Instruments - Erroneous Indicator lamp Illumination
NUMBER: 08-004-03GROUP: Electrical
DATE: March 14, 2003
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE TechCONNECT/MDS2 MUST BE OPERATING WITH CIS CD2129 OR HIGHER, AVAILABLE MARCH 31, 2003
SUBJECT:
Flash: Electro Mechanical Instrument Cluster - erroneous indicator lamps
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Electro Mechanical Instrument Cluster (MIC) with new software.
MODELS:
2002 - 2003 (DR) Ram Truck
SYMPTOM/CONDITION:
Three conditions have been identified which may be caused by communication errors between the Electro Mechanical Instrument Cluster (MIC) and other electronic modules on the vehicle.
1. An intermittent false "Check Gauges" on diesel engine equipped vehicles.
2. An intermittent false chime and "Low Wash" indicator. A valid "Low Wash" indication will occur for at least a 30 second interval. With this false condition, the chime will occur followed by the "Low Wash" indicator which will last for a half second or less.
3. A "Trans Temp" Indicator on a manual transmissions equipped vehicle.
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 Symptom/Condition is present, perform the Repair Procedure.
EQUIPMENT REQUIRED
REPAIR PROCEDURE:
NOTE:
WHEN FLASH REPROGRAMMING THE MIC, IT IS IMPORTANT THAT NO ELECTRONIC COMMUNICATION OCCURS BETWEEN THE MIC AND OTHER MODULES IN THE VEHICLE. ADDITIONAL STEPS HAVE BEEN ADDED TO THE FLASH PROCEDURE TO PREVENT THIS FROM HAPPENING.
1. Inspect the radio face plate. The radio sales code is printed on the face of the radio. If the vehicle is equipped with an "RAZ" radio, it must be removed from the instrument panel and disconnected to eliminate the possibility of any electronic communication between the radio and the instrument cluster during the flash procedure.
2. Remove the ABS module fuse (# 35) from the fuse panel. This will prevent any communications between the ABS module and the instrument cluster during the flash procedure.
3. Connect a battery charger and set as close to 14 volts charge as possible.
4. Flash the MIC using the TechConnect/MDS2 (Mopar Diagnostic System) and DRBIII(R).
NOTE:
DUE TO THE REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (PCM, TCM, BCM, 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.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE
FAILURE CODE