Engine Controls - Premature A/T Overdrive Clutch Wear
NUMBER: 18-020-03GROUP: Vehicle Performance
DATE: May 9, 2003
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2132 OR HIGHER, AVAILABLE MAY 12, 2003.
SUBJECT:
Flash: Overdrive (OD) Clutch Wear
OVERVIEW:
This bulletin involves selectively erasing end reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2004 (CS) Pacifica
NOTE:
THE BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 41TE TRANSMISSION (SALES CODE DGL) BUILT ON OR BEFORE APRIL 4, 2003.
DISCUSSION:
Some vehicles may exhibit premature OD clutch wear as a result of customer driving habits (for example: repeated kick-down/up-shifts, change-mind shifts) If the vehicle has experienced premature transmission OD clutch wear and was built on or before April 4, 2003, verify the PCM has the latest software revision level.
If a flash update is available, perform the Repair Procedure.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
NOTE:
USING A SCAN TOOL (DRBIII(R)) WITH THE APPROPRIATE DIAGNOSTIC PROCEDURES, VERIFY ALL ENGINE SYSTEMS ARE FUNCTIONING AS DESIGNED. IF DTCS ARE PRESENT RECORD THEM ON THE REPAIR ORDER AND REPAIR AS NECESSARY BEFORE PROCEEDING FURTHER WITH THIS BULLETIN.
NOTE:
WHENEVER A CONTROLLER IS REPLACED OR REPROGRAMMED, THE SOFTWARE IN THE CONTROLLER AND DRBIII(R) MUST BE VERIFIED AS HAVING THE LATEST REVISION LEVEL.
1. Connect a battery charger and set as close to 14 volts charge as possible.
2. Flash the PCM using the TechCONNECT/MDS2 and DRBIII(R).
NOTE:
DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (TCM, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE. ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED.
NOTE:
THE FOLLOWING STEPS ARE REQUIRED BY LAW.
3. Type the necessary information on the "Authorized Software Update Label" pin 04669020 (Fig. 1). Attach the label to the PCM as necessary and cover the label(s) with the clear plastic overlay.
4. Type the necessary information on the "Authorized Modification Label" p/n 04275086AB and attach near the VECI label (Fig. 2).
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: