A/T - TCM Generic Scan Tool Response Problems
NUMBER: 18-10-00GROUP: Vehicle Performance
DATE: July 28, 2000
SUBJECT:
No Response From TCM When Using Some Generic Scan Tools
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Transmission Control Module (TCM) with new software.
MODELS:
2000 (GS) Chrysler Voyager (European Market)
2000 (JA) Cirrus/Stratus/Breeze
2000 (JX) Sebring Convertible
2000 (NS) Town & Country/Caravan/Voyager
2000 (PR) Prowler
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A 41TE/AE OR 42LE AUTOMATIC TRANSAXLE BUILT PRIOR TO THE FOLLOWING DATES:
DISCUSSION:
Models built prior to the dates in the above table may not respond properly to diagnostic requests from some aftermarket generic scan tools. In these cases, the aftermarket generic scan tool may indicate that the Transmission Control Module (TCM) is not responding. This may lead to unnecessary diagnostic procedures and or replacement of good TCM's.
NOTE:
THE DRB III(R), MDS21 AND D.A.R.T. WORK PROPERLY WITH TCM COMMUNICATION.
NOTE:
WHENEVER A TRANSMISSION CONTROL MODULE (TCM) IS REPLACED, THE SOFTWARE OF THE REPLACEMENT CONTROLLER MUST BE VERIFIED FOR THE LATEST REVISION LEVEL. USE THE FLASH PROCEDURE TO UPDATE REPLACED CONTROLLERS AS NECESSARY.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
NOTE:
THE MDS2 AND DRB III(R) ARE REQUIRED TO PERFORM PART OF THIS REPAIR. THE MDS2 SYSTEM MUST BE OPERATING AT CIS CD2063 OR HIGHER.
REPAIR PROCEDURE:
1. Log onto the MDS2 system.
2. Connect the MDS2 (Mopar Diagnostic System) and DRB III(R) (Scan Tool) to the vehicle and switch the ignition key to "ON".
3. Use the arrow keys and select # 2 CONNECT TO MDS1 OR MDS2 on the DRB III(R) MAIN MENU SCREEN.
4. Use the arrow keys and select # 2 RUN MDS2 APPLICATION on the DRB III(R) MAIN MENU SCREEN.
NOTE:
ONCE MDS2 DRB III(R), AND VEHICLE COMMUNICATION HAS BEEN ESTABLISHED, THE "CANNOT READ VIN FROM DRB III(R) MESSAGE (ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE ,"OK" BUTTON ON THE MDS2 TO REQUEST A MDS2 SESSION FOR THE VEHICLE VIN INDICATED. PRESS THE "OK" BUTTON WHEN ASKED TO BEGIN SESSION.
5. Push the FLASH tab on the MDS2.
NOTE:
A MESSAGE MAY APPEAR THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE, ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.
6. Select READ PART NUMBERS FROM VEHICLE and click SHOW UPDATES on the MDS2.
NOTE:
A MESSAGE MAY APPEAR THAT INDICATES NO UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED, AND NO UPDATES ARE AVAILABLE, ANOTHER VEHICLE CONDITION EXISTS THAT WILL REQUIRE FURTHER INVESTIGATION.
7. Select the new software part number with the light pen and click UPDATE CONTROLLER SOFTWARE.
8. The MDS2 and DRB III(R) will prompt for any operator action needed during the remainder of the reprogramming process.
NOTE:
THE FOLLOWING STEPS ARE REQUIRED BY LAW.
9. Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Figure 1). Attach the label to the PCM and cover the label with the clear plastic overlay.
10. Type the necessary information on the "Authorized Modification Label" p/n 04275086 and attach the label near the VECI label (Figure 2).
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No. 08-19-51-91 Module Reprogram 0.5 Hrs.
FAILURE CODE: FM - Flash Module