynamic TMAP- 6 KPa > Dynamic Amb.Press+ 20 KPa Dynamic TMAP+ 6 KPa > Dynamic Amb.Press10 KPa

(GGPVD)

TMAP v Ambient Air Pressure

TMAP v Ambient Air Pressure

PVDRsig P0236

If TMAP is less than ambient pressure for any period of time then declare a fault

running.

0.6 s

3s

Engine started and running.

Engine RPM -

< 1000 rpm

Throttle Angle -

<7%

For -

3s

Fault Codes that disable P0237 P06A6 (Emin) & P0238 (Emax) Fault Codes that disable P0237 P0237 (Emin), P0238 (Emax), (Rmin), P0238 (Rmax), P0236 P0069 (Rmax), P0069 (Rmin), (Rnpl) & (Rsig) P0069 (Rnpl), P2227, P2229, P2228, P2176 (Unpl), P2135

(DPLPVD)

Intake Air Temperature Sensor 1 KFTFA1MX - high-side-check TFA1: maximum temperature threshold P007B - Charge Air Cooler Temperature Sensor Circuit Range/Performance (Bank 1) y x 20.3 69.8 120 input x °C -20 35 65 80 input y °C 20.3 37.5 65.3 80.3 output w °C 50.3 50.3 75 120 KLSKDWNOFF - map for temperature offset on soak down model for detection of block heater effect input x output w

°C °C

-39.8 2.3

-30 2.3

-20.3 2.3

Range Rover Evoque & Land Rover Freelander

-9.8 2.3

0 2.3

JLR 19 39 18_1E

9.8 2.3

20.3 2.3

30 2.3

Jaguar Land Rover Limited

Page 118 of 173

12.1.2. TMAF / TFA2 (Post air filter) Intake Air Temperature Sensor Monitor 12.1.2.1.

Fault Conditions That Can Be Identified P0113 - Intake Air Temperature Sensor 1 Circuit High (Bank 1) P0112 - Intake Air Temperature Sensor 1 Circuit Low (Bank 1) P0110 - Intake air temperature sensor 1 Circuit (Bank 1): electrical check P0111 - Intake Air Temperature Sensor 1 Circuit Range/Performance (Bank 1) P00CE - Intake Air Temperature Measurement System - Multiple Sensor Correlation: diagnosis at cold start 12.1.2.2.

Electrical Monitor (P0113, P0112 and P0110) These monitors run continuously. The voltage output from the sensor is compared to absolute maximum and minimum thresholds and a suitable code set if exceeded. Additionally, it tests for a loose connection of the temperature sensor by comparing the difference between the temperature sensor voltage and a low pass filtered value with a 2 second time constant (P0110). If a loose contact occurs, the signal will show a series of step changes between the sensor voltage and the open circuit voltage. Normally, this temperature does not change rapidly, so there should be only a small difference between the signal and the filtered signal. If this difference exceeds a threshold then a fault is declared.

12.1.2.3.

Rationality Monitor (P0111) TFA2 is continuously subtracted from TFA1. If TFA2 – TFA1 is greater than a max or minimum threshold for period of time then a max or minimum fault is declared.

12.1.2.4.

Cold Start Monitor (P00CE) An average of the TFA1 / TFA 2 / Coolant1 / Oil Temperature sensor values during an engine OFF period is calculated. If the particular sensor value minus the average value is greater than a sensor specific threshold for any period of time, then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 119 of 173

12.1.2.5.

TFA2 Monitoring – System Flowchart and Table TFA2 sensor signal

Ignition on Vbatt>10.5v

Max Volts

P0113

P0098

Conditions met

P0112 Yes

P0097 Electrical check ok

Min Volts

Filter and compare signal values

Yes

Entry Conditions Ignition switch - On Airflow - 40kg/h < m l< 232 kg/h Vehicle Speed > 48 km/h Boost pressure > 1.350 Kg/s

Conditions met

Yes

Difference exceed threshold

P0110

Yes

Yes

P007B

TFA2 temperature

Range Rover Evoque & Land Rover Freelander

TFA2 – TFA1

JLR 19 39 18_1E

Temp difference exceeded

Yes

P0111

Jaguar Land Rover Limited

Page 120 of 173

TFA Monitoring Component/System

Fault Code

Intake Air Temperature Sensor after the Air Filter (TFA2) electrical check TANLEmax P0113 high input low input TANLEmin P0112 TANLEnpl P0114

Plausibility - Max TANLRmax P0111 Check (DCTFA )

Range check At start

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Out of range check

TAN voltage (125.3 °C)

> 4.8 v

Ignition switch -

On

0.2 s

Out of range check

TAN voltage (-39.8 °C)

< 0.2 v

Battery voltage -

> 10.5 v

2 Drive Cycles

For Changes in temperature are normally not rapid. If the difference exceeds a threshold then a fault is declared. for Sensor temperature at start is compared to sensor temperature when fully warm. If the difference between the two is less than a calibratable threshold then declare a fault. The vehicle must complete set high and low intake temperature phases to allow a judgment to be made.

>1s

Engine started and running Engine Temperature at Start High phase Vehicle Speed Coolant Temp Accumulated Air Mass Flow for Low Phase Vehicle Speed Air Mass Flow for -

< 30 °C >2 < 3 mph > 80°C > 10 Kg 30 s >2 > 44 mph 40 kg/h < ml < 300 kg/h 30 s

Test for a loose connector/ intermittent fault and compares a raw and filtered sensor reading.

Sensor temperature comparison over a set number of duty cycles

TANLCSmax TANLCSmin

If the sensor value minus the A comparison of TFA2 average value is greater than a against the average of TFA1, TFA2, P00CE threshold for any period of time then ECT1 and Oil sensor values at (DOTMCS) declare afault engine start

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

> 0.75 v 2s 2.3 °C

> +/-20 °C for >2s

Ignition switch -

0.1 s

On

Battery voltage Engine OFF period Block heater not detected Fault Codes that disable P0111 (max) & (min)

0.2 s

> 10.5 v > 8 hours Refer to TAVDCSmax P011C P0113, P0112, P0114, P0103, P0102, P0100, P0101 (Rmax), P0101 (Rmin), P0106 (Pmax), P0106 (Pmin), P0106 (Bmax), P0106 (Bmin), P0105, P0106 (Bsig), P0108, P0107, P007D, P007C, P007E, P0116 (CSmax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0118, P0117 Fault Codes that disable P00CE P0113, P0112, P0114, P0198, P0197, (max) & (min) P0195, P007D, P007C, P007E, P0118, P0117

Jaguar Land Rover Limited

Page 121 of 173

12.2. MAF - Air Flow Monitor 12.2.1.

Fault Conditions That Can Be Identified P0103 - Mass or Volume Air Flow Sensor A Circuit High P0102 - Mass or Volume Air Flow Sensor A Circuit Low P0100 - Mass or Volume Air Flow Sensor A Circuit P0101 - Mass or Volume Air Flow Sensor A Circuit Range/Performance 12.2.2.

Range Check (P0103 / P0102) These monitors run continuously. While engine is running, monitor checks that A PWM signal is detected on the ECM pin and has the correct frequency. Period of PWM signal must be between 55 micro seconds and 1600 micro seconds. If it is not then a fault is declared.

12.2.3.

Signal Check (P0100) This monitor runs continuously. If no edges are detected then no signal present is diagnosed and a fault is declared.

12.2.4.

Rationality Monitor (P0101) The monitor runs continuously as long as the entry conditions are met. The airflow meter monitor compares the measured airflow with an estimated airflow which is calculated by a model. The model that determines the estimated airflow uses look-up tables which have engine speed and throttle angle as inputs for deriving base and compensation values for intake air temperature, atmospheric pressure and VVT, from which the estimated airflow is calculated.

A judgment of whether the airflow meter is behaving correctly is made after the entry conditions have been fulfilled and the differences between the measured and estimated values compared with calibrated thresholds. The airflow meter is faulty if the difference between the actual and estimated values is greater than a calibrated threshold. The monitors have the ability to make a normal judgment followed by a failed judgment or vice versa as the monitors run continuously whilst the entry conditions are met.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 122 of 173

12.2.5.

MAF Monitoring – System Flowchart and Table

Entry Conditions Ignition switch - On Battery voltage > 10.5 v.

Airflow -10 Kg/h and 850 Kg/h.

Conditions met

Yes Max PWM

P0103 PWM Range check ok

Min PWM

P0102 Yes

PMW Signal ok

No

P0100

Yes

P0101

Yes

Modelled air flow

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Flow difference exceeded

Jaguar Land Rover Limited

Page 123 of 173

MAF Monitoring Component/System

Fault Code Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req. 0.2 s

MIL illum.

Mass Airflow Meter MAF high input

HFM1Emax

P0103

Out of range check

MAF PWM signal

> 1600 µs

Ignition switch -

On

MAF low input

HFM1Emin (GGHFM) HFM1Esig HFMRmax HFMRmin

P0102

Out of range check

< 55 µs 0.2 s

Engine speed Battery voltage -

Cranking > 10.5 v

P0100 P0101

Signal check Dynamic upper and lower failure thresholds offset from MAF signal by calibratable values

MAF PWM signal for No PWM signal detected If MAF signal is greater or lower than the dynamic failure thresholds for any period of time then report failure

Upper Threshold : MAF x 1.297 Lower Threshold : MAF x 0.703

Ignition switch -

On

Battery voltage Airflow -

> 10.5 v -10 kg/h and 850 kg/h

On > 10.5 v

MAF Plausibility

(DHFMR) Sensor Supply Monitor SSpMon1 SSpMon2 (Cy320) SSpMon3 Main Relay Monitoring MRlyErlyOpng (MRly_VD)

P06A6 P06A7 P06A8

Sensor supply voltage check

Voltage between

4.8 v ~ 5.2 v

Ignition switch Battery voltage -

P068A

Main relay check

Early opening – signal time

< 0.03 s

Transition from ignition off to on.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

0.1 s

0.2 s

0.2 s

Page 124 of 173

2 Drive Cycles

12.3. MAP Pressure Monitor 12.3.1.

Fault Conditions That Can Be Identified P0108 - Manifold Absolute Pressure/Barometric Pressure Sensor Circuit High P0107 - Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Low P0106 - Manifold Absolute Pressure/Barometric Pressure Sensor Circuit Range/Performance 12.3.2.

