Engine Controls - Erroneous MIL/DTC's
NUMBER: 18-018-03GROUP: Vehicle Performance
DATE: Apr. 25, 2003
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE MDS2 MUST BE OPERATING WITH CIS CD2132 OR HIGHER, AVAILABLE MAY 12, 2003. THE DRBIII(R) MUST BE OPERATING AT LEVEL 55.7. ISIS MUST BE AT CD2132 (AVAILABLE JUNE 4, 2003) OR HIGHER.
SUBJECT:
Flash: MIL Illumination, Erroneous Diagnostic Trouble Codes (DTCs)
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software.
MODELS:
2003 (PL) Neon/SX 2.0
2003 (PL) SRT-4
2003 (PT) PT Cruiser
NOTE:
THIS BULLETIN APPLIES TO PL VEHICLES EQUIPPED WITH A 2.0L ENGINE (SALES CODES ECB OR ECH) OR A 2.4L ENGINE (SALES CODE EDV) BUILT ON OR BEFORE MARCH 31, 2003 (MDH 0331XX) AND PT VEHICLES EQUIPPED WITH A 2.0L ENGINE (SALES CODE ECC) OR A 2.41 ENGINE (SALES CODE EDZ OR EDV) BUILT ON OR BEFORE APRIL 28, 2003 (MDH 0428XX).
SYMPTOM/CONDITION:
Vehicle operator may experience MIL illumination.
Technicians may find the following DTC(s):
P0071 - Ambient Temperature Sensor Performance.
P0111 - Intake Air Temperature Sensor Stuck.
P0116 - Engine Coolant Temperature Performance.
P0129 - Barometric Pressure Out of Range - Low (Turbo only).
P1115 - General Temperature Sensor Performance.
DIAGNOSIS:
Using a Scan Tool (DRBIII(R) with the appropriate Diagnostic Procedures Manual, verify all engine systems are functioning as designed. If DTCs 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 vehicle operator describes or the technician experiences the Symptom/Condition, perform the Repair Procedure.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
REPAIR PROCEDURE:
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 MEL 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 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: