Engine Controls - PCM Update For Cruise Control Function
NUMBER: 18-028-10GROUP: Vehicle Performance
DATE: October 16, 2010
HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF THE wiTECH DIAGNOSTIC APPLICATION WINDOW.
THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 11.01 OR HIGHER TO PERFORM THIS PROCEDURE.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Speed Control Operation Improvements
OVERVIEW:
This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2009-2010 (JC) Journey
2007 - 2010 (JS) Avenger/Sebring/Sebring Convertible
2008 - 2010 (RI) Town & Country/Grand Voyager
NOTE:
This bulletin applies to RT vehicles equipped with a 6-speed automatic transmission (sales code DG2) built before September 15, 2010 (MDH 091 5XX).
NOTE:
This bulletin applies to JC vehicles equipped with a 6-speed automatic transmission (sales code DG2) built before September 28, 2010 (MDH 0928XX).
NOTE:
This bulletin applies to JS vehicles equipped with a 6-speed automatic transmission (sales code DG2) built before September 23, 2010 (MDH 0923XX).
SYMPTOM/CONDITION:
The speed control operation has changed to correct the following conditions:
i. Adjust the set speed control to react when the speed drops to 2-3 MPH below the target.
ii. A RPM increase while going downhill due to a transmission downshift.
DIAGNOSIS:
Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
If the vehicle operator describes or experiences the Symptom/Condition, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
1. Reprogram the PCM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To Group 8 - Electrical > Electronic Control Modules - Service Information > Module - Powertrain Control > Standard Procedures > PCM/ECM Programming - Gas. After PCM reprogramming, the following must be performed:
a. Clear any DTC's that may have been set in other modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow the tech to clear them.
b. On 62TE equipped vehicles clear the Variable Line Pressure (VLP) Counters, found in the Misc Function menu for the PCM ECU.
c. Perform the Quick Learn function, found in the Misc Function menu for the TCM ECU.
2. Type the necessary information on the "Authorized Modification Label" and attach it near the VECI label.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.