Engine Controls - MIL ON/DTC P219C Stored In Memory
01 MIL on, DTC "Air/Fuel Ratio Imbalance" in ECM24 12 40
2026299/3
August 28, 2012.
Supersedes Technical Service Bulletin Group 24 number 11 - 94 dated October 21, 2011 for reasons listed below.
Affected Vehicles
Condition
^ MIL on.
^ DTC Air/Fuel Ratio Imbalance (e.g. P219C for cylinder # 1) stored in ECM.
^ List of DTCs to correlating cylinders
Technical Background
The diagnostic indicates "Air/Fuel Ratio Imbalance" in one or more cylinders. This is caused by an incorrect software setting.
Production Solution
Not Applicable.
Service
1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.
2. Update the ECM (J285) using the SVM action code as listed in the table above if necessary.
Warranty
Additional Information
The following Technical Service Bulletin will be necessary to complete this procedure:
^ TSB 2011732 00 Software Version Management (SVM), operating instructions.
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.
Attachment
^ TSB 2011732 00 Software Version Management (SVM), operating instructions.