Defender 50th Anniversary Electrical Library

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Electrical Library Elektrotechnische Bibliotheek librairie Electrique Elektrohandbuch libreria Impi an to Elettrico Biblioteca Electr6nica livra ria Electrica

LAND~

,;;ROVER

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Electrical Library

This Manual should be used in conjunction with the following publications: LRL 0185ENG LRL 0189ENG

Workshop Manual Electrical Circuit Diagrams

Publication Part No. LRL 0190ENG Published by Rover Technical Communication

Š 1998 Rover Group Limited

CONTENTS 1. INTRODUCTION ELECTRICAL PRECAUTIONS .. ... ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... .

ABBREVIATIONS .. .. ... .. ... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... .....

HOW TO USE THIS DOCUMENT ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... .

WIRE COLOUR CODES ..... .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... .

1.3 1.6 1.7 1.9

2. FUSE DETAILS INTRODUCTION ... ..... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ... . 2.1 Engine Compartment Fuse Box .... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... . 2.1 Passenger Compartment Fuse Box ... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... . 2.2

3. EARTH POINTS AND HEADER JOINTS Earth Points . ..... ..... ..... ..... .... ..... ..... ..... .... ..... ..... ..... .... ..... ..... ..... ..... .... . 3.1 Earth Headers .. ..... ..... ..... .... ..... ..... ..... ..... .... ..... ..... ..... .... ..... ..... ..... ..... 3.1

4. DESCRIPTION AND OPERATION ENGINE IMMOBILISATION .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... . 4.1 ANTI-THEFT ALARM ...... .... .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... . 4.3 CHARGING AND STARTING .. .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ... . 4.6 GENERIC ENGINE MANAGEMENT SYSTEM (GEMS) .. ... .. ... .... .. ... . 4.9 DIAGNOSTIC SOCKET .. .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ... 4.18 AIR CONDITIONING .. .. ... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ... 4.19 HEATER BLOWER .... ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... ... 4.22 HEATED REAR WINDOW (HRW) ..... .... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... ... 4.23 WIPERS AND WASHERS ... .. ... .. ... .. ... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... ... 4.24 EXTERIOR LAMPS - Brake and Reverse Lamps ..... .. ... .. ... .. ... .... .. .. 4.28 EXTERIOR LAMPS- Head, Side and Number Plate Lamps ... ..... ... 4.29 EXTERIOR LAMPS - Head lamp Levelling .. .. ... .. ... ..... .... .. ... .. ... ..... ... 4.32

Continued .....

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CONTENTS EXTERIOR LAMPS - Rear Fog Lamps .. .. ... .. ... .. ... ..... .... .. ... .. ... ..... ...

EXTERIOR LAMPS - Indicators I Hazard Warning Lamps .. ..... .... .. ..

INTERIOR LAMPS ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ..

INTERIOR ILLUMINATION ... ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ...

INSTRUMENTS .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ..

CIGAR LIGHTER ... ..... .... .. ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... .... .. ..

IN-CAR ENTERTAINMENT ... ... .. ... .. ... ..... .... .. ... .. ... ..... .... .. ... .. ... .. ... ...

4.33 4.35 4.38 4.40 4.41 4.43 4.44

5. CONNECTOR ........................................ Indexed by connector number

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INTRODUCTION This document is intended to assist in diagnosing electrical faults, and should be used in conjunction with the Electrical Circuit Diagrams. The document is divided into the following sections: 1. INTRODUCTION - includes Electrical Precautions, a list of Abbreviations and general information on how to use the document.

2. FUSE DETAILS- provides details of location, rating in Amps, wire colour and circuit(s) protected.

3. EARTH POINTS AND HEADER JOINTS - provides details of earth points, earth and power header joints, including a plan view of the vehicle to aid location.

4. DESCRIPTION AND OPERATION - provides an explanation of how each of the systems operate.

5. CONNECTOR- details of connectors including a location photograph, face view and pin-out table.

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NOTE: Before starting electrical checks on the vehicle, ensure that the relevant mechanical functions operate satisfactorily.

References References to the LH or RH side given in this document are made when viewing the vehicle from the rear.

Operations covered in this document do not include reference to testing the vehicle after repair. It is essential that work is inspected and tested after completion and, if necessary, a road test of the vehicle undertaken, particularly where safety related items are concerned.

li\. ~

CAUTION: Before undertaking any electrical work on a vehicle ALWAYS read the ELECTRICAL PRECAUTIONS detailed on page

1.3.

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1.1

INTRODUCTION Battery Voltage Before commencing diagnosis of electrical problems verify the condition of the battery is acceptable by using the open circuit voltage test.

Open circuit voltage test 1. Switch off all electrical loads on the vehicle.

2. Adjust digital multimeter to read de volts on the appropriate scale.

3. Connect test probes across battery terminals ensuring that polarity is correct and record the voltage displayed .

A reading of 12.3V or more is acceptable; any battery which reads less than this will need charging.

I\

NOTE: If the vehicle has been used within a period of 8 hours prior L..J to the test, surface charge must be removed from the battery by switching the headlamps on for approximately 30 seconds. Wait a further 60 seconds before checking the open circuit voltage.

Battery voltage is used as a known reference for ascertaining whether or not circuits are receiving sufficiently high voltage for components to function correctly. This reference is only a guide since most electronic circuits are designed to function over a wide range of voltages . In addition , consideration must be given to readings affected by voltage drop across certain components and fluctuations due to cable lengths.

1.2

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INTRODUCTION ELECTRICAL PRECAUTIONS General The following guidelines are intended to ensure the safety of the operator whilst preventing damage to the electrical and electronic components fitted to the vehicle . Where necessary, specific precautions are detailed in the relevant sections of this document, reference to which should be made prior to commencing repair operations .

Equipment- Prior to commencing any test procedure on the vehicle ensure that the relevant test equipment is working correctly and any harness or connectors are in good condition. This particularly applies to mains lead and connections .

WARNING: Before commencing work on an ignition system all high tension terminals, adapters and diagnostic equipment for testing should be inspected to ensure that they are adequately insulated and shielded to prevent accidental personal contact and to minimize the risk of shock. Wearers of surgically implanted pacemaker devices should not work in close proximity to ignition circuits or diagnostic equipment.

A

Polarity- Never reverse connect the vehicle battery and always observe the correct polarity when connecting test equipment.

High Voltage Circuits- Whenever disconnecting live ht circuits always use insulated pliers and never allow the open end of the ht lead to come into contact with other components particularly ECUs. Since high voltage spikes can occur on the terminals of the coil while the engine is running, exercise caution when measuring the voltage at these points.

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1.3

INTRODUCTION Connectors and Harness- The engine compartment of a vehicle is a particularly hostile environment for electrical components and connectors.

Always ensure these items are dry and oil free before disconnecting and connecting test equipment. Never force connectors apart either by using tools or by pulling on the wiring harness. Always ensure locking tabs are disengaged before removal and note orientation to enable correct reconnection . Ensure that any protective covers and substances are replaced if disturbed.

Before removing a faulty component, refer to the Workshop Manual for removal procedures. Ensure the starter switch is turned to the "OFF" position, the battery is disconnected (see Battery disconnecting) and any disconnected harnesses are supported to avoid any undue strain at terminals . When replacing the component keep oily hands away from electrical connection areas and push connectors home until any locking tabs fully engage.

Battery disconnecting Before disconnecting the battery, switch off all electrical equipment. If the radio is to be serviced, ensure the security code has been deactivated.

CAUTION: To prevent damage to electrical components ALWAYS disconnect the battery when working on the vehicle electrical system. The earth lead must be disconnected first and reconnected last. Always ensure that battery leads are routed correctly and are not close to any potential chafing points.

&

Battery charging Recharge the battery out of the vehicle and keep the top well ventilated. While being charged or discharged, and for approximately fifteen minutes afterwards, batteries emit hydrogen gas. This gas is inflammable.

Always ensure any battery charging area is well ventilated and that every precautions is taken to avoid naked flames and sparks.

1.4

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INTRODUCTION Disciplines Switch off ignition prior to making any connection or disconnection in the system as electrical surge caused by disconnecting 'live' connections can damage electronic components.

Ensure hands and work surfaces are clean and free of grease, swarf, etc. as grease collects dirt which can cause tracking or high-resistance contacts.

When handling printed circuit boards, treat them as you would a brake dischold by the edges only; note that some electronic components are susceptible to body static.

Connectors should never be subjected to forced removal or refit, especially inter-board connectors, damaged contacts will cause short-circuit and opencircuit conditions .

Prior to commencing test, and periodically during test, touch a good earth, i.e. cigar lighter socket, to discharge body static as some electronic components are vulnerable to static electricity.

Grease for electrical connectors All under bonnet and under body connectors are protected against corrosion by the application of a special grease on production. Should connectors be disturbed in service or repaired or replaced, a grease of this type , available under Part No. BAU 5811 , should again be applied .

6

NOTE: The use of other greases must be avoided as they can migrate into relays, switches etc. contaminating the contacts and leading to intermittent operation or failure.

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1.5

INTRODUCTION

ABBREVIATIONS

A ac A/C or Aircon BBUS Cav Cct Col de ECU ECM EGR EKA HRW IACV ICE LED LH LHD Link MFi RF RH RHO RWW SFi

TP

v

1.6

-Amps -Alternating current -Air conditioning -Battery backed up sounder -Cavity - Model or feature applicability -Colour - Direct current - Electronic control unit - Engine control module - Exhaust gas recirculation - Emergency key access - Heated rear window - Idle air control valve - In-car entertainment - Light emitting diode -Left hand - Left hand drive - Fusible link - Multipart fuel injection - Radio frequency -Right hand - Right hand drive - Rear wash wipe - Sequential fuel injection - Throttle position sensor -Volts

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INTRODUCTION HOW TO USE THIS DOCUMENT Fuse details Contains information on fuse functions and values and should be used together with the power distribution circuit diagrams to establish which systems share a common power supply and to ensure that correct value fuses are fitted .

Earth points and headers joints Shows a plan view of the vehicle including location of all earth points.

Supporting photographs and connector detail information appear in the Connector section.

Description and Operation Presented in the same order as the circuit diagrams are displayed in the Electrical Circuit Diagram folder, each of the descriptions contains a brief overview of the main system functions and includes operating parameters for sensors and switches and reference to the appropriate wire colours . Always read this section before starting work on a system so that a good understanding of system functionality is obtained.

Connector This section is effectively an index of every electrical connector on the vehicle, including header joints and eyelets. A page is dedicated to each connector, with the information presented in a standard format including display of the connector number on each page header to ease reference. Some derivatives within the model range may have connectors which have been allocated identical numbers to those already used, but are located in a different position on the vehicle . Where possible these connectors are displayed on adjacent pages together with an alternative location statement, a qualifying statement and an accompanying photograph.

Connector information comprises:

• • •

Connector Number- The assigned number, prefixed "C".

Connector Name- Usually derived from the component to which the connection is made.

Male/Female - If applicable, identifies the gender of the connector pins (NOT the housing) as Male or Female. Generally, connectors mating directly to a component have Female pins.

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1.7

INTRODUCTION •

• •

• •

Colour- If applicable, the colour of the connector housing is shown.

NATURAL is used to describe connectors with a clear/translucent plastic finish.

Location Statement- Used in conjunction with the photograph to determine the location of the connector.

Photograph- Shows the location of the subject connector. In most cases, the photograph will indicate the amount of trim removal necessary to reveal the connector. For convenience some photographs identify more than one connector.

Derivatives- Unless specified otherwise , location statements and photographs relate to all models.

Face View- An outline of the connector housing, viewed from the front, showing pin numbers (if applicable).

YPC1 0070

•

Pin-out Table- A three column table, detailing the colour and position of each wire in the connector: Cav

Col

CCT

1

GR

ALL

2

B

ALL

1. Cav:The connector pin (cavity) number.

2. Coi:The colour of wire populating the connector pin .

3. Cct:ldentifies the model or feature which uses the wire . ALL means applicable to all vehicles in the range.

1.8

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INTRODUCTION WIRE COLOUR CODES The following list contains the wire colour codes used on the vehicle harnesses and is intended to give an indication of the function or feature for which a particular colour of wire is normally used. These guidelines do not always apply to the wiring between components and the main harness.

Code

Colour

Function

B

Black

Earth wire from a component to an earth tag.

G

Green

K

Pink Light Green Brown

Ignition fused supply from f.assen~er compartment fuse box: clock, instrumen , indica ors, electric mirrors Fused supply: central door locking Ignition auxiliary fused supply from passenger compartment fuse box: reverse lamps, bral<e lamps Battery supply- to ignition switch from fusible link 3 and 5 Fused supply: central locking Fused permanent suftplft- to interior lamps, radio cassette, clock, anti- he alarm, electric aerial Fused supply: sidelamps Fused supply: electric windows

LG N

0 p

R 5

Orange Purple

w

Red Slate (grey) Blue White

y

Yellow

u

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Fused supply: headlamps, cooling fans Ignition switched supply to passenger compartment fuse box Ignition switched supply to passenger compartment fuse box

1.9

INTRODUCTION Fault diagnosis When diagnosing an electrical fault follow the steps below: 1. Read the circuit description and study the circuit diagram appropriate to the reported fault to ensure a good understanding of circuit operation.

2. Study the power distribution, fuse details and earth distribution diagrams and identify other circuits which share fuses and/or earth points. Check whether these circuits operate correctly.

3. Using the photographs contained in the Connector section , locate a point on the circuit (approximately half way between supply and earth) which is easily accessible.

4. Check that the pin out details of the connector are correct and that the correct signals exist at the correct terminals.

5. Using the marker pen supplied (or other suitable non-permanent marker pen), mark the parts of the circuit you have verified .

6. Continue to the next point on the circuit which is easiest to access and repeat the above.

7. Continue this approach until a fault is found, rectify the fault and then verify that the circuit operates correctly.

1.10

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FUSE DETAILS INTRODUCTION The following tables give details of power supply through the engine and passenger compartment fuse boxes.

NOTE: Some fuse numbers may be followed by a letter, either an 'E' or a 'P'. 'E' denotes a fuse located in the engine compartment fuse box, and 'P' a fuse located in the passenger compartment fuse box.

Engine Compartment Fuse Box

-

0

t:?:J [C6:] [C:5::Jl

le4:J [C:3j]

D:J [C:1::Jl

0

0

0

0

0

0

~00~0~ 0

0

0

0

0

0

~[ C574 C632

Qc

[7/

_J

= 86M4448

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2.1

FUSE DETAILS Engine Compartment Fuse Box- Fusible Links Link

Rating

1

100 Amp

2

60Amp

3 4 5

60Amp 30Amp 60Amp

6

30Amp

Wire Function Colour N Fuse 1 (E), Fuse 2 (E), Fuse 3 (E), Link 2 & Generator.

N Fuse 13 (P), Fuse 14 (P), Fuse 15 (P), & Fuse 16 (P).

N Not used .

N Not used .

N l~nition switch, Starter relay, Fuse 2 (P), & Fuse..; ( ).

N Lighting switch .

Engine Compartment Fuse Box- Fuses Fuse

Rating

1 2 3 4 5 6

30Amp 20Amp 30Amp 20Amp 30Amp 15 Amp 20Amp

7

2.2

Wire Colour N N N N N N N

Function Trailer pick-up.

Indicator switch.

Heater rear window relay.

Diagnostic socket.

Hazard switch.

Relay module (Fuel Pump).

Relay module (Fuel injectors).

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FUSE DETAILS Passenger Compartment Fuse Box

10 9

8 7

6

5

4

3

2 1

DDDDDDDDDD ~DD~D~DD~D

20 19 18 17 16 15 16 15 14 15

nnn

86M4658

Fuse

Rating

1

15 Amp

WG

2

10 Amp

p

3 4

15 Amp 15 Amp 7.5 Amp 10 Amp 7.5 Amp 7.5 Amp 7.5 Amp 7.5 Amp

p

5

6 7

8 9 10

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Wire Function Colour

PG WK UP UB UK

uo us

Heated rear window switch , Instrument pack illumination, Headlamp relay, & Engine immobilisation warning lamp.

Radio I Cassette player, Alarm ECU, & Front interior lamp.

BBUS, Alarm ECU, Alarm LED, & Alarm relay.

Heater blower motor.

Radio I cassette player.

Fog guard lamp ECU. RH Headlamp dipped beam .

LH Headlamp dipped beam.

RH Headlamp main beam.

LH Headlamp main beam.

2.3

FUSE DETAILS Fuse

Rating

11

5Amp

RB

12

5Amp

RO

13 14 15 16 17

20Amp 20Amp 20Amp 15 Amp 15 Amp

NS NW G

18

15 Amp

G

19 20

20Amp 20Amp

GO WG

2.4

Wire Function Colour Trailer pick-up, LH side lamp, & Radio I cassette player.

