Engine Controls - Slow Initial Acceleration Speed

01 Initial take-off acceleration less than expected

24 11 05

2023535/3

November 22, 2011.

Supersedes Technical Service Bulletin Group 24 number 10 - 53 dated November 4, 2010 for reasons listed below.





Affected Vehicle





Condition
The customer perception is that the initial acceleration is less than expected, similar to a short turbo lag.

This is only a customer comfort issue. This condition does not result in hesitation or stalling.

Technical Background

Software update needed.

Production Solution

New software in the control module (J623) addressed the condition.

1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.





2. Update the ECM 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.