Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Engine Controls - MIL ON/Engine Rough Running
2003 Chrysler 300M V6-3.5L VIN MSECTION Engine Controls - MIL ON/Engine Rough Running
NUMBER: 18-021-02
GROUP: Vehicle Performance
DATE: Aug. 26, 2002
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2116 OR HIGHER, AVAILABLE SEPT. 16, 2002.
SUBJECT:
Flash: MIL Illumination With Possible Engine Roughness
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2003 (LH) 300M/Concorde/Intrepid
NOTE:
THE BULLETIN APPLIES TO VEHICLES BUILT PRIOR TO AUGUST 23, 2002 (MDH 0823XX).
SYMPTOM/CONDITION:
MIL illumination with possible rough running engine and any or all of the following Diagnostic Trouble Codes (DTC's) P2302, P2305, P2308, P2311, P2314, P2317, Ignition Coil Secondary Circuit.
DIAGNOSIS:
Verify the condition of the ignition secondary circuit, spark plugs, wire connections, and ignition coils and repair as necessary before proceeding. If Diagnostic Trouble Codes (DTC's) are present other than those listed above, record them on the repair order and repair as necessary before proceeding further with this bulletin. If the condition(s) DTC's listed are present, perform the Repair Procedure.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
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 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" 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:
GROUP: Vehicle Performance
DATE: Aug. 26, 2002
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2116 OR HIGHER, AVAILABLE SEPT. 16, 2002.
SUBJECT:
Flash: MIL Illumination With Possible Engine Roughness
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2003 (LH) 300M/Concorde/Intrepid
NOTE:
THE BULLETIN APPLIES TO VEHICLES BUILT PRIOR TO AUGUST 23, 2002 (MDH 0823XX).
SYMPTOM/CONDITION:
MIL illumination with possible rough running engine and any or all of the following Diagnostic Trouble Codes (DTC's) P2302, P2305, P2308, P2311, P2314, P2317, Ignition Coil Secondary Circuit.
DIAGNOSIS:
Verify the condition of the ignition secondary circuit, spark plugs, wire connections, and ignition coils and repair as necessary before proceeding. If Diagnostic Trouble Codes (DTC's) are present other than those listed above, record them on the repair order and repair as necessary before proceeding further with this bulletin. If the condition(s) DTC's listed are present, perform the Repair Procedure.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
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 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" 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:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.