Head lamp levelling switch, Coolant temperature ~auge, Speedometer, Tachometer, Heater contra lumination, Fuel guage, Instrument pack, Cigar lighter, Trailer picl<-up, RH Headlamp levelling motor, LH Headlamp levelling motor, RH Side lamp, & Auto selector illumination.

Not used Not used Air Conditioning blower relay.

Condenser fan relay, & compressor clutch relay.

Rear w~er motor, Oil temperature warnin~ lamp, BBUS, larm ECU, Rear wash/wipe switc , Hazard warning switch, Compressor clutch relay, and Blower relay.

Speed transducer, Brake pedal switch, Starter inhibitor switch, Front wash/wipe switch, Windscreen wiper motor, & Windscreen wiper motor relay.

Cigar lighter.

RH heated ox~gen sensor (H02S), LH H02S, ~nition coils, ngine Control Module (ECM), & elay module.

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EARTH POINTS AND HEADER JOINTS Earth Points The following illustration indicates the general position of each Earth Point on the vehicle .

D

C558

'路----

~ I[

~

C550 C560

1

C822 86M4659

Connector No Title C558 C560

Earth eyelet Earth eyelet

C822

Earth eyelet

Location Adjacent rear screen wiper motor.

Centre of engine compartment bulkhead .

Side of gearbox.

Earth Headers Connector No Title C550

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Earth header

Location Centre of engine compartment bulkhead .

3.1

DESCRIPTION AND OPERATION ENGINE IMMOBILISATION DESCRIPTION The engine immobilisation system fitted to the Defender 50LE works in conjunction with the alarm system . The Alarm ECU sends a coded signal to the Engine Control Module (ECM) . If the signal does not match the one expected by the ECM, the ECM will immobilise the engine.

Passive immobilisation is also fitted, with a passive coil fitted around the ignition barrel. This will activate 30 seconds after the ignition is turned off and the drivers door is opened. Alternatively, passive immobilisation will occur 5 minutes after the vehicle is unlocked, or the ignition is turned off. When attempting to restart the vehicle, passive immobilisation can be switched off using either the RF handset or EKA code .

OPERATION Feed from the positive battery terminal is supplied to fusible link 5 in the engine compartment fuse box (C1217-1) on a brown wire. Fusible link 5 (C570-2) then supplies a feed to the ignition switch (C28-1) on a brown wire, and fuse 3 of the passenger compartment fuse box (C580-3), also on a brown wire. The ignition switch a fuse 3 are connected in parallel.

Fuse 3 of the passenger compartment fuse box (C580-6) supplies a constant battery input to the Alarm ECU (C61-25) on a purple wire. The Alarm ECU (C57-11) is earthed on a black wire.

When the ignition switch is turned to position 'II', a feed is supplied to both fuse 1 (C580-1) and fuse 17 (C581-13) of the passenger compartment fuse box.

These two fuses are connected in parallel via white wires .

Fuse 17 (C581-14) supplies an ignition feed to the Alarm ECU (C61-10) on a green wire .

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4.1

DESCRIPTION AND OPERATION Fuse 1 (C580-2) is connected to the engine lmmobilisation warning lamp (C1192-1) by a white/green wire. The lamp is controlled by the Alarm ECU. The warning lamp (C1193-1) is connected to the ECU (C61-11) by a red/slate wire .

To illuminate the lamp, the ECU provides an earth. To extinguish the lamp, the ECU provides a feed equal to that provided by fuse 1, creating a 0 volts potential difference. In this way, the ECU can control the flashing sequence of the lamp.

When an ignition feed is received by the Alarm ECU (C61-1 0), it sends a coded signal (C61-15) to the ECM (C636-26) on a black wire. If the signal does not match the one expected by the ECM, the ECM will immobilise the engine. The Alarm ECU (C57) is also connected to the starter inhibitor/reverse light switch (C69-4) by a black/orange wire .

The Alarm ECU can be interrogated via the diagnostic socket using TestBook.

The socket (C40-8) is connected to the ECU (C61-17) by an orange/light green wire .

In addition to the features directly controlled by the Alarm ECU , a passive coil is fitted around the ignition barrel. This is a user friendly way of re-mobilising the engine. The passive coil (C672-1) receives a power supply from the Alarm ECU (C57-7) on an orange/green wire.

The passive coil is only energised when the ignition switch is in position 'II' and the engine is in an immobilised state. The coil creates a magnetic field that excites a coil in the RF handset. This causes the handset to transmit a code to the Alarm ECU to re-mobilise the engine.

4.2

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DESCRIPTION AND OPERATION ANTI-THEFT ALARM DESCRIPTION Although a key is used in the normal way to lock and unlock the vehicle, this will not fully arm the alarm system. The system is fully armed with an RF handset, which transmits a rolling code. This code is received by the alarm ECU. If a door is opened without the alarm ECU receiving the correct signal from the handset, the alarm will sound .

The Alarm ECU also immobilises the engine, failing to provide a feed to the starter relay, immobilising the engine. See Engine lmmobilisation.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Fusible link 5 (C570-2) provides a feed to the following; • The ignition switch (C28-1) on a brown wire.

• Fuse 2 (C580-3) of the passenger compartment fuse box on a brown wire .

• Fuse 3 (C580-3) of the passenger compartment fuse box on a brown wire .

Fuse 2 and 3 are connected in parallel.

Fuse 3 (C580-6) supplies a constant battery feed to the Alarm ECU (C61-25) on a purple wire. The Alarm ECU is supplied a permanent earth (C57-11) by a black wire. The alarm ECU (C57-8) also receives a constant battery feed from fuse 2 (C580-4) on a purple wire. This feed is then used to power the hazard warning lamps (C57-1 & C57-6) on green/white and green/red wires .

When alarm is armed , the Alarm ECU receives a number of inputs. The RH door switch (C265-1) is connected to the Alarm ECU (C61-16) by a purple/blue wire . When the door is closed, the switch is open. In this condition , the Alarm ECU (C57-5) supplies the BBUS (C666-3) with battery voltage. When the door is opened, the door switch closes, providing a short to earth. The Alarm ECU responds by supplying the BBUS with a reduced voltage . Sensing this drop in voltage, the BBUS sounds.

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4.3

DESCRIPTION AND OPERATION The same principle is true of the LH door switch, the tail door switch, and the bonnet switch . The LH door switch (C106-1) is connected to the Alarm ECU (C61-5) by a slate/white wire. The tail door switch (C615-1) is connected to the Alarm ECU (C61-16) in parallel with the RH door switch on a purple/blue wire.

The bonnet switch (C?-2) is connected to the Alarm ECU (C61-9) on a orange/blue wire, and is provided an earth (C?-1) on a black wire . All 3 switches interact with the BBUS in exactly the same way as the RH door switch.

In addition to being supplied with a constant battery feed (C666-2) from fuse 2 (C580-6) of the passenger compartment fuse box, the BBUS also has its own internal power supply, and is earthed (C666-4) on a black wire.

The Alarm ECU (C61-20) also provides a feed for the ultrasonic sensor (C359-1) on a black/brown wire . The sensor is earthed (C359-2) on a black wire . When the module detects movement within the vehicle, it supplies the Alarm ECU (C61-3) with a short series of pulses on a white/black wire. Once the Alarm ECU detects these pulses, the BBUS is sounded.

To disarm the alarm system, the RF handset is used. The signal transmitted by the handset is received by the aerial. The aerial is connected to the Alarm ECU (C61-26) by an orange/slate wire.

4.4

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DESCRIPTION AND OPERATION The anti-theft alarm LED is used as a visual deterrent, and is connected to the Alarm ECU (C57-4) by a pink wire. To illuminate the LED, the Alarm ECU provides a path to earth (C57-11) on a black wire. To extinguish the LED, the Alarm ECU provides it (C240-1) with a voltage equal to that provided by fuse 3 of the passenger compartment fuse box. As the potential difference across the LED is now 0 volts, the LED is extinguished . In this way the Alarm ECU can control the flashing sequence of the LED .

The Alarm ECU also controls the interior lamps. The ECU (C61-1) provides a feed to the both the front (C355-1) and rear (C356-1) interior lamps on purple/white wires . An earth is provided for both lamps on black wires.

The alarm system can be interrogated through the diagnostic socket (C40-8), which is connected to the Alarm ECU (C61-17) by an orange/light green wire.

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4.5

DESCRIPTION AND OPERATION STARTING AND CHARGING DESCRIPTION The charging system consists of a generator containing a rectifier pack and regulator to maintain a constant direct (de) voltage in the system. The generator is belt driven from the crankshaft and is cooled by a fan mounted behind the pulley. The generator has a fixed coil wound stator in which a field coil rotor rotates. Slip rings conduct current to and from the field coils via 2 carbon brushes. The regulator senses output voltage and controls this to approximately 14 volts.

CHARGING- OPERATION Feed from the positive battery terminal is connected to fusible link 5 (C1217-1) of the engine compartment fuse box by a brown wire. Current flows from fusible link 5 (C570-2) to the ignition switch, also on a brown wire. With the ignition switch in position 'II', current flows to fuse 1 (C580-1) of the passenger compartment fuse box on a white wire .

Fuse 1 (C580-2) supplies a feed to the ignition/no charge warning lamp (C233-2) on a white/green wire . The warning lamp (C233-5) is earthed via a diode and generator field windings (C185-1) on a brown/yellow wire . The flow of current through the warning lamp and field windings partially magnetises the rotor. A resistor is wired in parallel with the warning lamp to ensure continued exciter voltage in the event of a bulb failure.

When the engine starts, the magnetised rotor rotates within the stator windings, generating a 3 phase alternating current (ac) and voltage which rises rapidly with rotor speed. The field diodes convert the ac current to direct current (de) and the generated voltage is fed back to the field windings. As the feed back voltage increases, the magnetic influence of the rotor also increases, resulting in self excitation of the rotor. Generated current and voltage increases with rotor speed until the generator is fully excited .

When the generator outputs a voltage equal to that supplied by the battery, the warning lamp is extinguished as the potential difference across the lamp is 0 volts. The diode between the generator and warning lamp prevents reverse flow.

4.6

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DESCRIPTION AND OPERATION The regulator functions as an electronic control switch on the earth side of the field coils. The regulator rapidly switches the earth circuit off and on to control the generated voltage and current to safe limits.

If the battery is in a low state of charge or current draw from the electrical system is high and causes a voltage drop, the generator charges at its maximum rate until 14 volts is generated . As battery voltage rises, the generator current output voltage reduces .

STARTING- OPERATION With the ignition switch in position 'II ', current flows to fuse 20 (C581-13) of the passenger compartment fuse box on a white wire. Fuse 20 (C581-20) is connected to the fuel pump relay coil (C157-2) in the engine management relay module by a white/green wire. The fuel pump relay coil (C157-1) is earthed through the ECM (C634-24) on a blue/purple wire.

The ECM earths the fuel pump relay for a short period of time when the ignition switch is in position 'II', and continuously during cranking and while the engine is running.

With the fuel pump relay energised , current from fuse 6 (C574-2) of the engine compartment fuse box can flow across the relay (C154-7 & C154-4) to the inertia switch (C123-3) on a white/purple wire . Assuming the inertia switch is closed, current flows across the switch (C123-1) to the fuel pump (C113-4) on a white/purple wire. The fuel pump is earthed (C113-3) on a black wire.

When the ignition switch is turned to the 'crank' position , current flows across the switch (C94-1) to the starter relay coil (C151-85) on a white/red wire. The relay coil (C151-86) is connected in series to the inhibitor switch (C69-5) by a black/yellow wire . Assuming the gear selector lever is in the 'Park' or 'Neutral ' position , a route to earth is provided from the inhibitor switch (C69-4) to the Alarm ECU (C57-10) on a black/orange wire .

DEFENDER V8i

4.7

DESCRIPTION AND OPERATION If the engine has been re-mobilised, the Alarm ECU will provide an earth (C57-11) for the starter relay on a black wire.

Now the starter relay has been energised , a battery feed from fusible link 5 (C570-2) on a brown wire will flow across the relay (C151-87 & C151-30) to the starter motor (C179-1) on a brown/red wire. This feed will energise the starter motor solenoid, allowing a battery feed to flow across the solenoid switch and power the motor. An earth is provided by the starter motor casing .

4.8

DEFENDER V8i

DESCRIPTION AND OPERATION GENERIC ENGINE MANAGEMENT SYSTEM (GEMS) DESCRIPTION GEMS is the engine management system utilised by Defender V8i models, controlling both the electronic ignition and fuel injection systems. It is able to alter ignition and fuelling settings to ensure the engine is operating at its optimum performance for the prevailing conditions. The ECM receives signals from sensors located around the engine and uses the data to control the fuel quantity, fuel injection timing and ignition timing in order to achieve optimum combustion of the fuel mixture in each cylinder.

The main features of the system are as follows: • A single engine control module (ECM) controls the fuel injection system and ignition system. The ECM incorporates short circuit protection and can store intermittent faults on certain inputs. TestBook can be used to interrogate the ECM for the stored fault codes .

• Fuel is injected sequentially. That is, when the relevant piston is on the inlet stroke and the intake valve is open.

• The ECM is electronically coded and prevents the engine being started unless it receives the correct code from the Alarm ECU. • Detection and correction of engine knock on individual cylinders. The ignition timing of each cylinder can be varied independently to the other cylinders and ensures that knock on one cylinder is eliminated without a detrimental effect on the ignition timing of the other cylinders.

• A diagnostic connector, located below the passenger compartment fuse box, allows engine tuning or fault diagnosis to be carried out using TestBook.

• If certain inputs to the ECM fail, a back-up facility enables the engine to continue running, although at a reduced level of performance.

DEFENDER V8i

4.9

DESCRIPTION AND OPERATION IGNITION SYSTEM The ignition system utilises a direct ignition system (DIS) negating the need for a distributor. The system comprises 4 double ended coils operating the wasted spark principle. The circuit to each coil is controlled by the ECM. When a coil fires, a spark is produced in two cylinders , however, as the resistance is higher in the cylinder on the compression stroke, more spark energy is dissipated in this cylinder.

The ECM determines the optimum ignition timing based on signals from the following sensors: • Crankshaft position (CKP) sensor- engine speed and crankshaft position • Camshaft position (CMP) sensor- camshaft position • Intake air temperature (IAT) sensor- inlet air temperature • Knock sensors- engine vibration, detonation The engine management system uses no centrifugal or vacuum advance, timing is controlled entirely by the ECM.

Crankshaft position (CKP) sensor The CKP sensor signal is used as the basis for ignition timing. It informs the ECM that the engine is turning, the speed the engine is turning and position of the engine in its cycle.

The sensor uses the principle of magnetic induction to generate the signal. A reluctor ring , attached to the engine flywheel, has a series of teeth spaced at 1oointervals, with one tooth missing at 20° after TDC . The reluctor ring rotates with the flywheel, in close proximity to the CKP sensor. As each tooth of the reluctor ring passes the sensor, it disturbs the magnetic field of the sensor and a voltage is induced in the sensor coil. The ECM calculates engine speed by counting pulses per second from the CKP sensor. Engine position is calculated by counting pulses after the missing pulse.

4.10

DEFENDER V8i

DESCRIPTION AND OPERATION Camshaft position (CMP) sensor The CMP sensor is used in conjunction with the CKP sensor to inform the ECM of the position of the engine in the 4 stroke cycle . Using the CKP sensor alone, the ECM is unable to determine whether a cylinder is on its compression stroke or exhaust stroke.

The sensor uses the principle of magnetic induction to generate the signal. The cam wheel has four gaps, one smaller than the others, which pass in close proximity to the CMP sensor as the camshaft rotates. The lobes disturb the magnetic field of the sensor and induce a voltage in the sensor coil.

In the event of a sensor failure, the ECM will continue to operate normal ignition timing and sequential fuel injection using the CKP sensor signal. The sequential fuel injection may be 180째 out of phase . Engine knock detection and correction will be disabled.

Inlet air temperature (IAT} sensor The basis of the IAT sensor is a temperature dependent resistive metal strip.

The resistance of the metal strip varies considerably with temperature. When an inlet temperature of 55째C or higher is detected, the ECM retards the ignition timing . If the sensor fails, the ECM assumes an inlet temperature or 50째C. Knock sensor The knock sensor is a piezo-electronic accelerometer, which produces an electronic signal related to the vibration of the engine. A knock sensor is located in each bank of cylinders. The signal from each knock sensor is transmitted to the ECM. The ECM is able to filter out normal engine vibrations and detect vibrations induced by engine knock.

DEFENDER V8i

4.11

DESCRIPTION AND OPERATION Using the signal from the knock sensor in conjunction with the CKP and CMP signals enables the ECM to identify which cylinder is producing the knock and hence retard the ignition timing of that cylinder only. The ignition timing of the cylinder producing the knock is retarded until the knock disappears. The ECM then advances the ignition timing to find the optimum advance angle for that cylinder. The ECM is able to perform a similar function for each of the 8 cylinders simultaneously. It is therefore possible for all 8 cylinders to have different advance angles at any one time .

FUELLING SYSTEM Engine fuelling is by a fully sequential, electronic fuel injection system, controlled by the ECM. The ECM determines the timing and quantity of fuel to be injected based on information received from the following sensors.

• Crankshaft position (CKP) sensor- engine speed and crankshaft position • Camshaft position (CMP) sensor- camshaft position • Mass air flow (MAF) sensor- quantity of air entering the engine • Throttle position (TP) sensor- position of throttle and rate of change of throttle • Engine coolant temperature (ECT) sensor- engine coolant temperature • Fuel temperature sensor- temperature of fuel rail • Heated oxygen sensor (H02S) -oxygen content of exhaust

Crankshaft position (CKP) sensor The CKP sensor signal is used as the basis for fuel injection timing. It informs the GEMS that the engine is turning , the speed the engine is turning and position of the engine in the cycle.

The sensor uses the principle of magnetic induction to generate the signal. A reluctor ring , attached to the engine flywheel, has a series of teeth spaced at 1oointervals, with one tooth missing at 20° after TDC . The reluctor ring rotates with the engine, in close proximity to the CKP sensor. As each tooth of the reluctor ring passes the sensor, it disturbs the magnetic field of the sensor and a voltage is induced in the sensor coil. The ECM calculates engine speed by counting pulses per second from the CKP sensor. Engine position is calculated by counting pulses after the missing pulse.

4.12

DEFENDER V8i

DESCRIPTION AND OPERATION Camshaft position (CMP) sensor The CMP sensor is used in conjunction with the CKP sensor to inform the ECM of the position of the engine in the 4 stroke cycle . Using the CKP sensor alone, the ECM is unable to determine whether a cylinder is on its compression or exhaust stroke.

The sensor uses the principle of magnetic induction to generate the signal. The cam wheel has four lobes which pass in close proximity to the CMP sensor as the camshaft rotates . The lobes disturb the magnetic field of the sensor and induce a voltage in the sensor coil.

In the event of a sensor failure, the ECM will continue to operate sequential fuel injection using the CKP sensor signal. It is possible that the injection timing will be one engine revolution out of sequence.

Mass air flow (MAF) sensor The MAF sensor is used to measure the quantity of air being drawn into the engine and hence give an indication of the quantity of fuel to be injected to provide a stoichiometric mixture strength.

The MAF sensor is an anemometer located in the inlet air flow and consisting of two wires, one heated and one not. The non heated wire is at ambient temperature and has a resistance which is used as a reference . The heated wire is maintained at a constant temperature difference above the non heated wire . As air flows over the heated wire, current is applied to the wire to maintain the temperature difference, the faster the air flow, the greater the cooling effect and the greater the current required to maintain the temperature difference.

The current supplied to the hot wire is converted to a voltage signal and sent to the ECM. The ECM uses the voltage signal to calculate the quantity of air being drawn into the engine.

If the sensor fails, the ECM calculates a value dependent on throttle position, engine speed and air temperature.

DEFENDER V8i

4.13

DESCRIPTION AND OPERATION Throttle position (TP) sensor The TP sensor measures the angle of throttle opening and the rate of change of throttle position. The angle of throttle opening gives an indication of the quantity of air being drawn into the engine. The rate of change of throttle angle gives an indication of rate of acceleration demanded.

The sensor is a rotary variable resistor mounted to the throttle butterfly spindle giving an output of 0 to 5 volts.

Engine coolant temperature (ECT) sensor The coolant temperature sensor measures the temperature of the engine coolant. The signal from the coolant sensor is used by the ECM to adjust the fuelling mixture. The engine requires a richer mixture at lower temperatures.

The sensor relies on a temperature dependent resistive metal strip. The resistance of the metal strip varies considerably with temperature and is immersed in the engine coolant.

If the sensor fails, the ECM assumes an engine coolant figure of 80째C. The fault could be noticable during the engine warm up period .

Fuel temperature sensor The fuel temperature sensor measures the temperature of the fuel rail. The signal from the sensor gives the ECM a warning of fuel vapourisation and the possibility of bubbles forming in the injectors. If the ECM receives a high fuel temperature signal during starting, the fuel injector opening period is increased to clear any vapourisation bubbles from the injectors and correct the fuelling.

When the engine is running, fuel circulation from the fuel tank keeps the fuel rail cool and flushes away any bubbles.

4.14

DEFENDER V8i

DESCRIPTION AND OPERATION Heated oxygen sensor (H02S) 2 H02S's are fitted to the vehicle, 1 before each catalyst. A H02S comprises a titanium metal sensor surrounded by a gas permeable ceramic coating .

Oxygen permeating the ceramic coating reacts with the titanium wire, altering its resistance . The resistance of the sensor is directly related to the quantity of oxygen around the sensor. The H02S does not function correctly until it reaches a temperature of approximately 300째C and so a heating element is incorporated into the sensor to provide rapid warm up after a cold start.

The signals from the H02S's are used by the ECM to correct the fuelling to each bank of cylinders independently. The 2 sensors measure the oxygen content of the gasses exhausted from the engine, indicating a rich or weak mixture strength. The ECM alters the pulse width of the injectors to correct the mixture strength and achieve a stoichiometric air/fuel ratio.

Injectors The fuel injection system has 8 fuel injectors, 1 for each cylinder. Each injector comprises a solenoid with a needle valve held in position by a spring. The route to ground for the solenoid is controlled by the ECM . When energised , the solenoid lifts the needle valve from its seat and pressurised fuel from the fuel rail flows through the injector. The injector orifice is shaped to produce a fine spray of fuel which aids combustion.

DEFENDER V8i

4.15

DESCRIPTION AND OPERATION Fuel pressure regulator The fuel pressure regulator is a mechanical device mounted to the fuel rail. Its purpose is to control the fuel rail pressure with respect to the inlet manifold depression. The fuel rail pressure must be reduced at high manifold depressions to avoid excess fuel being drawn through the injector nozzles.

The fuel regulator contains a spring loaded diaphragm valve with pressurised fuel on one side of the diaphragm and manifold vacuum acting on the other.

When fuel rail pressure, assisted by manifold depression, overcomes the diaphragm spring load , fuel flows past the diaphragm valve to the fuel tank, reducing fuel rail pressure. With manifold depression low, during hard acceleration, the fuel rail pressure must be high to overcome the diaphragm spring load . With manifold depression low, during coast down, the vacuum acting on the diaphragm valve acts against the spring load and a lower fuel rail pressure lifts the valve from its seat.

Idle air control valve (IACV) Engine idle speed is maintained by the IACV, connected to the stepper motor and controlled by the ECM. With the throttle butterfly fully closed, a small quantity of air is able to by-pass the throttle butterfly via the base idle passage .

The ECM monitors engine speed and load via sensors around the engine.

Should extra air be required to maintain a steady idle speed, the ECM signals the stepper motor to operate a number of steps and open the IACV to allow air through the throttle by-pass. The stepper motor operates over a range of 180 steps with the IACV fully open at 0 steps and fully closed at 180 steps.

4.16

DEFENDER V8i

DESCRIPTION AND OPERATION Purge valve The vehicle is equipped with an evaporative emission control system designed to prevent vapour loss from the fuel tank. Fuel tank vapour is passed through a charcoal canister which traps fuel vapour. The vapours trapped by the charcoal canister is drawn in to the engine through the purge valve and burnt in the combustion chamber.

The ECM controls the opening of the purge valve to allow venting of the charcoal canister. The ECM pulses the purge valve open for short periods when the engine has reached normal operating temperature and is turning at a speed over 1700 rpm. This is done to ensure that the fuelling of the engine is not adversely affected during warm up or at idle. During purge valve operation, the ECM monitors H02S signals. If opening the purge valve causes the H02S signal to indicate a leaner mixture, the ECM assumes that the charcoal canister is empty. When the charcoal canister is monitored to be empty, the purge valve is opened to prevent a build up of fuel vapour in the canister. With the purge valve open, unmetered air is drawn into the engine through the charcoal canister. The ECM uses the signal from the H02S's to corrects the fuelling .

Inertia switch Power to the fuel pump is supplied via the inertia switch. In the event of extreme deceleration, as would be experienced in a collision , the inertia switch trips, isolating electrical supply from the fuel pump. The switch is reset by pressing the rubber button on top of the switch.

DEFENDER V8i

4.17

DESCRIPTION AND OPERATION DIAGNOSTIC SOCKET DESCRIPTION The diagnostic socket is located below the passenger compartment fuse box.

The connector is constructed to ISO standard and allows the attachment of TestBook or any other ISO standard scantool. The diagnostic socket allows diagnostic information stored in any of the vehicle's ECU's to be retrieved. It also allows engine tuning and fault diagnosis to be carried out via the engine control module (ECM).

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. A constant battery feed is provided to the diagnostic socket (C40-16) by fuse 4 (C573-1) of the engine compartment fuse box on a purple wire . An earth is provided for the socket (C40-4) on a black w1re .

To allow TestBook to interact with the Alarm ECU, the diagnostic socket (C40-8) is connected to the ECU (C61-17) by an orange/light green wire. To interact with the ECM, 2 pins are set aside (C40-7 & C40-15). The ECM is connected to the diagnostic socket by white/pink (C636-20) and white/light green wires (C636-23).

4.18

DEFENDER V8i

DESCRIPTION AND OPERATION AIR CONDITIONING DESCRIPTION The air conditioning (A/C) system fitted to the Defender 50LE operates independently of the standard heating and ventilation system. Controlled by 2 switches mounted in the centre of the fascia, the A/C system will only operate when the engine is running and the blower control is in at least position 1.

The blower control is a 3 position switch, and works in conjunction with the temperature control. Temperature control is by a variable resistor. The cooled and dehumidified air produced by the A/C system is directed through vents located in the lower fascia bezel.

The A/C system can be used in conjunction with the standard heating and ventilation system. By combining the two separate systems, virtually any required interior condition can be met.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current flows across fusible link 1 and fusible link 2, which are connected in series. From fusible link 2 (C570-1 ), current flows to fuse 15 and 16 (C581-5) of the passenger compartment fuse box on a brown/purple wire . Fuses 15 and 16 are connected in parallel.

Fuse 15 (C581-10) supplies a feed to the blower relay switch (C817-30) on a brown/slate then purple/slate wire. Fuse 16 (C581-12) supplies a feed to both the condenser fan relay switch (C1212-30) on a brown/white wire , and the compressor clutch relay switch (C1213-30), also on a brown/white wire .

When the ignition switch is turned to position 'II', current is allowed to flow from the ignition switch (C90-1) to fuse 17 (C581-13) of the engine compartment fuse box on a white wire .

DEFENDER V8i

4.19

DESCRIPTION AND OPERATION Fuse 17 (C581-14) supplies a feed to the blower relay coil (C817-86) on a green wire, and the compressor clutch relay coil (C1213-86), also on a green wire . The blower relay coil (C817-85) is earthed on a black wire. The earth path for the compressor clutch relay coil (C1213-85) is controlled by the ECM (C634-1), which is connected to the relay by a blue/black then black/slate wire .

The now energised blower relay (C817-87) allows current to flow to the blower motor switch (C275-5) on a brown wire. The blower motor switch is a 3 position switch. Slow speed is attained by turning the switch to position 1. A feed can now flow from the switch (C275-3) to the blower motor (C848-1) on a blue wire.

As the current has to flow through the 2 in-line resistors before reaching the motor itself, a slow motor speed is attained. The motor is earthed (C1215-1) on a black wire.

Turning the blower switch to position 2 allows a feed to flow from the switch (C275-1) to the blower motor (C844-1) on a green wire . As the current now only has to flow through 1 in-line resistor, a medium speed is attained.

For high speed operation, turning the blower switch to position 3 (C275-2) allows current to flow direct to the motor (C845-1) on a red wire without having to flow through the in-line resistors . As in the case of low speed and medium speed operation, the blower motor (C1215-1) is earthed on a black wire .

Once the blower motor switch has been turned to position 1, it also allows current to flow (C275-4) to the interlock relay coil (C153-4) on a blue/yellow wire . The relay coil is earthed (C153-2) on a black wire . The interlock relay is also energised when the blower switch is in position 2 and 3.

Although the blower will operate with the ignition on, the air conditioning system itself will not operate until the engine is running, and a number of conditions are met.

4.20

DEFENDER V8i

DESCRIPTION AND OPERATION Fuse 7 of the engine compartment fuse box (C574-1) supplies a feed to the main relay coil within the engine management relay module (C154-6) on a brown/light green wire. If the engine is running, the ECM (C635-17) provides an earth path for the main relay (C157-3) on a blue/red wire. This energises the main relay and allows a feed (C154-3) to flow to the condenser fan relay coil (C1212-85) on a brown/orange then slate/blue wire .

The earth path for the condenser fan relay (C1212-86) is again controlled by the ECM (C634-3), this time on a slate/black then green/white wire. This energises the condenser fan relay, and allows the feed from fuse 16 of the passenger compartment fuse box (C581-12) to flow across the relay (C1212-30 & C1212-87) and onto the condenser fan (C280-1) on a blue/purple wire. The condenser fan is earthed (C280-2) on a black wire .

The compressor will only operate if a number of conditions are met, and is controlled by the compressor clutch. The clutch will only allow the compressor to operate if: • The engine is running.

• The refrigerant pressure in the high pressure line is within the set limits.

• The temperature within the system is within the set limits.

• Excessive engine temperatures are not reached.

Assuming all these conditions are met, the compressor clutch relay will be energised by the ECM. Current will flow from the relay (C1213-87) to the compressor clutch (C182-1) on a brown/pink wire. The clutch is earthed (C182-2) on a black wire . This engages the compressor clutch and drives the compressor.

DEFENDER V8i

4.21

DESCRIPTION AND OPERATION HEATER BLOWER DESCRIPTION The heater is operated by three sliding controls attached to the instrument binnacle. Two of the controls regulate the temperature and air flow distribution.

The third control operates the two speed heater blower. The heater blower operates with the ignition switch in position 'I', and is completely independent of the air conditioning system.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes through fusible link 5 (C570-2), which is connected to the ignition switch (C28-1) by a brown wire .

With the ignition switch in position 'I', power flows across the switch (C99-1) to fuse 4 (C580-7) of the passenger compartment fuse box on a white/orange wire . Fuse 4 (C580-8) then supplies a feed to the blower motor (C431-3) on a purple/green wire . When the blower switch is in the 'Off' position, the blower motor has no route to earth and does not run .

Moving the blower switch to position '1', connects the blower motor (C431-2) to the blower switch (C58-2) on a green/yellow wire. Power flows through the blower motor and resistor to the switch , which is earthed (C58-3) on a black wire . The blower motor will now operate at low speed.

Moving the blower switch to position 'II', connects the blower motor (C431-1) directly to the blower switch (C58-1) on a green/slate wire. Again, the switch is earthed (C58-3) on a black wire. The blower motor now operates at high speed.

4.22

DEFENDER V8i

DESCRIPTION AND OPERATION HEATED REAR WINDOW (HRW) DESCRIPTION The heated rear window (HRW) is operated by a latching switch mounted on the dash panel. When the switch is set to the 'On' position, the instrument panel warning lamp will illuminate to indicate the HRW is operating. The HRW only operates when the ignition switch is turned to position 'II'.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes through fusible link 1 and fusible link 5, which are connected in parallel. Fusible link 5 (C570-2) is connected to the ignition switch (C28-1) by a brown wire.

Fusible link 1 is connected in series with fuse 3. Fuse 3 (C571-1) supplies a feed to the heated rear window relay switch (C44-87) on a brown/slate wire .

With the ignition switch in position 'II', current flows from the switch (C90-1) to fuse 1 of the passenger compartment fuse box (C580-1) on a white wire. Fuse 1 (C580-2) is connected to the heated rear window switch (C72-4) by a white/green wire. When the switch is depressed, current is allowed to flow across the switch (C72-2) and energise the heated rear window relay (C44-85 & C44-86) on a white/green wire. The relay is earthed on a black wire.

The energised relay (C44-30) now allows current to flow to both the heated rear window (C381-1) and the instrument pack warning lamp (C1051-1). The instrument pack warning lamp (C1 050-1) is earthed on a black wire.

DEFENDER V8i

4.23

DESCRIPTION AND OPERATION WIPERS AND WASHERS DESCRIPTION The front windscreen wipers are controlled from the column switch and operate when the ignition switch is in position 'II '. The wipers have 2 speed settings, along with a flick wipe and single wipe facility. An intermittent wipe function and programmed wash wipe facility is controlled by the front wiper delay unit.

Moving the wiper switch down from the off position initiates the intermittent wipe function . Moving the wiper switch up one position from the off position, operates the wipers at slow speed . Moving the wiper switch up two positions from the off position, operates the wipers at fast speed. Pushing the wiper switch up from the off position, not allowing it to latch, and then releasing it causes the wipers to perform a single wipe cycle at slow speed. Pushing and holding the wiper switch up from the off position, not allowing it to latch, causes the wipers to operate at slow speed until the wiper switch is released.

Pressing the end of the wiper switch, initiates the programmed wash wipe sequence . The windscreen washers operate while the switch is pressed and the wipers continue to operate for a number of cycles after the switch is released.

The rear screen wiper and wash facilities are controlled by a switch mounted on the dash panel. Pressing the switch causes the rear washer to operate until the switch is released. The rear wiper does not operate automatically with the rear wiper. Turning the switch clockwise causes the rear wiper to operate until the switch is turned back to the off position.

4.24

DEFENDER V8i

DESCRIPTION AND OPERATION OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes though fusible link 5 (C570-2) which is connected to the ignition switch (C28-1) by a brown wire .

With the ignition switch in position 'II' (C90-1 ), a feed is supplied to fuse 17 and 18 of the passenger compartment fuse box (C581-13) on a white wire. Fuse 17 (C581-14) supplies power to the rear wash/wipe circuit, while fuse 18 (C581-16) supplies power to the front wash/wipe circuit.

Front Wipers and Washers Fuse 18 of the passenger compartment fuse box (C581-16) supplies the front wiper relay (C39-8) a feed on a green wire when the ignition switch is in position 'II'.

Slow and Fast Speeds Fuse 18 also provides a feed to the wash/wipe switch (C278-6) on a green wire . Moving the switch to the slow speed position allows power to flow across the switch (C278-1) to the wiper motor (C30-3) on a blue/light green wire . This feed into the wiper motor also has to travel through an internal resistor. This extra resistance causes the motor to operate at slow speed. The wiper motor is earthed (C30-1) on a black wire.

Moving the wiper switch to the fast speed position allows power to flow through the switch (C278-5) to the wiper motor (C30-5) on a red/light green wire. This time the feed from the switch does not have to flow through the internal resistor, causing the motor to operate at fast speed . Again, the motor is earthed (C30-1) on a black wire.

Operating the flick wipe function outputs a feed from the wash/wipe switch (C278-5) and onto the wiper motor (C30-5) for as long as the switch is held against spring pressure. The wipers operate at fast speed .

DEFENDER V8i

4.25

DESCRIPTION AND OPERATION Park Circuit Positioning the wash/wipe switch to the 'off' position cuts power to the wiper motor on the blue/light green or red/light green wire . The park circuit operates to return the wipers to their park position. The park switch (C30-4) is integral to the wiper motor. It receives a feed from fuse 18 of the passenger compartment fuse box (C581-16) on a green wire. The park switch is closed with the wipers in any position other than their park position .

With the park switch closed, power flows across the switch (C30-2) to the front wiper relay (C39-5) on a brown/light green wire. The front wiper relay (C39-2) is connected to the wash/wipe switch (C278-4) by a yellow/light green wire.

Power flows through the wash/wipe switch (C278-1) to the wiper motor (C30-3) on a blue/light green wire. The wiper motor is earthed (C30-1) on a black wire.

The wipers operate until their park position is reached and the park switch opens, cutting the power supply to the wiper motor.

Intermittent Wipe Moving the wash/wipe switch to the intermittent wipe position allows power to flow across the switch (C278-3) to the front wiper relay (C39-1) on a white/green wire. When this signal is received by the relay, it switches the route to earth (C39-4) on and off approximately every 5 seconds on a black wire . An intermittent feed is then supplied from the relay (C39-2) to the wash/wipe switch (C278-4) on a yellow/light green wire. Power flows through the switch (C278-1) and supplies the wiper motor (C30-3) on a blue/light green wire. The wipers operate at slow speed.

Programmed Wash/Wipe Depressing the end of the wash/wipe switch operates the programmed wash/wipe function. The washer switch (C278-6) is supplied a feed by fuse 18 of the passenger compartment fuse box (C581-16) on a green wire . When the switch is closed, power flows across the switch (C278-2) to the front wiper relay (C39-6) and the windscreen washer pump (C8-2). Both are supplied a feed on light green/black wires. The washer pump is earthed (C8-1) on a black wire .

4.26

DEFENDER V8i

DESCRIPTION AND OPERATION When the front wiper relay (C39-6) receives a feed from the wash/wipe switch (C278-2), it outputs a feed (C39-2) back to the wash/wipe switch (C278-4) on a yellow/light green wire. Power flows across the wash/wipe switch (C278-1) and onto the wiper motor (C30-3) , which operates at slow speed. When the washer switch is released, the relay will operate the wipers for a further 3 cycles . Once this has been completed , feed to the wash/wipe switch is cut by the relay and the park circuit is initiated.

Rear Wiper The rear wiper switch (C1197-1) is supplied a feed by fuse 17 of the passenger compartment fuse box (C581-14) on a green wire. When the switch is in the 'on' position (C1194-1 ), power is fed to the rear screen wiper motor (C388-2) on a red/light green then brown/light green wire. The wiper motor is earthed (C388-1) on a black wire .

Rear Park Circuit Positioning the wiper switch to the 'off' position cuts power to the rear wiper motor on the red/light green then brown/light green wire . The park circuit operates to return the wiper to its park position. The park switch (C11 05-2) is integral to the wiper motor. It receives a feed from fuse 17 (C581-14) of the passenger compartment fuse box on a green wire . The park switch is closed with the wiper in any position except its park position.

With the park switch closed, power flows across the switch ( C 11 05-1) to the wiper switch (C1195-1) on a brown/light green wire . Power flows across the wiper switch (C1194-1) back to the wiper motor (C388-2) on a red/light green then brown/light green wire. The wiper motor is earthed (C388-1) on a black w1re .

Rear Wash The rear washer switch (C 1197-1) is supplied a feed by fuse 17 of the passenger compartment fuse box (C581-14) on a green wire . When the switch is depressed power is fed (C1196-1) to the rear screen washer pump (C21-2) on a black/light green wire. The washer pump is earthed (C21-1) on a black wire . The rear screen wash does not operate the rear wiper.

DEFENDER V8i

4.27

DESCRIPTION AND OPERATION EXTERIOR LAMPS - Brake and Reverse Lamps DESCRIPTION The brake lamps illuminate when the ignition switch is in position 'II' and the brake pedal is depressed. The reverse lamps illuminate when the ignition switch is in position 'II' and the gear selector lever is in the reverse position .

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes through fusible link 5 (C570-2) and is connected to the ignition switch (C28-1) by a brown wire.

When the ignition switch is in position 'II', current flows across the switch (C90-1) to fuse 18 of the passenger compartment fuse box (C581-13) on a white wire.

Fuse 18 (C581-16) supplies a feed to both the brake pedal switch (C29-1) and the reverse lamp switch (C69-2), which are connected in parallel. Both are supplied on green wires .

Brake Lamps When the brake pedal is depressed, the brake pedal switch closes and current flows across the switch. The brake pedal switch (C75-1) supplies a feed to: • The centre high mounted stop lamp (CHMSL) (C832-1).

• The trailer pick-up (C1146-1).

• The RH brake lamp (C 125-2).

• The LH brake lamp (C121-2).

All 4 are connected in parallel and are supplied a feed on green/purple wires, and earthed on black wires .

Reverse Lamps When reverse gear is selected, the reverse lamp switch is closed. Current flows across the switch (C69-3) to the RH reverse lamp (C455-1) on a green/brown wire . Current flows across the RH reverse lamp (C455-2) and onto the LH reverse lamp (C472-1 ), also on a green/brown wire. Both lamps are connected in series . The LH reverse lamp is earthed (C1190-1) is earthed on a black wire.

4.28

DEFENDER V8i

DESCRIPTION AND OPERATION EXTERIOR LAMPS- Head, Side and Number Plate Lamps DESCRIPTION The lights are operated from the lighting switch located on the steering column .

The lighting switch has two positions. Position 1 switches on the tail lamps, the number plate lamps, and the front side lamps. Position 2 additionally switches on the front headlamps. When the headlamps are on, the column switch can be used to switch between main beam and dipped beam .

The head lamps can be flashed with the lights on or off, by pulling the column switch towards the driver.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes through fusible link 1, fusible link 5, and fusible link 6, which are all connected in parallel.

Side Lamps Fusible link 6 (C572-3) is connected to the lighting switch (C41-1) by a brown wire . With the lighting switch in position 1, current flows across the switch (C41-2) to fuse 11 and 12 (C581-1) of the passenger compartment fuse box.

Fuse 11 (C581-2) supplies the LH side of the vehicle, while fuse 12 (C581-4) supplies the RH side of the vehicle.

Current flows from fuse 11 (C581-2) to the LH front side lamp (C538-2) on a red/black wire . The side lamp is earthed (C538-1) on a black wire. Connected in parallel with the side lamp is the trailer pick-up (C1189-1 ), which is also supplied a feed on a red/black wire. The trailer pick-up (C1189-2) is connected in series with the LH tail lamp (C121-3) by a red/black wire . The tail lamp is earthed (C121-1) on a black wire. Wired in parallel with the LH tail lamp is the rear number plate lamp (C138-1 ). Again, current is supplied on a red/black wire . The lamp is earthed (C1190-1) on a black wire.

DEFENDER V8i

4.29

DESCRIPTION AND OPERATION The RH side of the vehicle operates in much the same way. Fuse 12 (C581-4) supplies a feed to the RH front side lamp (C537 -2) on a red/orange wire . The side lamp is earthed (C537-1) is earthed on a black wire. Connected in parallel with the side lamp is the trailer pick-up (C1144-1 ), which is also supplied a feed on a red/orange wire . The trailer pick-up (C1144-2) is connected to the RH tail lamp (C125-3) , again on a red/orange wire. The lamp is earthed (C125-1) on a black wire.

Fuse 12 of the passenger compartment fuse box (581-4) also supplies a feed to the instrument pack warning lamp (C230-8) on a red/orange wire. The warning lamp is earthed (C230-4) on a black wire.

Head lamps With the lighting switch in position 2, power flows through the switch (C41-4) to the headlamp relay (C282-87) on a blue/yellow wire. The headlamp relay will not be energised unless the ignition switch is in position 'II'.

Dipped Beam With the ignition switch in position 'II' current flows across the switch (C90-1) to fuse 1 of the passenger compartment fuse box (C580-1) on a white wire. Fuse 1 (C580-2) supplies a feed to the headlamp relay coil (C282-85) on a white/green wire. The relay is earthed (C282-86) on a black wire. This feed energises the headlamp relay.

The lighting switch (C41-4) is now able to supply a feed to both the column switch (C36-1) and fuse 6 of the passenger compartment fuse box (C580-11) on blue wires. Fuse 6 (C580-12) supplies a feed to the fog ECU (C543-2) on a blue/purple wire.

With the column switch in the dipped beam position, current flows from the switch (C36-6) to fuses 7 and 8 (C580-13) of the passenger compartment fuse box on a blue/red wire. Fuse 7 (C580-14) supplies a feed to the RH headlamp dipped beam bulb (C11-2) on a blue/black wire . The lamp is earthed (C11-3) on a black wire. Fuse 8 (C580-16) supplies a feed to the LH headlamp dipped beam bulb (C9-2) on a blue/pink wire. The lamp is earthed (C9-3) on a black wire .

4.30

DEFENDER V8i

DESCRIPTION AND OPERATION Main Beam When the column switch is moved to the main beam position, current flows from the switch (C36-5) to fuses 9 and 10 (C580-17) of the passenger compartment fuse box, and the main beam warning lamp (C230-6) in the instrument pack. All are connected by blue/white wires .

Fuse 9 (C580-18) supplies a feed to the RH headlamp main beam bulb (C11-1) on a blue/orange wire. Fuse 10 (C580-20) supplies a feed to the LH head lamp main beam bulb (C9-1) on a blue/slate wire. Both lamps (C11-3 & C9-3 respectively) are earthed on black wires.

Headlamp Flash Fuse 2 of the engine compartment fuse box (C573-3) supplies a constant battery feed to the column switch (C36-7) on a purple wire . When the column switch is pulled back to the flash position, it allows this current to flow along the main beam circuit as described in the 'Main Beam' description.

DEFENDER V8i

4.31

DESCRIPTION AND OPERATION EXTERIOR LAMPS - Headlamp Levelling DESCRIPTION To prevent dazzling oncoming drivers, the headlamps can be adjusted to compensate for the effect of different loads on headlamp vertical alignment.

Headlamp levelling is controlled by a four position switch mounted in the centre of the fascia, which operates a levelling motor on each head lamp. Nominal vehicle loads for each switch position are as follows: • 0 - Driver or driver and front passenger only; no luggage.

• 1 -All seats occupied; no luggage.

• 2- All seats occupied; full luggage compartment.

• 3 - Driver only; full luggage compartment.

Headlamp levelling operates while the side lamps or headlamps are on .

OPERATION Feed from the positive battery terminal is connected to fusible link 6 of the engine compartment fuse box (C1217-1) on a brown wire . Fusible link 6 supplies a feed to the lighting switch (C41-1) on a brown wire .

With the lighting switch in either the side or main beam position , current is allowed to flow from the switch (C41-2) to fuse 12 of the passenger compartment fuse box (C581-1) on a red wire. Fuse 12 (C581-4) supplies a feed to the LH head lamp levelling motor (C71-1 ), the RH head lamp levelling motor (C70-1 ), and the head lamp levelling switch (C93-4) . All 3 are connected in parallel and are supplied a feed on red/orange wires . Fuse 12 also supplies a feed to the headlamp levelling switch illumination bulb (C93-5), again on a red/orange wire. All are earthed on black wires.

At each of the four switch positions, the contacts in the head lamp levelling switch connect to a different resistance value to provide one of four different output voltages. The output voltage (C93-2) is supplied to the LH (C71-3) and RH (C70-3) levelling motors on blue/yellow wires. The motors are earthed (C71-2 & C70-2 respectively) on black wires .

The difference between the voltage from the head lamp levelling switch and battery voltage is then used by electronics in the headlamp levelling motors to set the head lamps to a position corresponding to the switch position.

4.32

DEFENDER V8i

DESCRIPTION AND OPERATION EXTERIOR LAMPS- Rear Fog Lamps DESCRIPTION The rear fog lamps only operate when the headlamps are illuminated and the ignition switch is in position "II". The non- latching switch is positioned to the right of the steering column, adjacent the HRW switch. When the rear fog lamps are switched on, the instrument pack warning lamp also illuminates. The fog lamps are automatically switched off every time the ignition is turned off.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current flows through fusible link 5 and fusible link 6 of the engine compartment fuse box, which are connected in parallel.

Fusible link 6 of the engine compartment fuse box (C572-3) is connected to the lighting switch (C41-1) by a brown wire. With the lighting switch in either the side or main lamp position, current flows across the switch (C41-4) to the headlamp relay (C282-87) on a blue/yellow wire . As the relay is not energized, the relay switch is open, thus preventing current flow.

Fusible link 5 of the engine compartment fuse box (C570-2) is connected to the ignition switch (C28-1) by a brown wire. With the ignition switch in position "II" (C90-1 ), current flows to fuse 1 of the passenger compartment fuse box (C580-1) on a white wire . Fuse 1 (C580-2) supplies a feed to the headlamp relay coil (C282-85) on a white/green wire . The relay coil is earthed (C282-86) on a black wire.

With the relay coil energized , the relay switch closes, allowing current to flow from the head lamp relay (C282-30) to fuse 6 of the passenger compartment fuse box (C580-11) on a blue wire . Fuse 6 of the passenger compartment fuse box (C580-12) is connected to the rear fog guard lamp ECU (C543-2) by a blue/purple wire.

DEFENDER V8i

4.33

DESCRIPTION AND OPERATION The rear fog guard lamp ECU (C543-4) is connected to the rear fog guard lamp switch (C64-2) by a red/slate wire. When the switch is depressed momentarily, it provides an earth (C64-3) on a black wire. The fog guard lamp ECU is also earthed (C543-1) directly on a black wire . When the ECU senses the second earth via the switch, it provides a feed (C543-3) to the instrument pack warning lamp (C230-1 ), the RH rear fog guard lamp (C512-1 ), and the LH rear fog guard lamp (C515-1 ). All three are connected in parallel by red/yellow wires, and earthed on black wires .

4.34

DEFENDER V8i

DESCRIPTION AND OPERATION EXTERIOR LAMPS- Indicators I Hazard Warning Lamps DESCRIPTION The indicators are controlled from the steering column switch and operate when the ignition switch is in position 'II '.

The hazard lamp switch is located to the right of the steering column, adjacent the rear fog lamp switch . Hazard operation is not dependent on the position of the ignition switch. When the hazard switch is depressed, both left and right hand indicator lamps flash.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Power flows through fusible link 5 and fuse 5, which are connected in parallel. Fusible link 5 (C570-2) provides a feed to the ignition switch (C28-1) on a brown wire . Fuse 5 (C574-3) provides a permanent battery feed to the hazard warning switch (C96-7) on a brown/purple wire .

Indicators With the ignition switch in position 'II ', power flows across the ignition switch (C90-1) to fuse 17 of the passenger compartment fuse box (C581-13) on a white wire. Fuse 17 (C581-14) is connected to the hazard warning switch (C96-8) by a green wire. With the hazard warning switch in the off position, power flows through the switch (C96-5) and up to the flasher unit (C536-6) on a light green wire. The flasher unit is earthed (C536-4) on a black wire . With the flasher unit energised , a feed (C536-8) is sent to the column switch (C36-3) on a light green/brown wire .

DEFENDER V8i

4.35

DESCRIPTION AND OPERATION Left Turn Moving the column switch to the left turn position, allows power to flow across the switch (C36-4) to : • The LH trailer pick-up (C1149-1).

• The LH rear indicator lamp (C928-2).

• The LH front indicator lamp (C1-2) .

• The LH side repeater lamp (C13-1 ).

• The LH indicator instrument pack warning lamp (C230-5) .

All are supplied a feed on green/red wires, and earthed on black wires. With the flasher circuit complete, the flasher unit commences opening and closing the circuit, causing the LH indicator lamps to flash.

Right Turn Moving the column switch to the right turn position allows power to flow across the switch (C36-2) to : • The RH trailer pick-up (C1151-1 ).

• The RH rear indicator lamp (C837-2) .

• The RH front indicator lamp (C2-2) .

• The RH side repeater lamp (C12-1 ).

• The RH indicator instrument pack warning lamp (C233-7) .

All are supplied a feed on green/white wires and earthed on black wires . With the flasher circuit complete, the flasher unit commences opening and closing the circuit, causing the RH indicator lamps to flash.

4.36

DEFENDER V8i

DESCRIPTION AND OPERATION Hazards The hazard warning switch (C96-7) is supplied with a permanent battery feed from fuse 5 of the engine compartment fuse box (C574-3) on a brown/purple wire . Pressing the switch to the on position allows power to flow across the switch (C96-5) to the direction indicator relay (C536-6) on a light green wire .

The energised relay is now able to provide a feed (C536-8) for both the LH and RH indicator circuits on a light green/brown wire . The relay is connected to the following via the hazard warning switch: • The front LH indicator (C1-2) on a green/red wire.

• The LH side repeater (C13-1) on a green/red wire.

• The LH trailer pick-up (C1149-1) on a green/red wire.

• The rear LH indicator (C928-2) on a green/red wire .

• The front RH indicator (C2-2) on a green/white wire .

• The RH side repeater (C12-1) on a green/white wire.

• The RH trailer pick-up (C1151-1) on a green/white wire .

• The rear RH indicator (C837-2) on a green/white wire.

The hazard warning switch also provides a feed for the following warning lamps: • The hazard warning lamp (C1037-1) on a brown/red wire .

• The LH indicator warning lamp (C230-5) on a green/red wire.

• The RH indicator warning lamp (C233-7) on a green/white wire.

With the direction indicator relay energised, the circuit is repeatedly open and closed, causing all indicators and warning lamps to flash.

DEFENDER V8i

4.37

DESCRIPTION AND OPERATION INTERIOR LAMPS DESCRIPTION The Defender 50LE is provided with two interior lamps, one in the front and one in the rear of the vehicle . Both lamps can be switched on manually using their integral switches. If any door, including the tail door are opened, the lamps will illuminate.

The lamps are controlled by the Alarm ECU. The ECU contains a time out feature which switches off the interior lamps after eight minutes if any door is left open, thus preventing unnecessary battery drain.

OPERATION Feed from the positive battery terminal is connected to fusible link 1 and fusible link 5 of the engine compartment fuse box (C1217-1) by a brown wire. Fusible link 1 is connected in series with fuse 1 in the engine compartment fuse box, while fusible link 5 (C570-2) supplies a feed to fuse 2 (C580-3) of the passenger compartment fuse box on a brown wire .

Fuse 1 (C573-4) supplies a feed to the rear interior lamp (C356-3) on a purple wire . The rear interior lamp has an integral switch. With this switch in the normal (central) position, the lamp is earthed (C356-1) via the alarm ECU (C61-1) on a purple/white wire. The alarm ECU will only provide an earth path for the lamp if either of the front doors or the tail door are open.

The Alarm ECU (C61-5) is connected to the LH door switch (C106-1) by a slate/white wire. The RH door switch (C265-1) and the tail door switch (C615-1) are wired in parallel and are connected to the alarm ECU (C61-16) via purple/blue wires .

If the internal switch is moved to the forward 'ON' position, the feed from fuse 1 is allowed to flow across the interior lamp (C356-3 & C1209-1) straight to earth on a black wire. Moving the switch to the rear 'OFF' position, breaks the circuit, extinguishing the lamp.

4.38

DEFENDER V8i

DESCRIPTION AND OPERATION The front interior lamp works on the same principle .

Fuse 2 of the passenger compartment fuse box (C580-4) supplies a feed to the front interior lamp (C355-3) on a purple wire. The front interior lamp has an integral switch . With this switch in the normal (central) position, the lamp is earthed (C355-1) via the Alarm ECU (C61-1) on a purple/white wire. The Alarm ECU will only provide an earth path for the lamp if either of the front doors or the tail door are open .

The alarm ECU (C61-5) is connected to the LH door switch (C106-1) by a slate/white wire. The RH door switch (C265-1) and the tail door switch (C615-1) are wired in parallel and are connected to the alarm ECU (C61-16) via purple/blue wires .

If the internal switch is moved to the forward 'ON' position, the feed from fuse 2 is allowed to flow across the interior lamp (C355-3 & C1210-1) straight to earth on a black wire. Moving the switch to the rear 'OFF' position, breaks the circuit, extinguishing the lamp.

DEFENDER V8i

4.39

DESCRIPTION AND OPERATION INTERIOR ILLUMINATION DESCRIPTION When the side lamps are switched on, the interior controls and gauges are illuminated so they can be easily located during night driving . Interior illumination is not controlled by the ignition switch.

OPERATION Feed from the positive battery terminal is connected to fusible link 6 of the engine compartment fuse box (C1217-1) by a brown wire . Current flows across fusible link 6 (C572-3) and on to the lighting switch (C41-1) on a brown wire .

With the lighting switch in either the side or main beam position (C41-2), current will flow to fuse 12 of the passenger compartment fuse box (C581-1) on a red wire. Fuse 12 (C581-4) supplies a feed to the following switches and gauges: • The cigar lighter (C74-1) on a red/orange wire.

• The engine coolant temperature gauge (C1205-1) on a red/white wire.

• The speedometer (C1 060-1) on a red/white wire.

• The tachometer (C1204-1) on a red/white wire.

• The heater controls (C1199-1 & C1200-1) on red/white wires .

• The fuel gauge (C1206-1) on a red/white wire.

• The automatic gearbox selector (C245-2) on a red/orange wire.

• The instrument pack (C230-8) on a red/orange wire.

All the above are connected in parallel and are earthed on black wires.

4.40

DEFENDER V8i

DESCRIPTION AND OPERATION INSTRUMENTS DESCRIPTION The vehicle relays information to the driver via the instrument pack. The instrument pack contains lamps and analogue gauges. The colour of the lamp denotes the severity of the information. Warning lamps are red , caution lamps are orange, green and blue lamps indicate a system is operating.

The analogue gauges relay information to the driver such as engine speed, and engine temperature.

OPERATION Feed from the positive battery terminal is connected to fusible link 5 of the engine compartment fuse box (C1217-1) by a brown wire . Fusible link 5 (C570-2) supplies a feed to the ignition switch (C28-1) on a brown wire. With the ignition switch in position 'II' (C90-1), a feed is supplied to fuse 1 (C580-1) and fuse 17 (C581-13) of the passenger compartment fuse box on white wires.

Fuse 17 (C581-14) is connected to the instrument pack by a green then white/green wires, and supplies a feed to the following gauges: • The speedometer (C1 060-2), which is also fed a signal from the speed transducer (C 1060-4) on a black/red wire. The speedometer is earthed (C1060-5) on a black wire.

• The fuel gauge (C1 054-2), which is also fed a signal from the fuel tank sender unit (C1 054-3) on a green/black wire . The fuel gauge is earthed (C1054-1) on a black wire.

• The tachometer (C1202-1 ), which is also fed a signal from the alternator (C1201-1) on a white/slate wire . The tachometer is earthed (C1203-1) on a black wire .

• The coolant temperature gauge (C1 052-2), which is also fed a signal from the engine coolant temperature (ECT) sensor (C1 052-3) on a green/blue wire . The coolant temperature gauge is earthed (C1 052-1) on a black wire .

All four gauges are connected in parallel.

DEFENDER V8i

4.41

DESCRIPTION AND OPERATION Fuse 1 of the passenger compartment fuse box (C580-2) is also connected to the instrument pack (C233-2) on a white/green wire , and supplies a feed to the following warning lamps.

• The hazard warning lamp, which is provided an earth path (C233-8) via the hazard warning/indicator circuit on a black/red wire . See EXTERIOR LAMPS - Indicators I Hazard Warning Lamps.

• The ignition/no charge warning lamp, which is provided an earth path (C 185-1) via the alternator on a brown/yellow wire. See CHARGING AND STARTING. • The main beam warning lamp, which is provided an earth path (C230-6) via the head lamp circuit on a blue/white wire . See EXTERIOR LAMPS- Head, Side and Number Plate Lamps.

• The handbrake warning lamp (C233-4) which is connected to the handbrake switch (C288-1) by a white/yellow wire. When the handbrake is pulled on, the switch closes and creates a path to earth.

• The RH and LH indicator warning lamps (C233-7 & C230-5 respectively), which are provided earth paths via the hazard warning/indicator circuit on green/white (RH) and green/red (LH) wires. See EXTERIOR LAMPSIndicators I Hazard Warning Lamps.

• The side lamp warning lamp, which is provided an earth path (C230-8) via the head lamp circuit on a red/orange wire. See EXTERIOR LAMPS- Head, Side and Number Plate Lamps.

• The trailer pick-up warning lamp, which is provided an earth path (C230-3) via the hazard warning/indicator circuit on a light green/purple wire. See EXTERIOR LAMPS - Indicators I Hazard Warning Lamps.

• The rear fog lamp warning lamp, which is provided an earth path (C230-1) via the fog lamp ECU (C543-3) on a red/yellow wire . See EXTERIOR LAMPS - Rear Fog Lamps.

• The differential lock warning lamp (C233-1 0), which is connected to the differential lock (C306-1) by black/blue wire.

• The oil pressure warning lamp (C233-3) which is connected to the oil pressure switch (C187-1) by a white/brown wire . The switch will close, providing a route to earth for the warning lamp, if it doesn't register any oil pressure.

4.42

DEFENDER V8i

DESCRIPTION AND OPERATION CIGAR LIGHTER DESCRIPTION The cigar lighter is located towards the centre of the dash panel. Pressing the centre of the cigar lighter latches the heater element into the holder. With the ignition in position 'II' , power flows through the heating element of the cigar lighter, causing it to heat up. When the heating element reaches a sufficient temperature, the holder automatically releases the cigar lighter which can then be removed for use.

The location of the cigar lighter holder is illuminated when the side lamps are switched on.

OPERATION Feed from the positive battery terminal is connected to the engine compartment fuse box (C1217-1) by a brown wire. Current passes through fusible link 5 and fusible link 6 of the engine compartment fuse box, which are connected in parallel.

Fusible link 6 of the engine compartment fuse box (C572-3) supplies a constant battery feed to the lighting switch (C41-1) on a brown wire. When the lighting switch is in the side or main beam position , current flows through the switch (C41-2) to fuse 12 of the passenger compartment fuse box (C581-1) on a red wire . Fuse 12 (C581-4) is connected the cigar lighter illumination bulb (C74-1) by a red/orange wire . The bulb is earthed (C89-1) on a black wire.

Fusible link 5 of engine compartment fuse box (C570-2) is connected to the ignition switch (C28-1) by a brown wire. When the ignition switch is in position 'II', current flows from the ignition switch (C90-1) to fuse 19 of the passenger compartment fuse box (C581-13) on a white wire. Fuse 19 (C581-18) is connected to the cigar lighter (C89-2) by a green/orange wire . The cigar lighter is earthed (C89-1) on a black wire .

DEFENDER V8i

4.43

DESCRIPTION AND OPERATION IN-CAR ENTERTAINMENT DESCRIPTION The radio/cassette player operates when the ignition switch is in position 'I' or 'II '. Signal output from the radio I cassette player is relayed to four loud speakers; two mounted in the front doors, two in the rear of the vehicle. The radio/cassette display is illuminated when the unit is switched on .

OPERATION Feed from the positive battery terminal is connected to fusible link 5 and fusible link 6 of the engine compartment fuse box (C1217-1) by a brown wire. Fusible link 5 (C570-2) supplies a feed to the ignition switch (C28-1 ), and fuse 2 of the passenger compartment fuse box (C580-3) on brown wires. Fuse 2 (C580-4) supplies a constant battery feed to the radio/cassette player (C98-4) on a purple wire . This feed powers the units memory, allowing the radio to store up to 30 pre-set radio stations.

When the ignition switch is turned to position 'I', current flows from the switch (C99-1) to fuse 5 of the passenger compartment fuse box (C580-7) on a white/orange wire . Fuse 5 (C580-1 0) supplies an ignition feed to the radio/cassette player (C98-7) on a white/pink wire.

Fusible link 6 of the passenger compartment fuse box (C572-3) supplies a feed to the lighting switch (C41-1) on a brown wire . When the lighting switch is moved to position 1 or 2, it provides a feed (C41-2) to fuse 11 of the passenger compartment fuse box (C581-1) on a red wire. Fuse 11 (C581-2) provides a feed for the radio/cassette players illuminated display circuit (C98-6) on a red/black wire .

4.44

DEFENDER V8i

DESCRIPTION AND OPERATION The radio/cassette player is connected to 4 speakers as follows; • The RH rear speaker on black/white (C92-1) and black/brown (C92-2) wires.

• The LH rear speaker on black/green (C92-7) and black/blue (C92-8) wires .

• The RH front door speaker on black/pink (C92-3) and black/red (C92-4) wires.

• The LH front door speaker on black/yellow (C92-5) and black/orange (C92-6) wires .

The radio/cassette player is earthed (C98-8) on a black wire.

DEFENDER V8i

4.45

C0001

CONNECTOR

CID Lamp- Direction indicator I hazard warning - Front- LH Female BLACK Behind LH front indicator lamp

YPC10070

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

GR

ALL

C0002

CONNECTOR

@_) Lamp- Direction indicator I hazard warning- Front- RH Female BLACK Behind RH front indicator lamp

YPC10070

Cav

Col

CCT

1

B

ALL

2

GW

ALL

DEFENDER V8i

C0003

CONNECTOR

@_) Horn (s) Female LIGHT BLUE Front LH side of engine compartment

P5554

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

PB

ALL

2

B

ALL

C0004

CONNECTOR

@_) Horn (s) Female LIGHT BLUE Front RH side of engine compartment

NO CONNECTOR FACE

Cav

Col

CCT

1

PB

ALL

2

B

ALL

DEFENDER V8i

C0007

CONNECTOR

@_) Switch - Bonnet Female BLACK RH side of bulkhead

YPC10070

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

ou

ALL

cooos

CONNECTOR

@_) Pump- WasherWindscreen Female BLACK Behind LH headlamp

ACU3172

Cav

Col

CCT

1

B

ALL

2

LGB

ALL

DEFENDER V8i

C0009

CONNECTOR

@_) Headlamp- LH Female BLACK Behind LH headlamp

AFU3113

DEFENDER V8i

Cav

Col

CCT

1

us

ALL

2

UK

ALL

3

B

ALL

C0011

CONNECTOR

@_) Headlamp- RH Female BLACK Behind RH headlamp

P5481

AFU3113

Cav

Col

CCT

1

uo

ALL

2

UB B

ALL

3

ALL

DEFENDER V8i

C0012

CONNECTOR

@_) Lamp- Side repeater- Front - RH Female BLACK Behind RH side repeater lamp

AFU3698

DEFENDER V8i

Cav

Col

CCT

1

GW

ALL

2

B

ALL

C0013

CONNECTOR

@_) Lamp- Side repeater- Front - LH Female BLACK Behind LH side repeater lamp

AFU3698

Cav

Col

CCT

1

GR

ALL

2

B

ALL

DEFENDER V8i

C0021

CONNECTOR

@_) Pump- Washer- Rear screen Female NATURAL Behind LH headlamp

AAU1939

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

BLG

ALL

C0026

CONNECTOR

@_) Switch - Brake fluid level Female BLACK Rear RH side of engine compartment

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C0028

CONNECTOR

@_) Switch- Ignition Female BLACK

C0099

Behind instrument pack

G0094

-----7-(~ (-+-/--;-'-4]~ ct..,_-路.\--.+,)-T)-C0090 ~

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

N

ALL

G0028

C0029

CONNECTOR

@_) Switch - Brake pedal Female BLACK RH side of bulkhead

AAU1 010

Cav

Col

CCT

1

G

ALL

DEFENDER V8i

C0030

CONNECTOR

@_) Motor - Wiper- Windscreen Female LIGHT GREY Behind LH side of fascia

13H4576

Cav

Col

1

B

2

NLG ULG G RLG

3

4 5

DEFENDER V8i

CCT ALL ALL ALL ALL ALL

C0031

CONNECTOR

@_) Switch - Brake fluid level Female BLACK Rear RH side of engine compartment

AAU1 010

Cav

Col

CCT

1

BW

ALL

DEFENDER V8i

C0036

CONNECTOR

@_) Switch - Direction indicator Female NATURAL Behind steering column cowl LH side

