Engine Controls - MIL ON/False DTC's Set/Rough Idle
NUMBER: 18-033-02GROUP: Vehicle Performance
DATE: Oct. 28, 2002
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2121 OR HIGHER, AVAILABLE NOVEMBER 25, 2002.
SUBJECT:
Flash: MIL Illumination and Erroneous DTCs, Rough Idle, A/C Performance
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2003 (JR) Sebring Convertible/Sebring Sedan/Stratus Sedan
NOTE:
THE BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 4 CYLINDER ENGINE (SALES CODES EDZ, EDV, OR ECC).
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A NEXT GENERATION CONTROLLER (NGC) POWERTRAIN CONTROL MODULE (PCM) BUILT PRIOR TO OCTOBER 24, 2002 (MDH 1024XX).
SYMPTOM/CONDITION:
MIL illumination with any or all of the Erroneous Diagnostic Trouble Codes (DTC's) shown.
NOTE:
ADDITIONAL ERRONEOUS DTC'S MAY BE SET
Rough idle or RPM undershoot within 20 seconds following a hot engine restart or A/C engagement in hot ambient temperatures.
Poor A/C performance for longer than 10 seconds following wide open throttle operation.
DIAGNOSIS:
Using the Diagnostic Scan Tool (DRB III(R)) with the appropriate Diagnostic Procedures Manual, verify all engine systems are functioning as designed. If the condition(s) and/or DTC's listed are present, perform the Repair Procedure.
PARTS REQUIRED
EQUIPMENT REQUIRED
REPAIR PROCEDURE:
NOTE:
WHENEVER A PCM/TCM IS REPLACED OR REPROGRAMMED, THE SOFTWARE IN THE CONTROLLER AND DRB III(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 MDS2 (Mopar Diagnostic System) and DRB III(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" p/n 04669020 (Fig. 1). Attach the label to the PCM and/or TCM 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