RAM 3500 Truck 2WD L6-5.9L DSL Turbo VIN C (2003)
Instrument Panel Control Module: Customer Interest
Instruments - Erroneous Indicator lamp Illumination
NUMBER: 08-004-03
GROUP: 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).
