A/T - Driveline Shudder During 3-4 Upshifts
NO: 21-18-95GROUP: Transmission
DATE: Nov. 24, 1995
SUBJECT:
Driveline Shudder During Transaxle 3-4 Upshifts
MODELS:
1996 (LH) Concorde/Intrepid/Vision/LHS/New Yorker
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 3.5L ENGINE BUILT PRIOR TO SEPT. 30, 1995 (MDH 0930XX).
SYMPTOM/CONDITION:
The vehicle exhibits a driveline shudder during the 3-4 upshift with very light throttle opening (less than 15 degrees) between 35 and 45 MPH.
DIAGNOSIS:
Connect the Scan Tool (DRB III) to the 16 way [1][2]diagnostic connector located below the instrument panel on the drivers side of the vehicle and check the part number of the Transmission Control Module (TCM). If the part number is 4606188 or 4606189 (Equipped With Autostick), perform the Repair Procedure. If the part number is not one of the two listed above, this bulletin does not apply.
EQUIPMENT/PARTS REQUIRED:
1 CH6000 Scan Tool (DRB III)
1 CH7035 General Purpose Interface Bus Cable (GPIB)
1 CH7000 J1962 Cable
1 4669020 Label - Authorized Software Update
1 4275086 Label - Authorized Modification
NOTE:
THE MOPAR DIAGNOSTIC SYSTEM (MDS) IS REQUIRED TO PERFORM THE FOLLOWING REPAIR. THE SYSTEM MUST BE OPERATING WITH RELEASE 18 OR HIGHER AND TECHNICAL INFORMATION LIBRARY (TIL) CD RELEASE 1094 OR HIGHER INSTALLED.
REPAIR PROCEDURE:
This bulletin involves reprogramming (flashing) the TCM with new software (calibrations).
1. Connect the MDS (Mopar Diagnostic System) and DRB III (Scan Tool) to the vehicle and power them up.
NOTE:
FOR THE 1996 MODEL YEAR AND FUTURE VEHICLES, THE TCM CAN BE REPROGRAMMED FROM THE [1][2]DIAGNOSTIC CONNECTOR. THE FLASH PROGRAMMING KIT (CH5500) IS NOT NEEDED.
2. Use the arrow keys on the DRB III and from the MAIN MENU Screen select MDS DIAGNOSTICS.
3. Use the arrow keys on the MDS and select DIAGNOSTIC MENU from the MDS screen, then press NEXT MENU.
4. Use the arrow keys on the MDS and select CONTROLLER PROGRAMMING, then press NEXT MENU.
5. Use the arrow keys and select PROGRAM CONTROLLER PART on the MDS, then press NEXT MENU.
6. Follow the steps presented on the MDS and DRB III which will allow the DRB III to obtain the current part number of the PCM.
7. The MDS will display the description of the updatable PCM and/or TCM on the vehicle and the appropriate replacement part number(s). Select the description of the TCM, then press NEXT MENU to begin programming.
If both the PCM and TCM on the vehicle have already been updated or programmed, a NO UPDATES AVAILABLE message will be displayed. Check the part number of the TCM on the vehicle and compare it to the part number displayed. If the TCM has already been updated, then another condition exists that will require further diagnosis and repair.
8. The MDS and DRB III will prompt for any operator action needed during the remainder of the programming process.
NOTE:
THE FOLLOWING STEPS ARE REQUIRED BY FEDERAL LAW.
9. Type the necessary information on the Authorized Modification Label and attach the label near the Vehicle Emission Control Information (VECI) Label.
10. Type the necessary information on the "Authorized Software Update Label" and attach it to the TCM and cover label with a clear plastic sticker.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No: 08-19-50-90 0.5 Hrs.
FAILURE CODE: FM - Flash Module