AFU3574

DEFENDER V8i

Cav

Col

CCT

1

u

ALL

2

GW

ALL

3

LGN

ALL

4

GR

ALL

5

uw

ALL

6

UR

ALL

7

p

ALL

8

PB

ALL

C0039

CONNECTOR

@_) Relay- Front wiper Female BLACK Behind passenger compartment fuse box

YPP10001

Cav

Col

CCT

1

WG

ALL

2

YLG

ALL

4

B

ALL

5

NLG

ALL

6

LGB

ALL

8

G

ALL

DEFENDER V8i

C0040

CONNECTOR

@_) Diagnostic socket Female BLACK Behind front of centre console

9

16

DDDDDDDD

~

YPC107920

DEFENDER V8i

Cav

Col

CCT

4

B

ALL

5

B

ALL

7

WLG

ALL

8

OLG

ALL

15

WK

ALL

16

p

ALL

C0041

CONNECTOR

@_) Switch- Lighting Female NATURAL Behind steering column cowl LH side

AFU3855

Cav

Col

CCT

1

N

ALL

2

R

ALL

4

UY

ALL

DEFENDER V8i

C0044

CONNECTOR

@_) Relay - Heated rear screen Female YELLOW Behind front of centre console

YPP100090

DEFENDER V8i

Cav

Col

CCT

30 85 86 87

WB

ALL

WG

ALL

B

ALL

NS

ALL

C0047

CONNECTOR

@_) Main harness to fascia harness Female LIGHT GREY Behind instrument pack

YPC10534

Cav

Col

CCT

1

G

ALL

2

B

ALL

3

YK

ALL

4

ALL

5

RO SR

6

ws

ALL

7

GB GU WB BR

ALL

8 9

10

ALL

ALL ALL ALL

DEFENDER V8i

C00 53

CONNECTOR

@_) Control - Alternator Eyelet BRASS Front of engine- centre

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

N

ALL

C0057

CONNECTOR

@_) ECU- Alarm Female GREEN Behind instrument pack

p l~g~

1 ~~~

5 12

,[

6 ggg~ggngg

L

J

9

~

F

YPC10531

Cav

Col

CCT

1

GW

ALL

4

K

ALL

5

ow

ALL

6

ALL

7

GR OG

8

p

ALL

10

BO

ALL

11

B

ALL

12

OP

ALL

ALL

DEFENDER V8i

coosa

CONNECTOR

@_) Switch- Blower motor Female BLACK Behind instrument pack

Q::IJI:::z::JIIJ] YPC10067

DEFENDER V8i

Cav

Col

CCT

1

ALL

2

GS GY

3

B

ALL

ALL

C0061

CONNECTOR

@_) ECU- Alarm Female GREY Behind instrument pack

13

~~~~~~~~26

YPC110050

Cav

Col

CCT

1

PW

ALL

3

WB

ALL

5

sw

ALL

9

ou

ALL

10 11 15 16 17 20 25 26

G

ALL

RS

ALL

B

ALL

PU

ALL

OLG

ALL

BN

ALL

p

ALL

OS

ALL

DEFENDER V8i

C0064

CONNECTOR

@_) Switch- Fog guard lampRear Female BLACK Behind RH side of fascia

CD

00 00 YPC1 07950

DEFENDER V8i

Cav

Col

CCT

2

RS

ALL

3

B

ALL

C0069

CONNECTOR

@_) Switch- Automatic transmission starter inhibitor I reverse Iight Female BLACK Above gearbox

NO CONNECTOR FACE

Cav

Col

CCT

2

G

ALL

3

GN

ALL

4

BO

ALL

5

BY

ALL

DEFENDER V8i

C0070

CONNECTOR

@_) Motor- Head lamp levelling RH Female BLACK Behind RH headlamp

P5481

YPC1 0068

DEFENDER V8i

Cav

Col

CCT

1

RO

ALL

2

B

ALL

3

UY

ALL

C0071

CONNECTOR

@_) Motor- Head lamp levelling LH Female BLACK Behind LH headlamp

YPC1 0068

Cav

Col

CCT

1

RO

ALL

2

B

ALL

3

UY

ALL

DEFENDER V8i

C0072

CONNECTOR

@_) Switch - Heated rear screen Female NATURAL Behind RH side of fascia

0 00 00 13H9236

DEFENDER V8i

Cav

Col

CCT

2

WG

ALL

4

WG

ALL

C0074

CONNECTOR

@_) Cigar lighter illumination Female NATURAL Behind centre of fascia

AFU4521

Cav

Col

CCT

1

RO

ALL

DEFENDER V8i

C0075

CONNECTOR

@_) Switch - Brake pedal Female BLACK RH side of bulkhead

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

GP

ALL

C0089

CONNECTOR

@_) Cigar lighter- Front Female RED Behind centre of fascia

NO CONNECTOR FACE

Cav

Col

CCT

1

B

ALL

2

GO

ALL

DEFENDER V8i

C0090

CONNECTOR

CID Switch- Ignition Female NATURAL

C0099

Behind instrument pack

~ =

-(..;..--+ ( ---::-'-4]=

G0094

~

ADU8339

DEFENDER V8i

).-------C0090

[1-"7--路路. \ .-'-;---.:,, )

Cav

Col

CCT

1

W

ALL

G0028

C0091

CONNECTOR

@_) Switch - Handbrake Female BLACK Base of hand brake lever

13H5155

Cav

Col

CCT

1

WY

ALL

DEFENDER V8i

C0092

CONNECTOR

@_) Speakers Female BROWN Behind radio

YPC10191

Cav

Col

CCT

1

BW BN BK BR BY BO BG BU

ALL

2 3

4 5

6 7

8

DEFENDER V8i

ALL ALL ALL ALL ALL ALL ALL

C0093

CONNECTOR

@_) Switch - Headlamp levelling Female NATURAL Behind centre of fascia

YPC10004

Cav

Col

CCT

2

UY

ALL

3

B

ALL

4

RO

ALL

5

RO

ALL

DEFENDER V8i

C0094

CONNECTOR

@_) Switch- Ignition Female RED

C0099

Behind instrument pack

G0094

-----7-(~ (-+-/--;-'-4]~ ct..,_-路.\--.+,)-T)-C0090 ~

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

WR

ALL

G0028

C0096

CONNECTOR

@_) Switch - Hazard warning Female BLACK Behind RH side of fascia

CD®

®0 I

I

®®

G)® 13H9237

Cav

Col

1

BR LGN GR GW LG NP G

2 3

4 5

7 8

CCT ALL ALL ALL ALL ALL ALL ALL

DEFENDER V8i

C0098

CONNECTOR

@_) Radio I cassette player Female GREY Behind radio

YPC10190

DEFENDER V8i

Cav

Col

CCT

4

p

ALL

6

RB

ALL

7

WK

ALL

8

B

ALL

C0099

CONNECTOR

@_) Switch- Ignition Female GREEN

C0099

Behind instrument pack

G0094

-----7-(~ (-+-/--;-'-4]~ ct..,_-路.\--.+,)-T)-C0090 ~

G0028

AAU1 010

Cav

Col

CCT

1

wo

ALL

DEFENDER V8i

C0106

CONNECTOR

@_) Switch- Door- LH Female BRASS, TIN-PLATED LH 'A' post

P5539

AFU3262

DEFENDER V8i

Cav

Col

CCT

1

sw

ALL

C0113

CONNECTOR

@_) Fuel tank Female BLACK Above fuel tank

YPC10066

Cav

Col

CCT

1

GB

ALL

2

B

ALL

3

B

ALL

4

WP

ALL

DEFENDER V8i

C0116

CONNECTOR

@_) Diode Female BLACK Behind fascia trim panel

2 YPC106660

DEFENDER V8i

Cav

Col

CCT

1

BW

ALL

2

WY

ALL

C0121

CONNECTOR

@_) Lamp- Tail- LH Female BLACK LH rear of vehicle

YPC1 0068

Cav

Col

CCT

1

B

ALL

2

GP

ALL

3

RB

ALL

DEFENDER V8i

C0123

CONNECTOR

@_) Switch- Inertia fuel cut-off Female BLACK Top of bulkhead - centre

YPC1 0068

DEFENDER V8i

Cav

Col

CCT

1

WP

ALL

3

WP

ALL

C0125

CONNECTOR

@_) Lamp- Tail- RH Female BLACK RH rear of vehicle

YPC1 0068

Cav

Col

CCT

1

B

ALL

2

GP

ALL

3

RO

ALL

DEFENDER V8i

C0134

CONNECTOR

@_) Sensor- Inlet air temperature (IAT) Female BLACK Rear of engine compartment - centre

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

RB

ALL

2

SLG

ALL

C0138

CONNECTOR

@_) Lamp- Number plate Male BLACK LH rear of vehicle

YPQ1 0010

Cav

Col

CCT

1

RB

ALL

DEFENDER V8i

C0149

CONNECTOR

@_) Sensor - Mass air flow (MAF) Female BLACK Rear of engine compartment - centre

YPC1 07900

DEFENDER V8i

Cav

Col

CCT

1

NO

ALL

2

UG

ALL

3

RB

ALL

C0151

CONNECTOR

@_) Relay - Starter Female YELLOW Behind front of centre console

YPP100090

Cav

Col

CCT

30 85 86 87

NR

ALL

WR

ALL

BY

ALL

N

ALL

DEFENDER V8i

C0152

CONNECTOR

@_) Purge control valve Female BLACK RH side of engine compartment

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

SY

ALL

2

NO

ALL

C0153

CONNECTOR

@_) Relay - Blower Female BLACK Behind centre of fascia

YPP100090

Cav

Col

CCT

1

UR

ALL

2

B

ALL

3

B

ALL

4

UY

ALL

DEFENDER V8i

C0154

CONNECTOR

@_) Relay module Female BLACK RH side of engine compartment

AFU3822

DEFENDER V8i

Cav

Col

3

NO

4

WP

6

NLG

7

PW

8

NO

CCT ALL ALL ALL ALL ALL

C0157

CONNECTOR

@_) Relay module Female BLACK RH side of engine compartment

YPC10064

Cav

Col

CCT

1

UP

ALL

2

WG

ALL

3

UR

ALL

DEFENDER V8i

C0160

CONNECTOR

@_) Engine harness to main harness Female BLACK RH side of bulkhead

[2]

ITJ

D AFU2.S21

Cav

Col

CCT

1

PW

2

WP

3

NLG NR

ALL ALL ALL ALL

4

DEFENDER V8i

ITJ OJ

C0162

CONNECTOR

@_) Engine harness to main harness Male BLACK RH side of bulkhead

YPC1 0056

Cav

Col

CCT

1

GU

ALL

2

ws

ALL

3

WN

ALL

4

GN

ALL

5

YK

ALL

6

ALL

11

OB YB BO BS BY RS

12

NY

ALL

13

G

ALL

7

8 9

10

ALL ALL ALL ALL ALL

DEFENDER V8i

C0168

CONNECTOR

@_) Sensor- Crankshaft position (CKP) Female NATURAL LH side of engine

,P4801

YPC 10070

DEFENDER V8i

Cav

Col

CCT

1

G

ALL

2

N

ALL

C0175

CONNECTOR

@_) Sensor- Throttle position (TP) Female BLACK Top of engine- LH side

YPC1 07900

Cav

Col

CCT

1

R

ALL

2

YLG

ALL

3

RB

ALL

DEFENDER V8i

C0176

CONNECTOR

@_) Sensor - Camshaft position (CMP) Female BLACK Bottom of engine- RH side

YPC1 0068

DEFENDER V8i

Cav

Col

CCT

1

RB

ALL

2

su

ALL

3

NO

ALL

C0177

CONNECTOR

@_) Idle air control valve (IACV) Female BLACK Top of engine- LH side

NO CONNECTOR FACE

Cav

Col

CCT

A

OR

ALL

B

RG

ALL

c

GW

ALL

D

us

ALL

DEFENDER V8i

C0178

CONNECTOR

@_) Starter motor Eyelet TIN-PLATE RH side of engine

YPG10018

DEFENDER V8i

Cav

Col

CCT

1

N

ALL

C0179

CONNECTOR

@_) Solenoid - Starter motor Female BLACK RH side of engine

AAU1 010

Cav

Col

CCT

1

NR

ALL

DEFENDER V8i

C0182

CONNECTOR

@_) Clutch - Compressor- Air conditioning (A/C) Female NATURAL Front of engine - centre

AFU3692

DEFENDER V8i

Cav

Col

CCT

1

NK

ALL

2

B

ALL

C0183

CONNECTOR

@_) Power - Alternator Female BLACK Front of engine- centre

AAU1 010

Cav

Col

CCT

1

ws

ALL

DEFENDER V8i

C0184

CONNECTOR

@_) Sensor- Temperature- Fuel rail Female GREY Top of engine- LH side

YPC107820

Cav

Col

CCT

1

RB sw

ALL

2

DEFENDER V8i

ALL

C0185

CONNECTOR

@_) Warning lamp- Ignition I no charge Eyelet BRASS Front of engine - centre

YPG10044

Cav

Col

CCT

1

NY

ALL

DEFENDER V8i

C0187

CONNECTOR

CID Switch - Oil pressure Female BLACK Bottom of engine- RH side

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

WN

ALL

C0195

CONNECTOR

@_) Speed transducer Female BLACK RH side of gearbox

YPC1 0068

Cav

Col

CCT

1

G

ALL

3

BR

ALL

DEFENDER V8i

C0196

CONNECTOR

@_) Sensor- Engine coolant temperature (ECT) Female BROWN Front RH side of engine

YPC107780

DEFENDER V8i

Cav

Col

CCT

1

RB

ALL

2

G

ALL

C0203

CONNECTOR

@_) Engine harness to main harness Male GREY RH side of bulkhead

YPC10469

Cav

Col

CCT

1

6

WLG WK B WG BR BU

7

NO

11

GW SR GB PB

ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL

2 3 4

5

12 13 14

DEFENDER V8i

C0219

CONNECTOR

@_) Switch - Oil temperature Female BLACK Above gearbox

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

SR

ALL

2

B

ALL

C0223

CONNECTOR

@_)

C1204 C1205

C1206

C1200

Main harness to fascia harness Male LIGHT GREY Behind instrument pack

P5495

YPC1 0544

Cav

Col

CCT

1

WG

ALL

2

B

ALL

3

YK

ALL

4

RW SR ws GB GU WB BR

ALL

5

6 7

8 9

10

ALL ALL ALL ALL ALL ALL

DEFENDER V8i

C0230

CONNECTOR

@_) Instrument Pack Female NATURAL Behind instrument pack

AAU8l72

DEFENDER V8i

Cav

Col

CCT

1

RY

ALL

3

LGP

ALL

4

B

ALL

5

GR

ALL

6

uw

ALL

8

RO

ALL

C0233

CONNECTOR

@_) Instrument Pack Female BLACK Behind instrument pack

NO CONNECTOR FACE

Cav

Col

CCT

1

ALL

3

BW WG WN

4

WY

ALL

5

NY GW BR WG BU

ALL

2

7 8 9 10

ALL ALL

ALL ALL ALL ALL

DEFENDER V8i

C0240

CONNECTOR

@_) LED- Anti-theft alarm Male BLACK Behind instrument pack

c:: 2

1 [J

~~

,,

.___ ]EE3 EE3J YPC10520

DEFENDER V8i

Cav

Col

CCT

1

K

ALL

2

p

ALL

C0245

CONNECTOR

@_) General illumination Female BLUE Behind centre console

NO CONNECTOR FACE

Cav

Col

CCT

1

B

ALL

2

RO

ALL

DEFENDER V8i

C02 59

CONNECTOR

@_) Main harness to interior lamp harness Male NATURAL Behind centre headlining

YPC10080

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

PW

ALL

3

p

ALL

C0265

CONNECTOR

@_) Switch- Door- RH Female BRASS, TIN-PLATED In front of driver's door

0

AFU3262

Cav

Col

CCT

1

PU

ALL

DEFENDER V8i

C0275

CONNECTOR

@_) Switch pack- Air conditioning (A/C) Female BLACK Behind centre of fascia

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

G

ALL

2

R

ALL

3

u

ALL

4

UY

ALL

5

N

ALL

C0277

CONNECTOR

@_) Main harness to air conditioning (A/C) harness Male BLACK Behind fascia trim panel

ITJ [2] [3] CSJ []]

rn

YPC10057

Cav

Col

CCT

1

G

ALL

2

SB

ALL

3

YW

ALL

4

UB

ALL

5

uw su

ALL

6

ALL

DEFENDER V8i

C0278

CONNECTOR

@_) Switch- Wash I wipeWindscreen Female NATURAL Behind steering column cowl - RH side

YPC10038

Cav

Col

CCT

1

ULG LGB WG YLG RLG G

ALL ALL ALL ALL ALL ALL

2 3

4 5

6

DEFENDER V8i

C0279

CONNECTOR

@_) Switch - Trinary Female BLACK Lower LH front of engine compartment

YPC10066

Cav

Col

CCT

1

WY

ALL

2

UR

ALL

3

B

ALL

4

uw

ALL

DEFENDER V8i

C0280

CONNECTOR

@_) Fan- Condenser Female BLACK Lower RH front of engine compartment

YPC10348

DEFENDER V8i

Cav

Col

CCT

1

UP

ALL

2

B

ALL

C0282

CONNECTOR

@_) Relay- Head lamp Female YELLOW Behind front of centre console

YPP100090

Cav

Col

CCT

30 85 86 87

u

ALL

WG

ALL

B

ALL

UY

ALL

DEFENDER V8i

C0285

CONNECTOR

@_) Header Female BLUE Behind instrument pack

YQC10005

Cav

CCT

Cav

Col

CCT

ALL

9

PB

ALL

ALL

10

PB

ALL

ALL

15

ALL

16

ALL

17

ALL

18

7

PB

ALL

19

8

PB

ALL

20

WG WG WG WG WG WG

ALL

6

Col G G G G G G

1

2 3

4 5

DEFENDER V8i

ALL ALL ALL ALL ALL

C0286

CONNECTOR

@_) Header Female BLUE Behind centre of fascia

YQC10005

Cav 1

2 3

4 5

6 7

8 9

Col RO RO RO RO RO RO GW GW GW

CCT

Cav

Col GW GR GR GR GR

CCT

ALL

10

ALL

11

ALL ALL

12 13

ALL

14

ALL

p

ALL

ALL

16 17

p

ALL

ALL

18

p

ALL

ALL

19

p

ALL

ALL ALL ALL ALL ALL

DEFENDER V8i

C0287

CONNECTOR

@_) Header Female GREY Behind centre of fascia

YQC10002

DEFENDER V8i

Cav

Col

CCT

Cav

Col

CCT

1

B

ALL

10

B

ALL

2

B

ALL

12

B

ALL

3

B

ALL

13

B

ALL

4

B

ALL

15

B

ALL

5

B

ALL

17

B

ALL

6

B

ALL

18

B

ALL

7

B

ALL

19

B

ALL

8

B

ALL

20

B

ALL

9

B

ALL

C0288

CONNECTOR

@_) Header Female YELLOW Behind instrument pack

--路

P5548

I

[~~~p

