Lighting - Cannot Adjust Compass/Radio/A/C Illumination
NUMBER: 08-035-03GROUP: Electrical
DATE: November 28, 2003
THIS BULLETIN IS BEING PROVIDED IN ADVANCE. THE SOFTWARE WILL BE AVAILABLE ON TechCONNECT ON OR AFTER DECEMBER 22, 2003.
SUBJECT:
Flash - Panel Dimming Diagnostic Trouble Code (DTC), Intermittent Fluctuation of Stop Lamp Signal Intensity, or Front Lamps Flash With RKE Unlock Inoperative.
OVERVIEW:
This bulletin involves reprogramming the Body Control Module (BCM).
MODELS:
2004 (RG) Chrysler Voyager (International Markets)
2004 (RS) Town & Country/Caravan/Voyager
SYMPTOM/CONDITION:
The vehicle operator may describe:
^ The Cluster, Overhead Console, radio and climate control system illumination is not adjustable when the headlamp switch is in the "ON" or "AUTO" position.
^ On RS vehicles built on or after July 1, 2003 (MDH 0701XX) through and including August 11, 2003 (MDH 081 lxx), intermittent fluctuation of stop lamp signal intensity after the brake pedal is applied.
^ On RG vehicles, the front lamps do not flash when the RKE fob unlock button is actuated.
DIAGNOSIS:
1. With the ignition switch in the "RUN" position, determine the BCM software part number currently in the vehicle. Using the DRBIII(R) select:
a. "DRBIII(R) Standalone"
b. "1998 - 2004 Diagnostics"
c. "All (Except Below)"
d. "Body"
e. "Body Computer"
f. "Module Display"
g. Record the BCM "Software p/n" on the repair order for later reference.
If the BCM "Software p/n" is 04836966AG (or higher), further diagnosis is necessary. This bulletin does not apply.
If the customer describes the Symptom/Condition and the BCM "Software p/n" is 04836966AF (or lower), perform the Repair Procedure.
SPECIAL TOOLS/EQUIPMENT REQUIRED:
NOTE:
An updated J1962 cable has been released. This cable has a red colored connector at the DRBIII(R) connection. Use this cable whenever a flash is being performed.
REPAIR PROCEDURE:
NOTE:
Whenever a controller is reprogrammed, the software in the DRBIII(R) must be programmed with the latest revision level available.
1. Open the hood, install a battery charger and verify battery state is above 12.5 volts.
2. Connect the DRBIII(R) to TechCONNECT and the vehicle. Open TechTOOLS and verify that the "Device Status: DRB Connected" message is in the upper right corner of the TechTOOLS screen.
3. TechTOOLS should automatically populate the VIN in the "Vehicle Criteria" area and the available updates. If not, manually enter the VIN then TechTOOLS will populate the available updates.
4. Select the "BCM" calibration.
5. Select the "Download/Update" button.
6. Monitor the "Flash Download/Update Progress" window on the TechCONNECT and follow the instructions on TechCONNECT/DRBIII(R) to complete the flash process.
NOTE:
Due to the BCM programming procedure, a DTC may be set in other modules (TCM, PCM, MIC, SKIM, etc.) within the vehicle, if so equipped. Some DTC's may cause the MIL to illuminate. Check all modules using "Module Scan", record the DTC's, and erase these DTC's prior to returning the vehicle to the customer. Erase any DTC's in the PCM only after all other modules have had their DTC's erased.
7. Turn the headlamp switch to the "ON" position, start the engine, and verify that the "Panel Dimming Output Short" DTC is not present in the BCM.
8. If the DTC is present, refer to the appropriate Body Diagnostic Procedures manual for a possible wiring issue. If the DTC is not present, return the vehicle to the customer.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.