Electrical Monitor (P0108/P0107) These monitors run continuously. The voltage output from the sensor is compared to absolute maximum and minimum thresholds and a suitable code set if exceeded.

12.3.3.

Range Check, Rationality and Signal Monitor (P0106) The range check compares the pressure readings with an upper and lower threshold at start. If these are outside the range then a fault is declared.

Rationality check. This monitor runs continuously. The manifold pressure sensor monitor compares the measured manifold pressure with an estimated pressure which is calculated by a model. The model that determines the estimated pressure uses look-up tables which have engine speed and throttle angle as inputs for deriving base and compensation values for intake air temperature, atmospheric pressure and VVT, from which the estimated pressure is calculated. If the difference between the actual and estimated values is greater or less than a threshold then a fault is declared. The monitors have the ability to make a normal judgment followed by a failed judgment or vice versa, as the monitors run continuously whilst the entry conditions are met.

Signal check. At start, the manifold pressure sensor reading is compared to an average of the MAP/TMAP/Ambient pressure sensor values if a defined soak period has been completed. If the difference greater than a failure threshold then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 125 of 173

12.3.4.

MAP Monitoring – System Flowchart and Tables Manifold Pressure sensor signal

Ignition on Vbatt>10.5v Max Volts

Conditions met

Yes

P0108

Electrical check ok Min Volts

P0107 Yes

Max Pressure Pressure check ok

No

Min Pressure Yes

Engine cranking.

Conditions met

Yes Averaged MAP/ TMAP/Ambient pressures

Off time > 10 s

Pressure difference exceeded

Yes

No

Engine started and running.

Atmospheric Pressure -> 75 KPa.

Conditions met

Yes

Modelled Manifold Pressure

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Pressure difference exceeded

Yes

Jaguar Land Rover Limited

P0106

Page 126 of 173

MAP/TMAP Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

1s

2 Drive Cycles

Manifold Pressure Sensor MAP high input

PSREmax P0108

Out of range check

MAP voltage (310 kPa)

> 4.8 v

Ignition switch -

On

MAP low input

PSREmin P0107 (GGDSS) PSRBmin P0106 PSRBmax P0106

Out of range check

MAP voltage (7 KPa) for MAP pressure MAP Pressure for If the difference between modeled manifold pressure is greater than the actual manifold pressure for any period of time then report a failure (for both positive and negative error)

< 0.20 v > 0.2 s 300 KPa 5 KPa > 10 s

Battery voltage Engine Speed -

> 10.5 v Cranking or Engine started and

Plausibility P0106 PSRPmax/min

PSRBsig P0106 PSRBnpl P0105

MAP leak check plausibility

Out of range check Out of range check Modeled manifold pressure is continuously compared against the actual manifold pressure

Pressure check at start

> 11.2 KPa

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

> 24.5 KPa for 10 s

Atmospheric Pressure -

> 46.5 KPa

Ignition switch Battery voltage Engine speed Soak time Air Mass Flow Manifold pressure/Pressure upstream of throttle Time after engine start Engine speed – No purge diagnostic running for > 5 sec No electrical faults with MAP or Throttle sensors

On > 10.5 v Cranking 5s 5 kg/h < ml < 30 kg/h 0.2 < vpsrvd < 0.58

Jaguar Land Rover Limited

10 s

0.1 s

Engine started and running.

Averages MAP/TMAP/Ambient pressure sensor values at start after > +/-10 KPa a defined soak period and compares them to a threshold.

(DPLPSR) LZSRnpl P2282 Air Leak Between Throttle Body and If the difference between modeled Intake Valve. Continuously monitor manifold pressure and actual the manifold pressure is greater than (BGADAP) difference between modeled a calibratable threshold for a manifold pressure and actual calibratable period of time then manifold pressure declare a fault.

running.

> 5 sec 520 rpm < nmot < 6520

Page 127 of 173

0.2 s

24 s

MAP/TMAP Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Manifold Pressure Sensor Fault Codes that disable P0107 & P06A6 P0108 Fault Codes that disable P0106 P0108, P0107 (Bmax), (Bmin) & (Bsig) and P0105 Fault Codes that disable P0106 P0238 (Emax), P0237, P0238 (Pmax) & (Pmin) (Rmax), P0237 (Rmin), P0236 (Rnpl), P0236 (Rsig), P2229, P2228, P0069 (Rmax), P0069 (Rmin), P0069 (Rnpl), P2227, P0106 (Bmax), P0106 (Bmin), P0105, P0106 (Bsig), P0108 , P0107, P2176, P007D (Emax), P007C, P007E, P011C (CSmax), P011C (CSmin), P007B (Rmax), P007B (Rnpl), P000B, P000A, P0014, P2135, P0011, P0116 (CSmax), P0116 (CSmin), P0118, P0117, P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P2091, P2090, P0013, P2089, P2088, P0010, P0336, P0335,

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 128 of 173

Time Req.

MIL illum.

12.4. Coolant Temperature Sensor Monitor 12.4.1.

Fault Conditions That Can Be Identified P0118 - Engine Coolant Temperature Sensor 1 Circuit High P0117 - Engine Coolant Temperature Sensor 1 Circuit Low P0116 - Engine Coolant Temperature Sensor 1 Circuit Range/Performance P011B - Diagnosis of engine coolant temperature sensor at cold start 12.4.2.

Electrical Monitor (P0118/P0117) These monitors run continuously. The voltage output from the sensor is compared to absolute maximum and minimum thresholds and a suitable code set if exceeded.

12.4.3.

Rationality Monitor (P0116) High Side Check. A maximum coolant temperature model is formed using inputs from ambient air and mass air flow being initialized from a filtered coolant temperature. The coolant temperature signal is continuously compared to this. If the modeled coolant temperature is less than the actual coolant temperature then a high fault is declared.

A stuck sensor is declared if the maximum minus minimum temperatures are less than a threshold as measured over a duty cycle. A duty cycle is defined if the number of operational phases with normally higher intake air temperature (High phase) and lower intake air temperature (Low phase) have been encountered since vehicle start.

Low Side Check. The temperature value from the sensor is compared with a warming-up model, which represents the slowest warm-up of the engine in a faultless condition. The model is formed using inputs from ambient temperature and mass air flow being initialized from a filtered coolant temperature. If the coolant temperature is below that of the model then a fault is declared.

12.4.4.

Cold Start Monitor (P011B) An average of the TFA1 / TFA2 / Coolant1 / Oil Temperature sensor values during an engine off period is calculated. If the sensor value minus the average value is greater than a sensor specific threshold for any period of time then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 129 of 173

12.4.5.

Coolant Sensor Monitor – System Flowchart and Tables Coolant temperature sensor 1 signal

Ignition on Vbatt>10.5v Max Volts

Conditions met

Yes

P0118

Electrical check ok Min Volts

P0117 Yes

Entry Conditions Engine started an running Coolant Temp at engine start stored

Conditions met

Yes

High side Modeled temperature

High check

Modeled temp exceeded

Yes

No

Low side Modeled temperature

Low check

Actual temp below model

Yes

No

Stuck check

Duty Cycle Complete

Range Rover Evoque & Land Rover Freelander

Yes

Maximum and minimum temperatures

JLR 19 39 18_1E

Max minus min temperatures below threshold

Yes

P0116

Jaguar Land Rover Limited

Page 130 of 173

Coolant Temperature Sensor Monitoring Component/System

Fault Code

Engine Coolant Temperature (Sensor 1) electrical high input TMEmax P0118 check low input TMEmin P0117 Plausibility Low Check

TMPmin P0116

Plausibility Stuck Check

TMPnpl P0116

Plausibility High Check

Range check at start

TMPmax P0116

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

2s

2 Drive Cycles

Out of range check

ECT voltage (-39.8 °C)

> 4.9 v

Ignition switch -

On

Out of range check

ECT voltage (143.3 °C) For If the actual coolant sensor value is less than the modeled coolant sensor value minus a tolerance for a time period then declare a fault.

< 0.098 v >2s

Battery voltage -

> 10.5 v

Sensor < Modeled – 25°C for 20 s

Engine started an running Block heating not detected

Refer to TAVDCSmax P011C

0.2 s

Ignition switch -

On

Depends

>2 0 mph < vfzg < 40 mph 0 kg/h < ml <152 kg/h > 60 °C > 10 s >2 40 mph < vfzg < 90 mph 52 kg/h < ml < 300 kg/h

upon drive cycle time

Actual coolant sensor value is continuously compared against a lowest modeled coolant sensor value.

Sensor temperature comparison over a set number of duty cycles

Actual coolant sensor value is continuously compared against a highest modeled coolant sensor value.

Sensor temperature at start is compared to sensor temperature when fully warm. If the difference between the two is less than a calibrateable threshold then declare a fault. The vehicle must complete set high and low intake temperature phases to allow a judgment to be made.

If the actual coolant sensor value less a calibratable tolerance is less than the modeled coolant sensor value for a time period then declare a fault.

