AS68RC TCM Programming Procedure

AS86RC TCM PROGRAMMING PROCEDURE
PROGRAMMING THE TRANSMISSION CONTROL MODULE (TCM)

NOTE: When replacing a Transmission Control Module (TCM), the TCM must be programmed.

NOTE: Failure to properly program the TCM may result in the illumination of the Malfunction Indicator Lamp (MIL) and setting DTC(s).

NOTE: While performing the TCM programming procedure, the vehicle battery must be maintained between 10 and 16 volts. Ambient temperature must be between 0° C (32° F) 60° C (140° F). Vehicle must be in Park with brake pedal depressed.

NOTE: The total number of TCM reflashes and/or reflash attempts must be limited to a maximum of 50 times. The TCM is considered defective if more than 50 reflashes and/or reflash attempts have occurred.

NOTE: After installing a generic TCM into the vehicle and before the software flash has been performed, it is possible to illuminate the MIL and set a P0602 - TCM Not Programmed if the engine is started before the flash is completed. If DTC P0602 sets during programming, clear DTCs after the flash has completed.

1. Using the scan tool and Dealer Connect, download the appropriate TCM flash file to the scan tool.
2. Ignition on, engine not running.
3. Vehicle in park with the brake pedal depressed.
4. Following the menu on the scan tool, program the TCM.
5. After the TCM has been programmed, a TCM Quick Lean must be performed. Perform TCM QUICK LEARN - AS68RC TRANSMISSION AS68RC Transmission

NOTE: TCM Quick lean must be performed to prevent setting DTC P1679 - Calibration Not Learned after TCM programming.

6. With the scan tool, perform PTO Configuration (if equipped).
7. Clear any stored DTCs.
8. Road test the vehicle above 40 m.p.h. for at least two minutes.
9. With the scan tool, select View DTCs in the TCM.

Are there any DTCs present?

Yes

- Perform the appropriate diagnostic procedure(s).

No

- Test Complete
- Perform the AS68RC TRANSMISSION VERIFICATION TEST. AS68RC Transmission Verification Test.