RAM 2500 Van V8-5.9L VIN Z (1997)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
PCM - Erroneous MIL ON/Driveability Improvements
NO: 18-12-97
GROUP: Vehicle Performance
DATE: Mar. 14, 1997
SUBJECT:
Erroneous MIL Illumination/Driveability Improvements
MODELS:
1997 (AB) Ram Van/Wagon
1997 (AN) Dakota
1997 (BR) Ram Truck
1997 (TJ) Wrangler
1997 (XJ) Cherokee
1997 (ZJ) Grand Cherokee
SYMPTOM/CONDITION:
NOTE:
THIS FLASH UPDATE DOES NOT APPLY TO WRANGLER MODELS BUILT PRIOR TO JULY 15, 1996 (MDH 01-15-XX) 8 DIGIT PCM
PART NUMBER. APPLICABLE MODELS CAN BE IDENTIFIED WITH A 10 DIGIT PCM PART NUMBER.
DIAGNOSIS:
Using the Mopar Diagnostic System (MDS) or the Diagnostic Scan Tool (DRB III) with the appropriate Diagnostic Procedures Manual, verify all
engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) are present, record them on the repair order and repair as
necessary before proceeding further with this bulletin. If no DTC's or those listed above are present and any of the above symptoms have been
experienced, perform the Repair Procedure.
NOTE:
WHENEVER A POWERTRAIN CONTROL MODULE (PCM) IS REPLACED DUE TO FAILURE, THE SOFTWARE OF THE