(DPLTCW) A comparison of ECT1 If the sensor value minus the TMCSmax P011B against the average of TFA1, TFA2, average value is greater than a TMCSmin ECT1 and Oil sensor values at threshold for any period of time then (DOTMCS) engine start declare afault

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

> 2 °C

High phase Vehicle Speed Air Mass Flow Modeled temperature for low Phase Vehicle Speed Air Mass Flow or In fuel cut for Sensor 15°C < Modeled value for 20 s > +/-20 °C for >2s

> 30 s

Engine started and running

0.2 s

Accumulative airflow -

> 1.46 Kg

Ignition switch Battery voltage After engine off time Block heater not detected

On > 10.5 v 28800 s Refer to TAVDCSmax P011C

Jaguar Land Rover Limited

0.2 s

Page 131 of 173

Coolant Temperature Sensor Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

Engine Coolant Temperature (Sensor 1) (con’t) Fault Codes that disable P0116 P2610, P0181 (Rmax), P0181 (Pmin), (Pmax) & (Pnpl) (Rmin), P0181 (Rnpl), P0181 (Rsig), P0128, P0103, P0102, P0100, P0101 (Rmax), P0101 (Rmin), P0106 (Pmax), P0106 (Pmin), P0106 (Bmax), P0106 (Bmin), P0105 , P0106 (Bsig), P0108, P0107, P0501, P0502, P0118, P0117 Fault Codes that disable P011B P0113, P0112, P0114, P0198, (CSmax) & (CSmin) P0197, P0195, P007D, P007C, P007E, P0118, P0117

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 132 of 173

MIL illum.

12.5. Radiator Out Temperature Sensor Monitor 12.5.1.

Fault Conditions That Can Be Identified P2185 - Engine Coolant Temperature Sensor 2 Circuit High P2184 - Engine Coolant Temperature Sensor 2 Circuit Low P2183 - Engine Coolant Temperature Sensor 2 Circuit Range/Performance 12.5.2.

Range Monitor (P2185, P2184) These monitors run continuously. The output from the sensor is compared to absolute maximum and minimum thresholds and a suitable code set if exceeded. .

12.5.3.

Rationality Monitor (P2183)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 133 of 173

Minimum plausibility. At engine start the temperature difference between the sensors is calculated. If this difference is above a threshold then a fault code is set.

Maximum plausibility. A model is formed representing the slowest warm up of coolant sensor 1. When the thermostat is open, after a delay and then a period of idle the sensor temperature difference is calculated. If this difference is above a threshold then a fault is declared.

Stuck check. When fully warm the difference in the radiator out temp is calculated. If this difference is below a threshold then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 134 of 173

12.5.4.

Radiator Out Temperature Sensor Monitor – System Flowchart and Table Radiator out coolant sensor 2 signal

Ignition on Vbatt>10.5v

Conditions met

Yes

Max Volts

P2185 Electrical check ok

Sensor 1 = Coolant temperature sensor 1

Min Volts

P2184 Yes

Engine started and running

Sensor 2 = Radiator out coolant sensor 2

Conditions met

Yes

Post start timer exceeded

Yes

Sensor 1 - Sensor 2

Sensor 1

Yes

Coolant Temp > 80 °C Not in fuel cut Ambient air temp > -6.8 °C Vehicle Speed -3 mph < vfzg < 70 mph Engine Speed > 560 rpm For 715 s

Range Rover Evoque & Land Rover Freelander

Less than a threshold

Yes

Low Fault

Sensor 2 maxmin < 2 degC

Yes

Stuck Fault

JLR 19 39 18_1E

Jaguar Land Rover Limited

P2183

Page 135 of 173

Radiator Out Temperature Monitoring Component/System

Fault Code

Radiator out coolant (sensor 2) Range Check TKAEmax P2184 TKAEmin P2185 Signal Check Plausible Low

Signal Check Sensor stuck

Malfunction Strategy Description

Malfunction Criteria

Out of range check Out of range check

Coolant sensor 2 Coolant sensor 2 for TKARmax P2183 Check for a hanging sensor at start At engine start the temperature - to identify if ECT2 is biased high or difference between ECT 1 and ECT low.

2 is calculated. If this difference is above or below a threshold based upon ECT 2 temperature then a fault is declared TKARsig P2183 Check for a stuck or un responsive When fully warm, and the entrance sensor conditions met, after a set delay (GGTKA) the difference in the max and min ECT 2 temperatures are calculated.

If this difference is below a threshold then a fault is declared.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Threshold Value

Secondary Parameters

Time Req.

Enable Conditions

> 120 °C < -30 °C >2s > 25 °C < - 25 °C for 20 s

> 715 s < 2 °C

0.2 s

Engine speed Coolant Temp Ambient air temperature Engine off time -

Passed from cranking to start > -20 °C > -20 °C > 8 hours

Block heater not detected

Refer to TAVDCSmax P011C

Engine started and running.

Coolant Temp Not in fuel cut Ambient air temp Vehicle Speed Engine Speed -

Jaguar Land Rover Limited

> 80 °C > -6.8 °C 3 mph < vfzg < 70 mph > 560 rpm

2s

Depends upon drive cycle time

Page 136 of 173

MIL illum.

13.

Additional tables

13.1. Cold Start Emission Reduction Strategy Performance Tables Cold Start Ignition Timing Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Catalyst heating active Altitude Time delay after start Relative air charge Engine speed change For idle :-

< 9900 ft. >3s < 25 % < 271 rpm in 1 s

Vehicle speed

= 0 mph

Time Req.

MIL illum.

Cold Start Emission Reduction Strategy Performance Ignition Timing Performance

At idle

At part load

When catalyst heating is active diagnostic calculates the difference between the current ignition angle efficiency and the desired ignition angle efficiency. The differences are integrated separately for idle (detkhlav_w) and part load ETAKHLmax P050B conditions (detkhtav_w). The integrated differences are divided by the time in which idle or part load was active. The calculated average deviations are compared with different thresholds for idle ETAKHTmax P050B (mxetkhll_w) and part load (mxetkhtl_w) and in the case these thresholds are exceeded an error is set. The evaluation of the results is only allowed when the time inside idle or part load is greater than a (DETAKH) minimum necessary time constant.

For idle :detkhlav_w once tkhindle_w -

> (table) KFMXETKHLL

>8s

For part load :detkhtav_w once tkhpload_w

> (table) KFMXETKHTL

>8s

8s

Idle flag set Desired engine efficiency For part load :-

< 0.97

Vehicle speed -

> 3 mph

Idle flag set

=0

Desired engine efficiency -

< 0.97

8s

Fault Codes that disable P050B P2229, P2228, P0069 (Rmax), P0069 (Rmin), P0069 (Rnpl), P2227, P054A, P052A, P0501, P0502, P000B, P000A

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

2 Drive Cycles

Jaguar Land Rover Limited

Page 137 of 173

Cold Start Emission Reduction Strategy Performance KFMXETKHLL - Temperature dependent maximum allowed deviation of ignition efficiency during catalyst haeting during idle (MAX-Errorpath) P050B - Ignition Timing Performance input x input y output w

°C Altitude ft ign efficiency

10500 6775 3386 0

-9.8 0.21 0.32 0.35 0.35

-6.8 0.21 0.32 0.35 0.35

0 0.21 0.34 0.38 0.38

9.8 0.21 0.34 0.38 0.38

20.3 0.21 0.34 0.38 0.38

30 0.21 0.34 0.38 0.38

50.3 0.21 0.34 0.38 0.38

69.8 0.21 0.36 0.40 0.40

KFMXETKHTL - Temperature dependent maximum allowed deviation of ignition efficiency during catalyst haeting during part load (MAX-Errorpath) P050B - Ignition Timing Performance input x input y output w

°C Altitude ft ign efficiency

10500 6775 3386 0

-9.8 0.13 0.13 0.13 0.13

-6.8 0.13 0.13 0.13 0.13

Range Rover Evoque & Land Rover Freelander

0 0.13 0.13 0.13 0.13

9.8 0.13 0.13 0.13 0.13

JLR 19 39 18_1E

20.3 0.13 0.13 0.13 0.13

30 0.14 0.14 0.14 0.14

50.3 0.17 0.17 0.17 0.17

69.8 0.18 0.18 0.18 0.18

Jaguar Land Rover Limited

Page 138 of 173

Cold Start Camshaft Position Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Cold Start Emission Reduction Strategy Performance (cont) Camshaft position Cold start ENWCSmax P052A The intake camshaft adjustment is A setpoint/actual deviation is Intake A > monitored by checking the classified as detected as soon as KFDWNWCSE camshaft camshaft adjustment angles during there is a difference between (table) position timing cold start catalyst heating setpoint angle and actual angle for >5s over advanced conditions. more than

(DNWCS)

Cold start Exhaust B camshaft position timing over advanced

ANWCSmax P054A

For this purpose, the signdependant difference between setpoint value and actual value is compared to a threshold dependant on oil temperature and engine speed.

As above

Secondary Parameters

Enable Conditions

Catalyst heating with help of camshaft adjustment active

Time Req.

MIL illum.

5 s

2 Drive Cycles

VVT Active

A setpoint/actual deviation is classified as detected as soon as there is a difference between setpoint angle and actual angle more than

> KFDWNWCSA

(table) for 4s

Fault Codes that disable P052A P0341, P0343, P0342, P06A7, P0016 (MntErr), P2089, P2088, P0010, P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P0336, P0335 Catalyst heating with help of camshaft adjustment active VVT Active

(DNWCS) Fault Codes that disable P054A P0366, P0368, P0367, P06A7, P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P0336, P0335, P2091, P2090, P0013

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 139 of 173

4 s

Cold Start Emission Reduction Strategy Performance KFDWNWCSE - Maximum deviation in camshaft position for error entry intake CSERS y input x input y output w

1/min °C Grad KW

x -10.5 20.3 110.3 120

800 7.75 7.75 7.75 9.5

1600 7.75 7.75 7.75 9.5

2520 7.75 7.75 7.75 9.5

3520 7.75 7.75 7.75 9.5

KFDWNWCSA - Maximum deviation in camshaft position for error entry outlet CSERS y input x input y output w

1/min °C Grad KW

x -10.5 20.3 110.3 120

1520 8 8 8 8

1600 6 6 6 6

2520 6 6 6 6

3520 6 6 6 6

Cold Start Fuel Pressure Monitoring Component/System

Fault Code

Malfunction Strategy Description

Cold Start Emission Reduction Strategy Performance (cont) Fuel Pressure Cold start fuel P053F HDRKHmax The diagnostic checks if the high pressure rail pressure can be adjusted by the Performance MSV control circuit and if there is max/min error an implausible deviation between the actual MSV control value of the HDRKHmin P053F actuator and desired control value during cold start catalyst heating (DKVBDEPL) conditions.

Malfunction Criteria

Threshold Value

Filtered control deviation of high pressure control

< -0.9 Mpa For 5s

Secondary Parameters

Enable Conditions

Catalyst heating active After start counter

>2s

> 0.9 Mpa For 5s Fault Codes that disable P053F P0088, P0087, P0191 , P0191, P0251, P0254, P0253, P0193, P0192

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 140 of 173

Time Req.

MIL illum.

5 s

2 Drive Cycles

13.2. Barometric Pressure Sensor Monitoring Table Barometric Pressure Sensor Monitoring Barometric Pressure Sensor Baro. sensor high

PUEmax P2229

Out of range check

HAC voltage (123.4 kPa)

> 4.85 v

Ignition switch -

On.

Baro. sensor low

PUEmin P2228 (GGPU) PURmax P0069

Out of range check

HAC voltage (10 KPa) For

< 0.249 v >1s

Battery voltage -

> 10.5 v

Out of range check

Amb PS

>115 KPa

Ignition switch -

On

PURmin

Out of range check

Amb PS

< 42.5 KPa > 10 s

Battery voltage -

> 10.5 v

Atmospheric pressure will only change at a slow rate of change.

The monitor looks for any irregular changes through continuous measurement Last drive check

A filtered value of pressure is compared with its self over a time step differential. The difference is compared an upper and lower tolerance Compares a stored last value from the previous drive cycle with the current value 5 second after start. If the difference exceeds threshold then a fault is declared.

Plausibility

Signal

PURnpl P0069

PURsig P2227

JLR 19 39 18_1E

+/-1.5 KPa

+/-1.5 KPa

Jaguar Land Rover Limited

2s

0.2 s

Fault Codes that disable P0069 & P0237 (Emin), P0237 (Rmin), P2227 P0238 (Emax), P0238 (Rmax), P0236 (Rnpl), P0236 (Rsig), P2229, P2228, P06A6, P2135

(DPLPU)

Range Rover Evoque & Land Rover Freelander

Engine started and running.

1s

Page 141 of 173

13.3. Cam and Crankshaft Sensor Monitoring Tables Cam and Crankshaft Sensor Monitoring Component/System

Fault Code

Crankshaft Sensor Malfunction EpmCrSNoSig P0335 Circuit

Range / Performance

EpmCrSErrSig P0336

EpmCrSDGI P0336

Malfunction Strategy Description

Malfunction Criteria

Monitors crank sensor signal and whether a gap has been identified for the toothed crankshaft wheel Monitors crank sensor signal for plausibility from the toothed crankshaft wheel Monitors crankshaft signal for plausible pulse length, engine stop position and high speed reverse rotation plausibility

Threshold Value

Crankshaft rotation counter

>3

Crankshaft signal plausibility counter

> 1000

Enable Conditions

Engine Speed -

Cranking or Engine started and running.

Detection of a missing camshaft signal, no signal edge present Level on the input is low

In between of several crankshaft revolutions there is not any camshaft edge present then a failure counter increments. If this exceeds a threshold then a fault is declared

Engine Speed -

Cranking or Engine started and running.

MIL illum.

0.1 s

2 Drive Cycles

5 revs

>8 Camshaft position sensor A Cct high

EpmCaSI1No P0343 SigMax

Detection of a missing camshaft signal, no signal edge present Level on the input is high

Camshaft position sensor A Cct range / performance

EpmCaSI1 P0341 ErrSig

Detection of a disturbed Camshaft signal, number and / or position of the camshaft edges implausible

(EpmCaS_Diag)

Time Req.

Fault Codes that disable P0335 P06A8, P06A7 or P0336

(EpmCrS_Diag) Intake Camshaft Sensor Camshaft EpmCaSI1No P0342 position SigMin sensor A Cct low

Secondary Parameters

In between of several crankshaft revolutions there are too many or too less camshaft edges present or the distance or series of the camshaft edges is implausible. Then failure counter increments. If this exceeds a threshold then a fault is declared

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

> 12

Jaguar Land Rover Limited

Page 142 of 173

Cam and Crankshaft Sensor Monitoring Component/System

Fault Code

Exhaust Camshaft Sensors Camshaft EpmCaSO1No P0367 position SigMn sensor B Cct low

Malfunction Strategy Description

Malfunction Criteria

Detection of a missing camshaft signal, no signal edge present Level on the input is low

In between of several crankshaft revolutions there is not any camshaft edge present then a failure counter increments. If this exceeds a threshold then a fault is declared

Camshaft position sensor B Cct high

EpmCaSO1No P0368 SigMax

Detection of a missing camshaft signal, no signal edge present Level on the input is high

Camshaft position sensor B Cct range / performance

EpmCaSO1 P0366 ErrSig

Detection of a disturbed Camshaft signal, number and / or position of the camshaft edges implausible

In between of several crankshaft revolutions there are too many or too less camshaft edges present or the distance or series of the camshaft edges is implausible. Then failure counter increments. If this exceeds a threshold then a fault is declared

Variable Valve Timing ENWSEmax P2089 Intake Valve control ENWSEmin P2088 solenoid ENWSEsig P0010 Circuit continuity

Short to battery Short to ground Open circuit

Power stage internal check

ANWSEmax P2091 ANWSEmin P2090 ANWSEsig P0013

Short to battery Short to ground Open circuit

Power stage internal check

(EpmCaS_Diag)

Exhaust Valve control Solenoid Circuit continuity

Threshold Value

Time Req.

MIL illum.

Cranking or Engine started and running.

5 revs

2 Drive Cycles

Cranking or engine started and

0.2 s

Secondary Parameters

Enable Conditions

Engine Speed -

Engine speed -

>8

> 12

(DNWSE)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 143 of 173

Cam and Crankshaft Sensor Monitoring Component/System

Fault Code

Camshaft position check Inlet EpmCaSI1OfsErr P0016 camshaft offset error (offset) Exhaust EpmCaSO1OfsErr P0017 camshaft offset error (offset)

Malfunction Strategy Description

Malfunction Criteria

Continuous check of the angle offset determination of the angle offset between crankshaft and inlet camshaft sensor.

Continuous check of the angle offset determination of the angle offset between crankshaft and exhaust camshaft sensor.

Average offset angle

Inlet camshaft installation error (mount)

EpmCaSI1Mnt P0016 Err

End of line position check

Exhaust camshaft Installation error (mount)

EpmCaSO1 P0017 MntErr

End of line position check

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Engine Speed -

Cranking or Engine started and

5revs

2 Drive Cycles

5revs

1 Drive Cycle

running.

> 5.3 °CrS < -9.9 °CrS Average offset angle > 5.3 °CrS < -9.9 °CrS

If the average difference angle of the adapted positions to < - 15.2 °CrS > 10.6 °CrS the applied positions exceeds limits a mount error is set.

If the average difference angle of the adapted positions to < -15.2 °CrS > 10.6 °CrS the applied positions exceeds limits a mount error is set.

Fault Codes that disable P0016 P0341, P0343, P0342, P06A7, (mount) P0016 (OfsErr), P0336, P0335 Fault Codes that disable P0017 P0366, P0368, P0367, P06A7 , (mount) P0017 (OfsErr), P0336, P0335

(EpmCaS_OfsDia)

Range Rover Evoque & Land Rover Freelander

Fault Codes that disable P0016 P0341, P0343, P0342, P0016 (OfsErr) (MntErr), P0336, P0335 Fault Codes that disable P0017 P0366, P0368, P0367, P0017 (OfsErr) (MntErr ), P0336, P0335 Engine speed Cranking or engine started and running End of line test requested, ECM new or re-programmed

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 144 of 173

Cam and Crankshaft Sensor Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

1s

2 Drive Cycles

Camshaft actuator locking pin check Intake camshaft position correlation : locking pin

NWVPEnpl P0016 Monitors camshaft actuator whether it is able to keep the locking position when using a locking pin (start) during engine start

NWVPAnpl P0017 Exhaust camshaft position correlation : locking pin

As above

Engine speed Real intake camshaft position average

> 10 °CrS

Real exhaust camshaft position average

> 10 °CrS

(start)

Cranking or Engine started and running. >1s

Time after end of start Adjustment demand has not been made.

Difference of the commanded camshaft position to the locked < 2 °CrS camshaft position Fault Codes that disable P0016 P0341, P0343, P0342, P06A7, (npl) P000A, P0011, P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P2089, P2088, P0010, P0336 , P0335 Cranking or Engine started and Engine speed running Time after end of start >1s Adjustment demand has not been made.

Difference of the commanded camshaft position to the locked < 2 °CrS camshaft position

(DNWVP) Fault Codes that disable P0017 P0366, P0368, P0367, P06A7, (npl) P000B, P0014, P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P2091, P2090 , P0013, P0336, P0335

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 145 of 173

1s

13.4. Variable Valve Timing Monitoring Tables Variable Valve Timing Monitoring Component/System

Fault Code

Variable Valve Timing Intake Camshaft Control

Cct range/performance (target error or stuck)

ENWSsig P0011

(Slow response)

ENWSnpl P000A

Malfunction Strategy Description The intake camshaft adjustment is monitored by checking the camshaft adjustment angles.

Two possible error patterns exist : ‘target error or stuck’ and ‘slow response’

(DNWSEIN)

Malfunction Criteria

Threshold Value

Initially, the sign-dependant See difference between set point value KFDWNWDMXE( and actual value is compared to a table) threshold dependant on oil And temperature and engine speed. If this is exceed the an initial error KFTDDNWNPE flag is raised (table) In case of the error “Target Error”, If the actual angle difference is smaller than a threshold, then a < 2 °CrS ‘target error’ counter is incremented. If counter reaches the 4 maximum possible number then a target error flag is set In case of the error “ Slow response “, If the actual angle difference is greater than a threshold, then a ‘slow response’ counter is incremented. If counter reaches the maximum possible number NWFMXE (4) then Slow response flag (B_lcnpenw) is set

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Oil temperature -

-9.8 °C < toch < 139.5 °C

5 revs

2 Drive Cycles

Engine speed -

600 rpm < nmot < 6000 rpm

no catalyst heating with help of camshaft adjustment active.

After start timer -

> 10 s

< 2 °CrS 4

Fault Codes that disable P0011 & P0341, P0343, P0342, P06A7, P000A P2089, P2088, P0010, P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P0336, P0335

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 146 of 173

Variable Valve Timing KFDWNWDMXE - Maximum deviation in camshaft position for error entry intake y input x input y output w

rpm °C °CrS

x -10.5 20.3 110.3 114.8 120

800 8 8 8 8 10

1600 8 8 8 8 10

2520 8 8 8 8 10

3520 8 8 8 8 10

4520 8 8 8 8 10

6000 8 8 8 8 10

KFTDDNWNPE - Debouncing time for setting the error non-plausible position of intake camshaft y input x input y output w

rpm °C °CrS

x -10.5 20.3 110.3 114.8 120

800 4 4 4 4 4

Range Rover Evoque & Land Rover Freelander

2000 4 4 4 4 4

4000 4 4 4 4 4

JLR 19 39 18_1E

6000 4 4 4 4 4

Jaguar Land Rover Limited

Page 147 of 173

Variable Valve Timing Monitoring Component/System

Fault Code

Variable Valve Timing Exhaust Camshaft Control

cct range/performanc e (target error or stuck)

(Slow response)

ANWSsig P0014

ANWSnpl P000B

Malfunction Strategy Description

Malfunction Criteria

The exhaust camshaft adjustment is monitored by checking the camshaft adjustment angles.

Two possible error patterns exist : ‘target error or stuck’ and ‘slow response’

Initially, the sign-dependant difference between setpoint value and actual value is compared to a threshold dependant on oil temperature and engine speed. If this is exceeded for a oil and engine speed dependent time an initial error flag is raised In case of the error “Target Error”, If the actual angle difference is smaller than a threshold, then a ‘target error’ counter is incremented. If counter reaches the maximum possible number then a target error flag is set In case of the error “ Slow response “, If the actual angle difference is greater than a threshold, then a ‘slow response’ counter is incremented. If counter reaches the maximum possible number then Slow response flag is set

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

See

Oil temperature -

-9.8 °C < toch < 139.5 °C

5 revs

2 Drive Cycles

(table)

Engine speed -

600 rpm < nmot < 6000 rpm

and

No catalyst heating with help of camshaft adjustment active.

KFDWNWDMXA

KFTDDNWNPA

(table)

After start timer -

> 10 s

< 2 °CrS 4

< 2 °CrS 4

(DNWSAUS) Fault Codes that disable P0014 & P0366, P0368, P0367, P06A7), P000B P0016 (MntErr), P0016 (OfsErr), P0017 (MntErr), P0017 (OfsErr), P0336, P0335, P2091, P2090, P0013

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 148 of 173

Variable Valve Timing KFDWNWDMXA - Maximum deviation in camshaft position for error entry outlet y input x input y output w

rpm °C °CrS

x -10.5 20.3 110.3 114.8 120

1520 12 12 12 12 12

1600 10 10 10 10 10

2520 10 10 10 10 10

3520 10 10 10 10 10

4520 10 10 10 10 10

6000 10 10 10 10 10

KFTDDNWNPA - Debouncing time for setting the error non-plausible position of outlet camshaft y rpm °C sec

x -10.5 20.3 110.3 114.8 120

800 4 4 4 4 4

Range Rover Evoque & Land Rover Freelander

2000 4 4 4 4 4

4000 4 4 4 4 4

JLR 19 39 18_1E

6000 4 4 4 4 4

Jaguar Land Rover Limited

Page 149 of 173

13.5. Idle Speed Control Monitoring Table Idle Speed Control Monitoring Component/System

Fault Code

Idle Speed Control LLRHmin / LLRKHmin P0506 LLRHmax / LLRKHmax P0507

Malfunction Strategy Description

Malfunction Criteria

Idle speed lower than expected

Idle speed below target

Idle speed higher than expected Idle speed not oscillating

LLRHnpl / LLRKHnpl P0505

(DLLR)

A code differential is made for catalyst heating or normal running phases

Threshold Value

> 100 rpm

Idle speed above target > 200 rpm Idle seep not oscillation above and Idle speed + below thresholds 200 rpm and Idle speed 100 rpm

Secondary Parameters

Enable Conditions

Engine Speed Engine temperature Altitude Afterstart timer Ambient temperature -

Cranking or Engine started and running. > -9.8 °C < 8800 ft. > 10 s > -9.8 °C

Vehicle speed -

<= 0 mph

Accelerator Peddle position closed.

Fault codes that disable P0505 P2103, P0501, P0502, P007D, (KH), P0506 (KH) & P0507 (KH) P007C, P007E, P0336, P011C (CSmax), P011C (CSmin), P007B (Rmax), P007B (Rnpl), P0016 (MntErr), P054A , P052A, P0116 (CSmax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0366, P0368, P0367, P0341, P0343, P0342, P0459, P0458, P0444, P0017 (MntErr), P0014, P0011, P0017 (OfsErr), P2091, P2090, P0013, P2089, P2088, P0010, P0016 (OfsErr), P0336, P0335

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 150 of 173

Time Req.

MIL illum.

15s

2 Drive Cycles

10s

13.6. Wastegate Monitoring Table Wastegate Monitoring Component/System

Fault Code

Wastegate solenoid circuit LDEmax P0246 LDEmin P0245 LDEsig P0243 (DLDE)

Malfunction Strategy Description

Malfunction Criteria

Short to battery Short to ground Open circuit

Power stage internal check

Range Rover Evoque & Land Rover Freelander

Threshold Value

Secondary Parameters Engine started and running.

Battery voltage -

JLR 19 39 18_1E

Enable Conditions

Jaguar Land Rover Limited

> 11 v

Page 151 of 173

Time Req.

MIL illum.

0.2 s

2 Drive Cycles

13.7. Oil Temperature Sensor Monitoring Table Oil Temperature Sensor Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Electrical high input TOSPEmax P0198

Out of range check

Oil voltage (-40.0 °C)

Check

Out of range check

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

1s

2 Drive Cycles

Oil Temperature Sensor low input TOSPEmin P0197 Plausibility –TOSPEnpl P0195

Warm-Up Check

(DCTOSP) TOSPRmax P0196 TOSPRmin

Fully-Warm Check

TOSPRmax P0196 TOSPRmin (DPLTOSP)

Range check at start

TOSPCSmax P012F TOSPCSmin (DOTMCS)

Oil voltage (160.0 °C) for Test for a loose connector/ Changes in temperature are intermittent fault and compares a normally not rapid. If the difference raw and filtered sensor reading. exceeds a threshold then a fault is declared.

Actual oil temperature is If the difference between actual continuously subtracted from oil temperature and modeled oil Modeled oil temperature temperature is greater than a calibratable amount for a period of time then declare a fault Actual oil temperature is If the difference between actual continuously subtracted from oil temperature and modeled oil Modeled oil temperature temperature is greater than a calibratable amount for a period of time then declare a fault If the sensor value minus the A comparison of Oil temperature average value is greater than a against the average of TFA1, TFA2, threshold for any period of time then ECT1 and Oil sensor values at declare afault engine start

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

> 4.9 v

Ignition switch -

On

< 0.06 v >1s

Battery voltage -

> 10.5 v

0.3 v

Ignition switch -

On

> 31 °C < -27 °C for 10 s

Ignition switch Model state -

On Warm up

> 29 °C < -34 °C for 10 s > +/-20 °C for >2s

Ignition switch -

On

Model state -

Fully warm

Ignition switch -

On

Battery voltage > 10.5 v Engine OFF period – > 8 hours Block heater not detected Refer to TAVDCSmax P011C Fault Codes that disable P0196 P0198, P0197, P0195, P0336, (Rmax) & (Rmin) P0335 Fault Codes that disable P012F P0113, P0112, P0114, P0198, (CSmax) & (CSmin) P0197, P0195, P007D, P007C, P007E, P0118, P0117

Jaguar Land Rover Limited

Page 152 of 173

0.2 s

0.2 s

13.8. Ambient Temperature Sensor Monitoring Tables Ambient Temperature Sensor Monitoring Fault Code

Component/System

Ambient Temperature Sensor Range Check TUMEmax P0072 TUMEmin P0073

Malfunction Strategy Description

Malfunction Criteria

Amb TS Amb TS For TUMPnpl P0071 Actual ambient temperature Is If difference is above threshold compared against model for any time fault is declared temperature

Plausibility

Out of range check Out of range check

Threshold Value

> 110 °C < -45 °C >4s +/- 22 °C > 10 s

(BGTUMG)

Secondary Parameters

Enable Conditions

Ignition switch Battery voltage -

On. > 10.5 v

Engine started and running.

Vehicle speed Coolant temp -

Time Req.

MIL illum.

4s

2 Drive Cycles

30 s

> 31 mph 80 °C < tmot < 104 °C 52 kg/h < amf < Air mass flow KLMLNMOTMX (table) Intake Air Temperature -48 °C < iat < 55 °C Fault Codes that disable P00CE (CSmax), P00CE P0071 (CSmin), P0111 (Rmax), P0111 (Rmin), P2610, P0181 (Rmax), P0181 (Rmin), P0181 (Rnpl), P0181 (Rsig), P0072, P0073, P0113, P0112, P0114, P0103, P0102, P0100, P0101 (Rmax), P0101 (Rmin), P0501, P0502, P0335, P0116 (CSmax), P0116 (CSmin), P0116 (Pmax), P0116 (Pmin), P0116 (Pnpl), P0118, P0117

KLMLNMOTMX - max. Value for ml_w for valid model of amdient airtemperature

input x output w

rpm kg/h

760 72

1000 92

Range Rover Evoque & Land Rover Freelander

2000 188

3000 280

JLR 19 39 18_1E

4000 372

5000 464

6000 560

Jaguar Land Rover Limited

7000 652

Page 153 of 173

13.9. Knock Sensor Monitoring Table Knock Sensor Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Signal Check

Checks that the signal from the knock sensor can be used by the knock control system and is not being corrupted by a short circuit Monitor measures the sensor signal voltage and compares it against a threshold which could only be breached if the signal in an error state

Threshold Value

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Engine speed Knock control is active.

> 1600 rpm

0.2 s

2 Drive Cycles

Knock Sensor DKRSA P0324 (DKRSA)

KnDetSens1PortAMax / Bmax P0328 Short circuit sensor 1 Vbatt KnDetSens1PortAMin / BMin P0327 Short circuit sensor 1 ground KnDetSens2PortAMax / Bmax P0333 Short circuit sensor 2 Vbatt KnDetSens2PortAMin / Bmin P0332 Short circuit sensor 2 ground (KnDetLTest) KS1max P0328 Monitors knock sensor voltage for Knock sensor voltage measured for KS1min P0327 knock sensor 1. Monitor checks for knock sensor 1, is standardized harness breaks, disconnected according to the measured voltage sensors or short circuit of wires to and power stage amplification value power or ground. being used. Standardized value is compared with a value, mapped against engine speed.

Fault is raised if standardized knock sensor voltage is greater(max) or less (min) than the mapped value for 3 seconds

3s

KS2max P0333 Monitors knock sensor voltage for Knock sensor voltage measured for KS2min P0332 knock sensor 2. Monitor checks for knock sensor 2, is standardized harness breaks, disconnected according to the measured voltage (DKRS) sensors or short circuit of wires to and power stage amplification value power or ground. being used. Standardized value is compared with a value, mapped against engine speed.

Fault is raised if standardized knock sensor voltage is greater(max) or less (min) than the mapped value for 3 seconds

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 154 of 173

13.10. Throttle Monitoring Tables Throttle Monitoring Component/System

Fault Malfunction Strategy Description Code

Throttle Monitoring Throttle Assembly DVEEmax P2103 Fault DVEEmin P2108

Throttle motor harness or throttle driver shorted high or low.

Throttle motor overcurrent

Power stage internal check

DVEEnpl P2101 Motor harness / assembly shorted together or driver shorted positive to negative.

DVEEsig P2100 Throttle motor open circuit.

Power stage internal check

Throttle valve 1st DK1Pmin P0122 potentiometer DK1Pmax P0123 DK1Pnpl P0121

Throttle valve 2nd DK2Pmin P0222 potentiometer DK2Pmax P0223 DK2Pnpl P0221

Difference fault between throttle sensor 1 and 2

Malfunction Criteria

DKnpl P2135 (DDVE)

Voltage check

Throttle position sensor check

Voltage check Throttle position sensor check

Error state

Power stage internal check

Threshold Value +/- 80% for > 0.6 ms

Secondary Parameters

Enable Conditions

Ignition switch Battery voltage -

On >8v

Time Req.

MIL illum.

0.6 s

2 Drive Cycles

Power stage internal check Throttle position sensor 1 is checked to be within valid range.

5s 0.17 v ~ 4.6 v

Sensor 1 differs from Sensor 2 TPS1 differs from calculated throttle > 6.3 %. position by (calculated from air >9% charge) Throttle position sensor 1 is checked to be within valid range. 0.17 v ~ 4.6 v

0.5 s

Sensor 1 differs from Sensor 2 TPS2 differs from calculated throttle position by (calculated from air charge) Error reported if error state in either throttle position sensor reported

0.5 s

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

5s

> 6.3 %. >9% 0.5 s

Jaguar Land Rover Limited

Page 155 of 173

Throttle Monitoring Component/System

Fault Malfunction Strategy Description Malfunction Criteria Code

Threshold Value

Throttle Monitoring (cont) Return spring DVEAsig P2119 During initialisation the spring check The throttle is opened >12% above check open DVEFmax is performed limphome position. If this is not & check closed achieved within 0.20s a fault stored.

At >12% the powerstage is disabled and the return spring should naturally close the throttle. If a position >3% of limphome position present after 0.7s a fault is logged. limphome air DVENnpl P2119 Adaption position check – limphome Limphome position should be.

1.8 % ~ 17.5 % position position plausibility or or TPS1 voltage at limphome position 0.15 v ~ 0.16 v should be within.

DV-E position DVELnpl P061F Requested/actual throttle position Requested throttle position deviates >4% deviation comparison from measured throttle position by a for factor > 0.5 s Note if the engine is not running and the engine or ambient < 5 °C and temperature below threshold an additional 3 % extra factor is added DLR outside DVERmax P2112 Throttle motor duty check Throttle motor PWM signal valid control exceeding a threshold for given DVERmin P2111 +/- 80 % for range t period > 0.6 s Incorrect throttle DVEUBmax P2176 adaption DVEUBmin DVEUnpl DVEUWnpl

Throttle adaption check

Adaptions not set

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Ignition switch -

On

1s

2 Drive Cycles

1s

Engine started and running.

Battery voltage Ignition switch -

0.5 s >8v On

0.6 s

Full ECU power down followed by ignition On without starting engine Battery voltage -

ignition off > 60 s for 30 s > 10 v

(DDVE)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 156 of 173

30 s

Throttle Monitoring Component/System

Fault Code

Acceleration Pedal Position device driver Sensor 2 Signal Range SRCHighAPP2 P2128 Check High for APP2 Signal Range SRCLowAPP2 P2127 Check Low for APP2 (APP_DD2) Acceleration Pedal Position device driver Sensor 1 Signal Range SRCHighAPP1 P2123 Check High for APP1 Signal Range SRCLowAPP1 P2122 Check low for APP1 (APP_DD1) Acceleration Pedal Position Plausibility Plausibility SyncAPP P2138 Check between APP1 and (APP) APP2

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

PWM Frequency check

If duty Cycle is above threshold for a time period then high fault declared If duty Cycle is below threshold for a time period then low fault declared

> 94 % for > 0.25 s <4% for > 0.25 s

PWM Frequency check

Can signal check

Can signal check

Signal comparison

The analogue signal should be in the range 6% to 90%. I the signal is above a threshold the signal is deemed high The analogue signal should be in the range 6% to 90%. I the signal is below a threshold the signal is deemed high

Both accelerator pedal inputs (analogue & PWM) should be within a threshold for a time period.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Ignition switch -

On

0.25 s

2 Drive Cycles

0.25 s

Ignition switch -

On

1s

> 94 % 1s <4%

0.4 s <6% > 0.4 s

Ignition switch -

Jaguar Land Rover Limited

On

Page 157 of 173

13.11. ECM Monitoring Tables ECM Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

EEPROM performance (erase), (read) & (write)

EEPROM emulation lifetime exceeded

Threshold Value

Secondary Parameters

Enable Conditions

ECM Monitoring EEPEraseErr EEPRdErr P062F EEPWrErr Monitoring MoCComctEr module error. rMM P060A Injection quantity MoFAirFlCtO limitation. ff Check of cylinder individual fuel MoFAirFlCyl corrections.

Check of MoFAirFilgPr predicted air dc mass failed.

Sensor in mixture MoFGkc check.

Comparison of lambda and MoFModc operation mode.

ECU fault or sensor in rlMoFRlc comparison.

MonUMaxSupply1 Supply Voltage MonUMinSupply1

Internal software fault of the ECM

Internal error reaction checks indicate that the software is not functioning as expected Diagnosed ECU fault which leads to an injection quantity limitation.

Individual cylinder fuel corrections were found not plausible, internal software error.