~~~ YQC10004

Cav

Col

CCT

Cav

1

WY

ALL

10

2

WY

ALL

11

3

WY

ALL

13

4

WY

ALL

14

5

PW PW PW UY

ALL

15

ALL

17

ALL

18

ALL

19

6 7 9

Col UY UY

CCT

uw uw uw

ALL

PU PU PU

ALL

ALL ALL ALL ALL ALL ALL

DEFENDER V8i

C0306

CONNECTOR

@_) Differential lock unit Female BLACK Above gearbox

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

BU

ALL

C0307

CONNECTOR

@_) Differential lock unit Female BLACK Above gearbox

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C0308

CONNECTOR

@_) Speaker - Rear - RH Female NATURAL Behind RH rear speaker

37H3684

DEFENDER V8i

Cav

Col

CCT

1

BW

ALL

C0309

CONNECTOR

@_) Speaker - Rear - RH Female BRASS, TIN-PLATED Behind RH rear speaker

NO CONNECTOR FACE

Cav

Col

CCT

1

BN

ALL

DEFENDER V8i

C0310

CONNECTOR

@_) Speaker - Rear - LH Female NATURAL Behind LH rear speaker

37H3684

DEFENDER V8i

Cav

Col

CCT

1

BG

ALL

C0311

CONNECTOR

@_) Speaker - Rear - LH Female BRASS, TIN-PLATED Behind LH rear speaker

NO CONNECTOR FACE

Cav

Col

CCT

1

BU

ALL

DEFENDER V8i

C0334

CONNECTOR

@_)

C1199

Gauge - Oil pressure Female BRASS, TIN-PLATED Behind instrument pack

P5497

0 YPL 102170

DEFENDER V8i

Cav

Col

CCT

1

SR

ALL

C0335

CONNECTOR

@_)

C1199

Gauge - Oil pressure Female BRASS, TIN-PLATED Behind instrument pack

P5497

0 YPL 102170

Cav

Col

CCT

1

WG

ALL

DEFENDER V8i

C0339

CONNECTOR

@_) Speaker- Door- Front- RH Female WHITE Behind front speaker

NO CONNECTOR FACE

Cav

Col

CCT

1

BK BR

ALL

2

DEFENDER V8i

ALL

C0340

CONNECTOR

@_) Speaker- Door- Front- LH Female WHITE Behind front speaker

NO CONNECTOR FACE

Cav

Col

CCT

1

BY

ALL

2

BO

ALL

DEFENDER V8i

C0350

CONNECTOR

@_) Socket - Accessory Female BLACK Behind front of centre console

13H5155

DEFENDER V8i

Cav

Col

CCT

1

P

ALL

C0355

CONNECTOR

@_) Lamp- Interior- Front Female NATURAL Headlining- front RH side

YPC10026

Cav

Col

CCT

1

PW

ALL

3

p

ALL

DEFENDER V8i

C0356

CONNECTOR

@_) Lamp- Interior- Front Female NATURAL Front of headlining in the centre

YPC10026

DEFENDER V8i

Cav

Col

CCT

1

PW

ALL

3

p

ALL

C0359

CONNECTOR

@_) Module- Ultrasonic Female BLACK Behind headlining top of RH 'B' post

/ "\.

"\.

1 /

/ "\.

2 "\. /

/ "\.

3 "\. /

~

/

4

"'

/

"'

~

YPC1 0199

Cav

Col

CCT

1

BN

ALL

2

B

ALL

3

WB

ALL

DEFENDER V8i

C0376

CONNECTOR

@_) Main harness to chassis harness

'

.. )

Female BLACK RH side of bulkhead \

' 1 ' P5507 ' "

'

YPC10064

DEFENDER V8i

Cav

Col

CCT

1

RO

ALL

2

RB

ALL

3

RY

ALL

4

GR

ALL

5

GW

ALL

6

GP

ALL

C0377

CONNECTOR

@_) Main harness to chassis harness

'

.. )

Female WHITE RH side of bulkhead \

' 1 ' P5507 ' "

'

OJ [2] ITJ

[]] CSJ rn YPC10197

Cav

Col

1

GN

2

WB

3

5

G NLG RLG

6

p

4

CCT ALL ALL ALL ALL ALL ALL

DEFENDER V8i

C0378

CONNECTOR

CID Main harness to chassis harness Female BLACK

'

.. )

RH side of bulkhead \

' 1 ' P5507 ' "

'

YPC10066

DEFENDER V8i

Cav

Col

CCT

1

GB

ALL

2

PU

ALL

3

WP

ALL

4

PW

ALL

C0379

CONNECTOR

@_) Main harness to chassis harness

'

.. )

Male NATURAL RH side of bulkhead \

' 1 ' P5507 ' "

'

DBP858i

Cav

Col

CCT

1

BW

ALL

2

BG

ALL

3

BN

ALL

4

BU

ALL

DEFENDER V8i

C0381

CONNECTOR

@_) Heater element - Rear screen Female TIN-PLATE LH side of taildoor

ADU3052

DEFENDER V8i

Cav

Col

CCT

1

WB

ALL

C0388

CONNECTOR

@_) Motor - Wiper- Rear screen Female BLACK Centre of taildoor, behind trim panel

ITJ[2] YPC1 06820

Cav

Col

CCT

1

B

ALL

2

RLG

ALL

DEFENDER V8i

C0390

CONNECTOR

@_) Chassis harness to main harness

'

.. )

Male BLACK RH side of bulkhead \

' 1 ' P5507 ' "

'

ITJ [2] [3] CSJ []]

rn

YPC10057

DEFENDER V8i

Cav

Col

CCT

1

RO

ALL

2

RB

ALL

3

RY

ALL

4

GR

ALL

5

GW

ALL

6

GP

ALL

C0391

CONNECTOR

@_) Chassis harness to main harness

'

.. )

Male WHITE RH side of bulkhead \

' 1 ' P5507 ' "

'

ITJ[2][3]

rn CSJ []] YPC10221

Cav

Col

CCT

1

GN

2

WB

3

5

G NLG RLG

6

p

ALL ALL ALL ALL ALL ALL

4

DEFENDER V8i

C0392

CONNECTOR

@_) Chassis harness to main harness

'

.. )

Male BLACK RH side of bulkhead \

' 1 ' P5507 ' "

'

ITJ

[2]

rn rn YPC10058

DEFENDER V8i

Cav

Col

CCT

1

GB

ALL

2

PU

ALL

3

WP

ALL

4

PW

ALL

C0393

CONNECTOR

@_) Chassis harness to main harness

'

.. )

Female NATURAL RH side of bulkhead \

' 1 ' P5507 ' "

'

DBP8582

Cav

Col

CCT

1

BW

ALL

2

BG

ALL

3

BN

ALL

4

BU

ALL

DEFENDER V8i

C0422

CONNECTOR

@_) Thermostat - Air conditioning (A/C) Female BLACK Behind centre of fascia

YPC1 0386

DEFENDER V8i

Cav

Col

CCT

1

UR

ALL

C0423

CONNECTOR

@_) Thermostat - Air conditioning (A/C) Female BLACK Behind centre of fascia

YPC1 0386

Cav

Col

CCT

1

UR

ALL

DEFENDER V8i

C0431

CONNECTOR

@_) Heater harness to main harness Female BLACK Rear LH side of engine compartment

YPC1 0068

Cav

Col

CCT

1

GS GY PG

ALL

2 3

DEFENDER V8i

ALL ALL

C0448

CONNECTOR

@_) Main harness to engine harness Female BLACK RH side of bulkhead

[5] [I]

OJ [2] ITJ

[9][8]0[1][6] [[3] [12] [ill rniJ YPC10062

Cav

Col

CCT

1

GU

ALL

2

ws

ALL

3

WN

ALL

4

GN

ALL

5

ALL

12

YK OB YB BO BS BY RS NY

13

G

ALL

6 7

8 9

10 11

ALL ALL ALL ALL ALL ALL ALL

DEFENDER V8i

C0449

CONNECTOR

@_) Main harness to engine harness Female GREY RH side of bulkhead

YPC10549

Cav

Col

CCT

1

6

WLG WK B WG BR BU

7

NO

11

GW SR GB PB

ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL

2 3 4

5

12 13 14

DEFENDER V8i

C0450

CONNECTOR

@_) Main harness to engine harness Male BLACK RH side of bulkhead

rnom

rn

rn

AFU3815

Cav

Col

CCT

1

PW

2

WP

3

NLG NR

ALL ALL ALL ALL

4

DEFENDER V8i

C0455

CONNECTOR

@_) Lamp - Reverse - RH Male BLACK Behind RH rear speaker

YPQ1 0010

DEFENDER V8i

Cav

Col

CCT

1

GN

ALL

2

GN

ALL

C0472

CONNECTOR

@_) Lamp- Reverse- LH Male BLACK LH rear of vehicle

YP010008

Cav

Col

CCT

1

GN

ALL

DEFENDER V8i

C0488

CONNECTOR

@_) Main harness to interior lamp harness Female NATURAL Behind centre headlining

L

===!

F

~~ ~~

L___j L___j

AFU3561

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

PW

ALL

3

p

ALL

J

C0512

CONNECTOR

@_) Lamp- Fog guard - RearRH Male BLACK Behind RH rear speaker

YPQ1 0010

Cav

Col

CCT

1

RY

ALL

2

RY

ALL

DEFENDER V8i

C0515

CONNECTOR

CID Lamp- Fog guard - RearLH Male BLACK LH rear of vehicle

YP010008

DEFENDER V8i

Cav

Col

CCT

1

RY

ALL

C0520

CONNECTOR

@_) Sounder - Alarm - Battery backed up Female BLACK Behind LH headlamp

YPC10070

Cav

Col

CCT

1

B

ALL

2

OB

ALL

DEFENDER V8i

C0522

CONNECTOR

@_) Fuel injector - No. 1 Female BLACK Top of engine- LH side

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

YU

ALL

2

NO

ALL

C0523

CONNECTOR

@_) Fuel injector - No. 2 Female BLACK Top of engine- RH side

YPC107790

Cav

Col

CCT

1

YW

ALL

2

NO

ALL

DEFENDER V8i

C0524

CONNECTOR

@_) Fuel injector - No. 3 Female BLACK Top of engine- LH side

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

YB

ALL

2

NO

ALL

C0525

CONNECTOR

@_) Fuel injector - No. 4 Female BLACK Top of engine- RH side

YPC107790

Cav

Col

CCT

1

YN

ALL

2

NO

ALL

DEFENDER V8i

C0526

CONNECTOR

@_) Fuel injector - No. 5 Female BLACK Top of engine- LH side

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

YG

ALL

2

NO

ALL

C0527

CONNECTOR

@_) Fuel injector - No. 6 Female BLACK Top of engine- RH side

YPC107790

Cav

Col

CCT

1

YS

ALL

2

NO

ALL

DEFENDER V8i

C0528

CONNECTOR

@_) Fuel injector - No. 7 Female BLACK Top of engine- LH side

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

YR

ALL

2

NO

ALL

C0529

CONNECTOR

@_) Fuel injector - No. 8 Female BLACK Top of engine- RH side

YPC107790

Cav

Col

CCT

1

YK

ALL

2

NO

ALL

DEFENDER V8i

C0536

CONNECTOR

@_) Relay- Direction indicator Female BLACK Behind front of centre console

YPP10001

DEFENDER V8i

Cav

Col

CCT

2

LGP

ALL

4

B

ALL

6

LG

ALL

8

LGN

ALL

C0537

CONNECTOR

@_) Lamp- Side- Front- RH Female WHITE Behind RH front side lamp

YPC10187

Cav

Col

CCT

1

B

ALL

2

RO

ALL

DEFENDER V8i

C0538

CONNECTOR

@_) Lamp- Side- Front- LH Female WHITE Behind LH front side lamp

YPC10187

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

RB

ALL

C0543

CONNECTOR

@_) ECU - Lamp- Fog guard Rear Female NATURAL Behind instrument pack

YPC10002

Cav

Col

CCT

1

B

ALL

2

UP

ALL

3

RY

ALL

4

RS

ALL

DEFENDER V8i

C0550

CONNECTOR

@_) Header - Earth Female NATURAL Top of bulkhead - centre

YPC10004

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

B

ALL

3

B

ALL

5

B

ALL

6

B

ALL

C0558

CONNECTOR

@_) Earth Eyelet TIN-PLATE Centre of taildoor, behind trim panel

YPG10046

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C0559

CONNECTOR

@_) Earth Eyelet TIN-PLATE Top of bulkhead - centre

YPGi0003

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C0570

CONNECTOR

@_) Fuse box- Engine compartment Female NATURAL Front LH side of engine compartment

YPCi 0135

Cav

Col

CCT

1

NP

ALL

2

N

ALL

DEFENDER V8i

C0571

CONNECTOR

@_) Fuse box- Engine compartment Female NATURAL Front LH side of engine compartment

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

NS

ALL

C0572

CONNECTOR

@_) Fuse box- Engine compartment Female NATURAL Front LH side of engine compartment

i-------FI-----

I

I

~\l)~ ~\2)~ ~\3)~ YPC1 0052

Cav

Col

CCT

3

N

ALL

DEFENDER V8i

C0573

CONNECTOR

@_) Fuse box- Engine compartment Female NATURAL Front LH side of engine compartment

YPCi0053

CCT

1

Col p

3

p

ALL

4

p

ALL

Cav

DEFENDER V8i

ALL

C0574

CONNECTOR

@_) Fuse box- Engine compartment Female NATURAL Front LH side of engine compartment

YPCi 0085

Cav

Col

CCT

1

NLG

ALL

2

PW

ALL

3

NP

ALL

DEFENDER V8i

C0580

CONNECTOR

@_) Fuse box - Passenger compartment Female BLACK Behind passenger compartment fuse box

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

Cav

Col

CCT

1

w

ALL

11

u

ALL

2

WG

ALL

12

UP

ALL

3

ALL

13

UR

ALL

4

N p

ALL

14

UB

ALL

6

p

ALL

16

UK

ALL

7

wo

ALL

17

ALL

8

PG

ALL

18

10

WK

ALL

20

uw uo us

ALL ALL

C0581

CONNECTOR

@_) Fuse box - Passenger compartment Female BLACK Behind passenger compartment fuse box

