CATEGORY 18
VEHICLE PEFORMANCE...continued
TSB#
MODEL
SUBJECT/DESCRIPTION
18-001-12 Rev A 1/28/12
’12 (DD/DP)
Engine systems and PTO enhancements. This bulletin supersedes service bulletin 18.001/12, dated January 07, 2112. Cab chassis trucks equipped with a 6.7-liter Cummins diesel have a number of software improvements available. This latest service bulletin will include: Improvements to prevent unnecessary malfunction indicator lamp (MIL) illumination for: • P061A – ETC Level 2 Torque Performance •P20EE – ACR NOx Catalyst Efficiency Below Threshold – Bank 1 •P229F – Aftertreatment NOx Sensor Circuit Performance – Bank 1 Sensor 2 •P2609 – Intake Air Heater System Performance •P1123 – Power Take Off System Monitor Control Error •U010E – Lost Communication With Diesel Exhaust Fluid Control Unit Enhanced Diagnostics For: •Selective Catalyst Reduction (SCR) efficiency diagnostic improvements. Other Update: •Idle shutdown message on EVIC. •Turbo protection feature (Not displayed if vehicle is in park or no vehicle speed). Limits RPM at cold ambient to prevent turbo damage. •Scan tool display updates. •Correct operation of remote PTO. •System robustness improvements. The bulletin involves selectively erasing and reprogramming the engine control module (ECM) with new software.
18-013-12 3/17/12
’12 (DJ/D2)
Diagnostic and system improvements. This bulletin supersedes service bulletin 18-055-11, dated December 17, 2011. This bulletin involves selectively erasing and reprogramming the engine control module (ECM) with new software. The software package has improvements/enhancements available for the following DTC’s: • P049D – EGR Control Position Exceeded Learning Limit • P2002 – Diesel Particulate Filter Efficiency Below Threshold • P2195 – 02 Sensor 1/1 Out of Range High • P2196 – 02 Sensor 1/1 Out of Range Low • P2170 – 02 Sensor 1/2 Out of Range High • P2171 – 02 Sensor 1/2 Out of Range Low • P241A – 02 Sensor 1/1 and 1/2 Oxygen Concentration Mismatch • P2609 – Intake Air Heater System Performance Vehicles flashed to address the above codes should be driven and repair validated. If code(s) return, follow diagnostic procedures available in DealerCONNECT/TechCONNECT. The software also updates the ECU with other improvements: • Correct water in fuel (WIF) parameter • ScanTool may report a code as stored, even though the fault has been cleared by completing a significant number of drive cycles without a repeat occurrence. • Active codes not always displayed correctly. • Engine derate with IOD removed. This will help prevent turbo damage due to oil thickening in cold climate start up on new vehicles in transit. • Scan tool readiness reporting issues. • Other drivability enhancements. • EGR Valve cleaning and monitoring enhancements to help reduce occurrences of P049D. • Erroneous, brief brake lamp flash at key on. • Improve EVIC message regarding idle shut down. • Ability to read EGR valve gap an wiTECH
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A Publication of the TURBO DIESEL REGISTER