P061D

Internal ECU check (FlCtOff)

P061D

Cylinder fuel correction check (FlCyl)

P061D

(FilgPrdc)

Predicted air mass was found not plausible, internal software error

P0169

Mixture correction factor check (Gkc)

Plausibility check of the mixture correction factors

P0169

Fuelling mode check (Modc)

Incorrect fuelling mode active, internal software error

P0169

Relative fuel mass check (Rlc)

Relative fuel mass not plausible, internal software error.

Internal ECU check - supply voltage check Internal ECU check - Monitoring of injection cut off from level1 (FICOL1) Internal ECU check - Monitoring of injection cut off from level2 (FICOL2) Internal ECU check - throttle drive communication WDA/ABE. (Actv), (Com) & (OvrVltg)

Max voltage Min voltage Internal error reaction checks indicate that the software is not functioning as expected Internal error reaction checks indicate that the software is not functioning as expected

P0563 P0562

MoFICOL1 P0606

MoFICOL2 P0606 OCWDAActv, OCWDACom & P0606 OCWDAOvrVltg

> 5.2 v <5v

Internal check to ensure throttle driver communication is plausible

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 158 of 173

Time Req.

MIL illum.

ECM Monitoring Component/System

Fault Code

ECM Monitoring (cont) Monitoring of MoFAPP P060D accelerator pedal position.

Fault of engine MoFESpd P060C speed check.

ECU fault ignition timing.

Fault of torque – comparison.

Malfunction Strategy Description

Malfunction Criteria

Compares both accelerator pedal if the difference between each signal inputs against each other is greater than allowed Engine speed calculation based upon ignition angle monitor Internal software error.

Calculated speed is compared with measured engine speed Engine speed calculation was found not plausible MoFZwc P061C Torque check Torque changes for given ignition change are compared MoFTrqCmp P061A Delivered / requested torque check Delivered Torque not plausible to requested torque, internal software error.

Threshold Value

> 3.91 % > 320 rpm

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Ignition switch -

On.

0.1 s

Battery voltage -

> 10.5 v

2 Drive Cycles

Engine started and running.

0.1 s

> 11.0

13.12. Vehicle Speed Determination Monitoring Table Vehicle Speed Determination Monitoring Component/System

Fault Code

Malfunction Strategy Description

Malfunction Criteria

Vehicle Speed Determination Plausibility VFZPmax & P2162 Compares ABS and TCM Vehicle Fault confirmed if signals not vehicle speed VFZPmin speed signals for max and min error comparable reference signal (max) & (min) Electrical fault in VFZEmax P0501 Checks the vehicle speed from the If the vehicle speed exceeds a vehicle speed ABS threshold signal from ABS VFZEmin P0502 This checks that the ABS speed Works on the principle that the ABS changes. signal contains noise and no 2 (DVFZ) values should be the same

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Threshold Value

Secondary Parameters

Enable Conditions

Time Req. .2 s

> 140 mph

Jaguar Land Rover Limited

Page 159 of 173

MIL illum.

2 Drive Cycles

13.13. Network Management Monitoring Tables Network Management Monitoring Component/System

Fault Code

Network Management Communication NodeMon_ABS U0121 Lost With ABS Control Module Wheel speed signal quality check from ABS Module Value of MinuteCounter is not plausible

VehV_FL C0031 VehV_FR VehV_RL C0034 VehV_RR C0037 C003A GlbDaTiPlaus P2610

MinuteCounter signal not available via CAN Engine off timer check

GlbDaTiSig P2610

Malfunction Strategy Description CAN signals missing from ABS module.

Malfunction Criteria

Secondary Parameters

Enable Conditions

ABS CAN ID not received.

MIL illum.

0.1 s

2 Drive Cycles

Wheel speed quality factor check Wheel speed signal quality factor insufficient

Can Signal Check

Can signal not available

0.1s No signal

Can Signal Check

Can signal not available No signal

BGTENGSCheck P2610 Engine Off Time is not plausible in comparison with real shutdown period.

Generates estimated engine off time from cool down rate of engine coolant and compares this value against body control module estimate of engine off time

Plausibility of Checksum from ABS ECU not faulty ABS Vehicle speed alive counter signal BrkABSCRC8PlausErr U0415 equal to ECU internal calculated Checksum check from ABS module. vehicle speed signal checksum transmission Function MoCADCNTP P060B Check for correct conversion of A known voltage pulse signal is monitoring: cyclic voltage signal applied and expected conversion fault of ECU verified ADC- low idle test pulse MoCADCTst P060B

Time Req.

No ID.

Plausibility fault Vehicle speed alive counter signal Vehicle speed alive counter signal from ABS alive BrkABSAlivePlausErr U0415 check from ABS module. loss or timing error. counter

Function monitoring: fault of ECU ADC - test voltage

Threshold Value

Check for correct conversion of fixed voltage signal

Range Rover Evoque & Land Rover Freelander

>3600 s

Not equal

Not equal

The ADC-test voltage-check reads a fixed test voltage and checks the converted value for valid values

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 160 of 173

Network Management Monitoring Fault Code

Malfunction Strategy Description

Malfunction Criteria

Threshold Value

CAN Bus NM_BusOffA Communication

U0001

Can Signal Check

CAN High shorted to ground CAN low shorted to +12v

Signal high/low

Initialization of CAN/LIN controller

Nm_CtIInit Nm_SysInit

U1A14

CAN/LIN communication check

Fault set when Volcano layer isn't able to initialize.

CAN level (Nm_Std)

Nm_IDCheck

U0300

Rationality check

Comparison between CAN level of TCM and CAN level of Vehicle

Component/System

Secondary Parameters

Enable Conditions

Time Req.

MIL illum.

Ignition switch -

On

0.1 s

2 Drive Cycles

Battery voltage -

> 10.5 v

Network Management

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Not equal

Jaguar Land Rover Limited

Page 161 of 173

14.

Additional Information 14.1.

Diagnostic Test Mode Compliance

The OBD system of the engine and gearbox control modules uses ISO standard 15765-4 to communicate with off board test equipment.

The messages comply with SAE J1979, modes $01 through $04, modes $06, $07, $09 and $0A (permanent fault codes).

The basic algorithm used by the ECM for the calculation of the Calibration Verification Number has previously been used by Land Rover in the 2005 model year Range Rover. This was approved by ARB staff at a meeting on November 4th, 2003. The algorithm has had some minor changes since 2005. The memory area is now split into three ranges and the start and finish points for these ranges are varied by Bosch for different applications. A single CVN is now reported, in order to comply with the requirement for a single CAL ID, and one CVN for that CAL ID. The algorithm used by the TCM for the calculation of the Calibration Verification Number was also approved by ARB staff at the meeting on November 4th, 2003.

The VIN reported to a scan tool in response to a Mode$09, PID$02 request is programmed once only when a vehicle is built or if a new ECM is fitted. This is in order to comply with (g)(4.8.2).

The read-out and the deletion of fault information is also possible using “SDD” service equipment. Please refer to a Jaguar or Land Rover repair manual or the service repair information websites at: http://topix.landrover.jlrext.com/topix/i18n/index

14.2.

Stored Engine Conditions - Mode$02

The engine conditions present at the time of fault detection are stored in the ECM memory according to the requirements of the OBD regulation.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 162 of 173

14.3.

Inspection and Maintenance Test Readiness Setting

14.3.1.

Introduction

OBD II systems are required to report if a vehicle has completed its major diagnostic, since its fault memory was last cleared. This is often referred to as "readiness".

Readiness will also be reset if the battery is disconnected or discharged and by re-programming or replacement of the engine control module.

State vehicle emissions test programs usually require that readiness is set as a condition of a vehicle passing their test. This is because they need to know that the diagnostics have had the chance to find a fault, if one is present.

14.3.2.

Readiness Setting

Determining Readiness for I/M Testing In the majority of cases, readiness will be set during normal use of the vehicle. Scan tools report this information as "Monitor status since DTC’s last cleared" or similar.

The scan tool will list which of the main monitors are supported and which of these "non-continuous monitors" are "complete" or "ready". The scan tool may also list continuous monitors, such as misfire and fuel system monitoring, but these will always report as complete. (This information is reported under Service $01, PID$01, data bytes C and D according to the SAE scan tool communications standard).

This information allows a technician to identify which monitors are not ready and to operate the vehicle so that these monitors have the best chance of completion.

Data on the "enable conditions" for individual diagnostics is already included in Land Rover's On-Board Diagnostics guide for this test group, but the following table is intended as a brief guide as to which diagnostics must run to set readiness under each of the categories reported by a scan tool and the basic driving conditions for those monitors.

In addition to these basic parameters, many monitors will not run at abnormal conditions (e.g. high altitude or low ambient temperatures).

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 163 of 173

Relevant DTC’s (monitors that must run to set readiness)

Monitor Operation Conditions

CAT_ RDY

P0420

Drive the vehicle until the engine is fully warm. The vehicle must then be driven at a steady speed and throttle on level terrain with the engine speed between 1250 and 2500 rpm for at least 30 seconds.

HCAT_SUP: NO

Not relevant

EVAP_SUP: YES

EVAP_ RDY

Not applicable to these test groups P0496, P0497, P0456, P2405, P2407, P2404, P2406, P0442, P144B

Secondary Air Injection Monitoring A/C System Refrigerant Monitoring Oxygen Sensor Monitoring

AIR_SUP: NO

Not relevant

O2S_SUP: YES

O2S_ RDY

P0132, P0131, P2626, P2237, P2243, P2251, P0606, P0134, P0133, P2231, P0138, P0137, P0136, P0141, P0140, P0139, P013E, P013A, P2096, P2097

Oxygen Sensor Heater Monitoring

HTR_SUP: YES

HTR_ RDY

EGR and/or VVT System Monitoring

EGR_SUP: YES

EGR_RDY

P0135, P00D1, P0030, P0031, P0032, P0054, P0038, P0037, P0036 P000B, P0017, P0026, P000A, P0016, P0027

Diagnostic

Typical Scan Tool Display for Support Status

Typical Scan Tool Display for Completion Status

Catalyst Monitoring

CAT_SUP: YES

Heated Catalyst Monitoring Evaporative System Monitoring

Engine must have been off for sufficient time to ensure that engine temperature is within 6 °C of ambient temperature, fuel level must be between 15 and 85%, ambient between 0 and 40 degrees Celsius, must drive for at least 10 minutes then leave with the ignition off for at least 15 minutes. May require more driving if the vehicle has been recently refuelled.