NO CONNECTOR FACE

Cav

Col

CCT

1 2 4

ALL

5

R RB RO NP

6

p

ALL

10 12 13 14 16 18 20

NS NW

ALL

w

ALL

G G GO WG

ALL

ALL ALL ALL

ALL

ALL ALL ALL

DEFENDER V8i

C0615

CONNECTOR

@_) Switch -Tail door open Female BLACK Behind RH rear speaker

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

PU

ALL

C0626

CONNECTOR

@_) Sensor - Knock - RH bank Female BLACK RH side of engine

YPC107790

Cav

Col

CCT

1

w

ALL

2

y

ALL

DEFENDER V8i

C0627

CONNECTOR

@_) Sensor - Knock - LH bank Female BLACK LH side of engine

,P4801

YPC107790

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

0

ALL

C0630

CONNECTOR

@_) Ignition coil Female BLACK Top of engine- LH side

YPC10064

Cav

Col

CCT

1

WB

ALL

2

WY

ALL

3

wu

ALL

4

WK

ALL

5

WG

ALL

DEFENDER V8i

C0634

CONNECTOR

@_) Engine control module (ECM) Female BLACK RH side of engine compartment

YPC10073

Cav 1 3 11 13 15 16 17

18 19

DEFENDER V8i

Col BS GW YB YU us RG YS YK SY

CCT

Cav

ALL

21

ALL

22 24 30 32 33 34

ALL ALL ALL ALL ALL ALL ALL

35 36

Col wo RS UP YN YR YG GW OR YW

CCT ALL ALL ALL ALL ALL ALL ALL ALL ALL

C0635

CONNECTOR

@_) Engine control module (ECM) Female BLACK RH side of engine compartment

NO CONNECTOR FACE

Cav

Col

CCT

Cav

Col

CCT

1

WK

ALL

11

G

ALL

4

R

ALL

12

N

ALL

5

B

ALL

13

wu

ALL

7

NO

ALL

14

WB

ALL

8

WG

ALL

15

WY

ALL

9

B

ALL

16

B

ALL

10

B

ALL

17

UR

ALL

DEFENDER V8i

C0636

CONNECTOR

@_) Engine control module (ECM) Female RED RH side of engine compartment

YPC10530

DEFENDER V8i

Cav

Col

2 7 10 11 12 13 14 15 16 18 20

su GB RB 0 y

SLG G YLG UG OB WK

CCT ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL

Cav 23 26 27 28 29 32 33 34 35 36

Col WLG B YK YB PB RB OG GR

sw RB

CCT ALL ALL ALL ALL ALL ALL ALL ALL ALL ALL

C0644

CONNECTOR

@_) Sensor- Heated oxygen (H02S)- Front- LH Female ORANGE Above gearbox

NO CONNECTOR FACE

Cav

Col

CCT

1

NU

ALL

2

GR

ALL

3

wo

ALL

4

WG

ALL

DEFENDER V8i

C0645

CONNECTOR

@_) Sensor- Heated oxygen (H02S)- Front- RH Female GREY Above gearbox

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

YB

ALL

2

OG

ALL

3

wo

ALL

4

WG

ALL

C0666

CONNECTOR

@_) Sounder - Alarm - Battery backed up Female BROWN Behind LH headlamp

YPC108930

Cav

Col

CCT

1

B

ALL

2

B

ALL

3

B

ALL

4

B

ALL

DEFENDER V8i

C0672

CONNECTOR

@_) Sensor - Key in Female BLACK Behind instrument pack

YPC10069

Cav

Col

CCT

1

OG OP

ALL

2

DEFENDER V8i

ALL

C0704

CONNECTOR

@_) Chassis harness to tail door harness Female NATURAL Behind RH rear speaker

ADU6789

Cav

Col

CCT

1

G NLG RLG

ALL ALL ALL

2 3

DEFENDER V8i

C0705

CONNECTOR

@_) Chassis harness to tail door harness BLACK Behind RH rear speaker

1

2 13H7646

DEFENDER V8i

Cav

Col

CCT

1

WB

ALL

2

B

ALL

C0711

CONNECTOR

@_) Lamp- Interior- Rear Female RED Behind RH rear speaker

YPC10414

Cav

CCT

1

Col p

2

PW

ALL

3

B

ALL

ALL

DEFENDER V8i

C0727

CONNECTOR

@_) Main harness to interior lamp harness Female NATURAL Behind centre headlining

L

===JF

rL_

-L___j---

~~~ AFU3760

DEFENDER V8i

Cav

Col

CCT

1

WB

ALL

2

BN

ALL

3

B

ALL

w

C0731

CONNECTOR

@_) Relay - Sounder- Alarm Female NATURAL Behind RH side of fascia

ACU5115

CCT

30

Col p

85

ow

ALL

86

p

ALL

87

OB

ALL

87A

PB

ALL

Cav

ALL

DEFENDER V8i

C0765

CONNECTOR

@_) Blower assembly Female BLACK Behind centre of fascia

AFU3822

DEFENDER V8i

Cav

Col

CCT

1

G

ALL

2

ALL

3

u R

4

N

ALL

5

UR

ALL

6

B

ALL

ALL

C0778

CONNECTOR

@_) Harness- Air conditioning (A/C) Female BLACK Behind centre of fascia

NO CONNECTOR FACE

Cav

Col

CCT

1

G

ALL

2

ALL

3

u R

4

N

ALL

5

UR

ALL

6

B

ALL

ALL

DEFENDER V8i

C0786

CONNECTOR

@_) Main harness to air conditioning (A/C) harness Female BLACK Behind centre of fascia

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

G

ALL

2

GW

ALL

3

YB

ALL

4

BS

ALL

5

PB

ALL

6

NO

ALL

C0801

CONNECTOR

@_) Diode Female BLACK Behind instrument pack

2 YPC106660

Cav

Col

CCT

1

SR

ALL

2

WY

ALL

DEFENDER V8i

C0817

CONNECTOR

@_) Relay - Blower Female YELLOW Behind front of centre console

YPP100090

DEFENDER V8i

Cav

Col

CCT

30 85 86 87

BS

ALL

B

ALL

G

ALL

N

ALL

C0822

CONNECTOR

@_) Earth Eyelet TIN-PLATE RH side of gearbox

YPG10016

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C0826

CONNECTOR

@_) Power - Alternator Eyelet TIN-PLATE Beneath engine compartment fuse box

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

N

ALL

C0832

CONNECTOR

@_) Lamp- brake- high mounted Male BLACK Behind RH rear speaker

YP010008

Cav

Col

CCT

1

GP

ALL

DEFENDER V8i

C0833

CONNECTOR

@_) Lamp- brake- high mounted Male BLACK Behind RH rear speaker

YP010008

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C0837

CONNECTOR

@_) Lamp- Direction indicator I hazard warning - Rear- RH Female RED RH rear of vehicle

(rn rnJ YPC10131

Cav

Col

CCT

1

B

ALL

2

GW

ALL

DEFENDER V8i

C0839

CONNECTOR

@_) Main harness to air conditioning (A/C) harness Female RED Behind centre of fascia

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

NW

ALL

2

NS

ALL

C0844

CONNECTOR

@_) Switch- Fan- Air conditioning (A/C) Female BLACK Under LH side of fascia

AAU1 010

Cav

Col

CCT

1

G

ALL

DEFENDER V8i

C0845

CONNECTOR

@_) Switch- Fan- Air conditioning (A/C) Female BLACK Under LH side of fascia

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

R

ALL

C0848

CONNECTOR

@_) Switch- Fan- Air conditioning (A/C) Female BLACK Under LH side of fascia

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C0928

CONNECTOR

CID Lamp- Direction indicator I hazard warning - Rear- LH Female BLACK LH rear of vehicle

YPC10070

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

GR

ALL

C0942

CONNECTOR

@_) Socket - Accessory Female BLACK Behind front of centre console

13H5155

Cav

Col

CCT

1

P

ALL

DEFENDER V8i

C1036

CONNECTOR

@_) Switch - Hazard warning Female NATURAL Behind RH side of fascia

37H3684

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C1037

CONNECTOR

@_) Switch - Hazard warning Female NATURAL Behind RH side of fascia

37H3684

Cav

Col

CCT

1

BR

ALL

DEFENDER V8i

C1050

CONNECTOR

@_)

C1199

Warning lamp- Heated rear screen Female BRASS, TIN-PLATED Behind instrument pack

P5497

0 YPL 102170

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C1051

CONNECTOR

@_)

C1199

Warning lamp- Heated rear screen Female BRASS, TIN-PLATED Behind instrument pack

P5497

0 YPL 102170

Cav

Col

CCT

1

WB

ALL

DEFENDER V8i

C1052

CONNECTOR

@_)

C1204 C1205

C1206

Gauge - Coolant temperature Female BLACK Behind instrument pack

P5495

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

2

WG

ALL

3

GU

ALL

C1200

C1054

CONNECTOR

@_)

C1204 C1205

C1206

C1200

Gauge- Fuel Female BLACK Behind instrument pack

P5495

NO CONNECTOR FACE

Cav

Col

CCT

1

B

ALL

2

WG

ALL

3

GB

ALL

DEFENDER V8i

C1060

CONNECTOR

@_)

C1204 C1205

C1206

Speedometer Male BLACK Behind instrument pack

P5495

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

RW

ALL

2

WG

ALL

3

B

ALL

4

BR

ALL

5

B

ALL

7

YK

ALL

C1200

C1102

CONNECTOR

@_) Tail door harness to chassis harness Male NATURAL Behind RH rear speaker

ADU6788

Cav

Col

1

G RLG NLG

2 3

CCT ALL ALL ALL

DEFENDER V8i

C1103

CONNECTOR

@_) Tail door harness to chassis harness Male BLACK Behind RH rear speaker

13H4716

DEFENDER V8i

Cav

Col

CCT

1

WB

ALL

C1104

CONNECTOR

@_) Tail door harness to chassis harness Female BRASS, TIN-PLATED Behind RH rear speaker

YPE10022

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C1105

CONNECTOR

@_) Switch - Park - Rear wiper Female BLACK Centre of taildoor, behind trim panel

YPC1 0068

DEFENDER V8i

Cav

Col

CCT

1

NLG

ALL

2

G

ALL

3

B

ALL

C1144

CONNECTOR

@_) Header - Bullet Male BLACK Behind RH rear speaker

YPQ1 0010

Cav

Col

CCT

1

RO

ALL

2

RO

ALL

DEFENDER V8i

C1145

CONNECTOR

@_) Earth - Bullet- RH Male BLACK Behind RH rear speaker

YPQ1 0010

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C1146

CONNECTOR

@_) Header - Bullet Male BLACK Behind RH rear speaker

YPQ1 0010

Cav

Col

CCT

1

GP

ALL

2

GP

ALL

DEFENDER V8i

C1149

CONNECTOR

@_) Lamp- Direction indicator I Hazard warning -TrailerLH Male BLACK Behind RH rear speaker

YPQ1 0010

DEFENDER V8i

Cav

Col

CCT

1

GR

ALL

2

GR

ALL

C1150

CONNECTOR

@_) Trailer pick-up Male BLACK RH rear of vehicle

YP010008

Cav

Col

CCT

1

P

ALL

DEFENDER V8i

C1151

CONNECTOR

@_) Lamp- Direction indicator I Hazard warning -TrailerRH Male BLACK Behind RH rear speaker

YPQ1 0010

DEFENDER V8i

Cav

Col

CCT

1

GW

ALL

2

GW

ALL

C1189

CONNECTOR

@_) Trailer pick-up Male BLACK Behind RH rear speaker

YPQ1 0010

Cav

Col

CCT

1

RB RB

ALL

2

ALL

DEFENDER V8i

C1190

CONNECTOR

@_) Earth - Bullet- LH Male BLACK LH rear of vehicle

YPQ1 0010

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C1192

CONNECTOR

@_)

C1204 C1205

C1206

C1200

Warning lamp- Engine immobilisation Female BRASS, TIN-PLATED Behind instrument pack

P5495

0 YPL 102170

Cav

Col

CCT

1

WG

ALL

DEFENDER V8i

C1193

CONNECTOR

@_)

C1204 C1205

C1206

Warning lamp- Engine immobilisation Female BRASS, TIN-PLATED Behind instrument pack

P5495

0 YPL 102170

DEFENDER V8i

Cav

Col

CCT

1

RS

ALL

C1200

C1194

CONNECTOR

@_) Switch - Wash I wipe - Rear screen Female RED Behind centre of fascia

AAU1 010

Cav

Col

CCT

1

RLG

ALL

DEFENDER V8i

C1195

CONNECTOR

@_) Switch - Wash I wipe - Rear screen Female NATURAL Behind centre of fascia

ADU8339

DEFENDER V8i

Cav

Col

CCT

1

NLG

ALL

C1196

CONNECTOR

@_) Switch - Wash I wipe - Rear screen Female BLACK Behind centre of fascia

AAU1 010

Cav

Col

CCT

1

BLG

ALL

DEFENDER V8i

C1197

CONNECTOR

@_) Switch - Wash I wipe - Rear screen Female GREEN Behind centre of fascia

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

G

ALL

C1199

CONNECTOR

@_)

C1199

Heater control illumination Male WHITE Behind instrument pack

P5497

NO CONNECTOR FACE

Cav

Col

CCT

1

RW

ALL

2

B

ALL

DEFENDER V8i

C1200

CONNECTOR

@_)

C1204 C1205

C1206

Heater control illumination Male WHITE Behind instrument pack

P5495

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

RW

ALL

2

B

ALL

C1200

C1201

CONNECTOR

@_) Tachometer Female RED Behind instrument pack

P5497

AAU1 010

Cav

Col

CCT

1

ws

ALL

DEFENDER V8i

C1202

CONNECTOR

@_)

C1199

Tachometer Female NATURAL Behind instrument pack

P5497

ADU8339

DEFENDER V8i

Cav

Col

CCT

1

WG

ALL

C1203

CONNECTOR

@_) Tachometer Female BLACK Behind instrument pack

P5497

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C1204

CONNECTOR

@_)

C1204 C1205

C1206

Tachometer Female BLACK Behind instrument pack

P5495

YPC1 07200

DEFENDER V8i

Cav

Col

CCT

1

RW

ALL

2

B

ALL

C1200

C1205

CONNECTOR

@_)

C1204 C1205

C1206

Gauge - Coolant temperature Female BLACK Behind instrument pack

P5495

YPC1 07200

Cav

Col

CCT

1

RW

ALL

2

B

ALL

DEFENDER V8i

C1206

CONNECTOR

@_)

C1204 C1205

C1206

Gauge- Fuel Female BLACK Behind instrument pack

P5495

YPC1 07200

DEFENDER V8i

Cav

Col

CCT

1

RW

ALL

2

B

ALL

C1200

C1207

CONNECTOR

@_) Socket - Auxilliary Female NATURAL Behind centre console

ADU8339

Cav

Col

CCT

1

GO

ALL

DEFENDER V8i

C1208

CONNECTOR

@_) Lamp- Interior- Rear Male RED Behind RH rear speaker

YPC10422

Cav

DEFENDER V8i

CCT

1

Col p

2

PW

ALL

3

B

ALL

ALL

C1209

CONNECTOR

@_) Earth Female BLACK Rear of headlining

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C1210

CONNECTOR

@_) Earth Female BLACK Front of headlining in the centre

AAU1 010

DEFENDER V8i

Cav

Col

CCT

1

B

ALL

C1211

CONNECTOR

@_) Main harness to interior lamp harness Male NATURAL Behind centre headlining

YPC10092

Cav

Col

CCT

1

WB

ALL

2

BN

ALL

3

B

ALL

DEFENDER V8i

C1212

CONNECTOR

@_) Relay - Condenser fan Female YELLOW Behind front of centre console

YPP100090

DEFENDER V8i

Cav

Col

CCT

30 85 86 87

NW

ALL

su

ALL

SB

ALL

UP

ALL

C1213

CONNECTOR

@_) Relay - Compressor clutch Air conditioning (A/C) Female YELLOW Behind front of centre console

YPP100090

Cav

Col

CCT

30 85 86 87

NW

ALL

UB

ALL

G

ALL

NK

ALL

DEFENDER V8i

C1214

CONNECTOR

@_) Main harness to air conditioning (A/C) harness Male RED Behind front of centre console

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

NW

ALL

2

PS

ALL

C1215

CONNECTOR

@_) Earth Female BLACK Under LH side of fascia

AAU1 010

Cav

Col

CCT

1

B

ALL

DEFENDER V8i

C1217

CONNECTOR

@_) Fuse box- Engine compartment Eyelet BRASS, TIN-PLATED Beneath engine compartment fuse box

NO CONNECTOR FACE

DEFENDER V8i

Cav

Col

CCT

1

N

ALL