Not applicable to these test groups

No longer relevant, may be reported by older scan tools as "ACRF_SUP: NO" As for Catalyst Monitoring the vehicle must be driven until the engine is fully warm. The vehicle must then be driven at a steady speed and throttle on level terrain with the engine speed between 1250 and 2500 rpm for at least 30 seconds.

The drive cycle must also include a period of vehicle deceleration lasting at least 3 seconds, where the throttle pedal is completely released with the engine speed passing through 2500 – 1400 rpm band.

Start from cold and allow to idle for at least 2 minutes.

Drive the vehicle until the engine is fully warm.

Some scan tools will report the "Monitor Status this Driving Cycle", which shows if the above monitors are able to run during the current period of vehicle operation and if they have completed during the current drive. (Service $01, PID$41, data bytes C and D according to the SAE scan tool communications standard).

The vehicle must be operated safely and within all prevailing traffic regulations, when being driven according to the requirements of the above table.

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 164 of 173

14.4.

Communication of Monitor Test Results - Mode$06

Diagnostic test results are output to a scan tool in accordance with the requirements of Mode$06 of the SAE J1979 standard. The following tables show the allocation of monitor identifiers, test identifiers, unit and scaling identifiers and which DTCs are associated with each of the test results.

Two Oxygen Sensor System: OBD MID

On-Board Diagnostic Monitor Name

Test ID

00

OBD Monitor IDs supported ($01 - $20) Oxygen Sensor Monitor Bank 1 - Sensor 1

-

01

83 84

02

Oxygen Sensor Monitor Bank 1 - Sensor 2

05 81 82 86

20 21 35

OBD Monitor IDs supported ($21 - $40) Catalyst Monitor Bank 1 VVT Monitor Bank 1

84 83

81 80 85

EVAP Monitor (0.040”) EVAP Monitor (0.020”)

Unit & Scaling ID

Associate d DTC

Pre-catalyst oxygen sensor response test Pre-catalyst oxygen sensor offset test Post-catalyst oxygen sensor response test Post-catalyst oxygen sensor oscillation test Post-catalyst oxygen sensor oscillation test Post-catalyst oxygen sensor response test

05

P0133

85

P2096

10

P013A

0A

P0140

0A

P0140

10

P013A

01 9C

P0420 P0027

9C

P0027

9C

P0026

9C

P0026

9C

P0017

9C 01 05

P0016 P0442 P0456

-

82

3B 3C

Description

84 86 84

Catalyst oxygen storage capability Exhaust camshaft control slow response test Exhaust camshaft control target error test Inlet camshaft control slow response test Inlet camshaft control target error test Exhaust camshaft locking control test Inlet camshaft locking control test Rough leak Small leak

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 165 of 173

OBD MID

On-Board Diagnostic Monitor Name

Test ID

Description

3D

Purge Flow Monitor

8D

Purge system low flow test using the DMTL Purge system stuck open test using the DMTL Purge system test for disconnection of the pre-turbo purge line

8C 8E

40 41

42

60 80 A0 A2

OBD Monitor IDs supported ($41 - $60) Oxygen Sensor Heater Monitor Bank 1 - Sensor 1 Oxygen Sensor Heater Monitor Bank 1 - Sensor 2 OBD Monitor IDs supported ($61 - $80) OBD Monitor IDs supported ($81 - $A0) OBD Monitor IDs supported ($A1 - $C0) Misfire Cylinder 1 Data

Misfire Cylinder 2 Data

Misfire Cylinder 3 Data

Misfire Cylinder 4 Data

P0496

0D

P144B

Pre-catalyst oxygen sensor heater performance test

16

P0135

81

Post-catalyst oxygen sensor heater resistance test

14

P0054

Exponential Weighted Moving Average for Cyl#1 Stored misfire event during last/current DCY for Cyl#1 Exponential Weighted Moving Average for Cyl#2 Stored misfire event during last/current DCY for Cyl#2 Exponential Weighted Moving Average for Cyl#3 Stored misfire event during last/current DCY for Cyl#3 Exponential Weighted Moving Average for Cyl#6 Stored misfire event during last/current DCY for Cyl#6

24

P0301

24

P0301

24

P0302

24

P0302

24

P0303

24

P0303

24

P0304

24

P0304

0B

0B

0B 0C

A5

0D

P0497

85

0C A4

Associate d DTC

-

0C A3

Unit & Scaling ID 0D

0B 0C

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 166 of 173

Three Oxygen Sensor System: OBD MID

On-Board Diagnostic Monitor Name

Test ID

00

OBD Monitor IDs supported ($01 - $20) Oxygen Sensor Monitor Bank 1 - Sensor 1

-

01

83 85 84

Description

Unit & Scaling ID

Associate d DTC

Pre-catalyst oxygen sensor response test Pre-catalyst oxygen sensor response test1 Pre-catalyst oxygen sensor offset test Oxygen sensor 2 transition time Oxygen sensor 2 offset lean Oxygen sensor 2 offset rich

05

P0133

05

P0133

85

P2096

10 0A 0A 10

P013A P2270 P2271 P013E

02

Oxygen Sensor Monitor Bank 1 - Sensor 2

05 83 84 85

03

Oxygen Sensor Monitor Bank 1 - Sensor 3

83

Oxygen sensor 3 offset lean

0A

P2274

84

Oxygen sensor 3 offset rich

0A

P2275

Catalyst oxygen storage capability Exhaust camshaft control slow response test Exhaust camshaft control target error test Inlet camshaft control slow response test Inlet camshaft control target error test Exhaust camshaft locking control test Inlet camshaft locking control test Rough leak Small leak

2F 9C

P0420 P000B

9C

P0014

9C

P000A

9C

P0011

9C

P0017

9C FE 3E

P0016 P0442 P0456

20 21 35

OBD Monitor IDs supported ($21 - $40) Catalyst Monitor Bank 1 VVT Monitor Bank 1

84 83 82 81 80 85

3B 3C

EVAP Monitor (0.040”) EVAP Monitor (0.020”)

84 8B 84

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 167 of 173

OBD MID

On-Board Diagnostic Monitor Name

Test ID

Description

3D

Purge Flow Monitor

8D

Purge system low flow test using the DMTL Purge system stuck open test using the DMTL Purge system test for disconnection of the pre-turbo purge line

8C 8E

Range Rover Evoque & Land Rover Freelander

Unit & Scaling ID 0D

Associate d DTC

0D

P0496

0D

P144B

JLR 19 39 18_1E

P0497

Jaguar Land Rover Limited

Page 168 of 173

OBD MID

On-Board Diagnostic Monitor Name

Test ID

40

OBD Monitor IDs supported ($41 - $60) Oxygen Sensor Heater Monitor Bank 1 - Sensor 1 Oxygen Sensor Heater Monitor Bank 1 - Sensor 2 Oxygen Sensor Heater Monitor Bank 1 - Sensor 3 OBD Monitor IDs supported ($61 - $80) OBD Monitor IDs supported ($81 - $A0) Fuel System Monitor

-

41

42

43

60 80 81

A0 A2

OBD Monitor IDs supported ($A1 - $C0) Misfire Cylinder 1 Data

Description

Unit & Scaling ID

Associate d DTC

85

Pre-catalyst oxygen sensor heater performance test

16

P00D1

81

Post-catalyst oxygen sensor heater resistance test

14

P0054

81

Post-catalyst oxygen sensor heater resistance test

14

P0055

A1 A3 A5 A7 -

Cylinder 1 imbalance monitor Cylinder 2 imbalance monitor Cylinder 3 imbalance monitor Cylinder 4 imbalance monitor

1E 1E 1E 1E

P219C P219D P219E P219F

0B

Exponential Weighted Moving Average for Cyl#1 Stored misfire event during last/current DCY for Cyl#1 Exponential Weighted Moving Average for Cyl#2 Stored misfire event during last/current DCY for Cyl#2 Exponential Weighted Moving Average for Cyl#3 Stored misfire event during last/current DCY for Cyl#3 Exponential Weighted Moving Average for Cyl#6 Stored misfire event during last/current DCY for Cyl#6

24

P0301

24

P0301

24

P0302

24

P0302

24

P0303

24

P0303

24

P0304

24

P0304

-

0C A3

Misfire Cylinder 2 Data

0B 0C

A4

Misfire Cylinder 3 Data

0B 0C

A5

Misfire Cylinder 4 Data

0B 0C

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 169 of 173

14.5. Drawing and Location of the Malfunction Indicator Light Range Rover Evoque

Malfunction Indicator Light (MIL)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 170 of 173

Landrover Freelander/LR2

Malfunction Indicator Light (MIL)

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 171 of 173

14.6. Location of the Data Link Connector The connector is located in the driver's foot well on the lower face of the dash assembly.

Range Rover Evoque & Landrover Freelander/LR2

Data Link Connector

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 172 of 173

Range Rover Evoque & Land Rover Freelander

JLR 19 39 18_1E

Jaguar Land Rover Limited

Page 173 of 173