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Diagnostic Test

WARNING: This page is about a different variant/trim than selected.

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.
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 Drive Lean must be performed. Refer to DIAGNOSIS AND TESTING and perform the DRIVE LEARN procedure.
6. Clear any stored DTCs.
7. Road test the vehicle above 40 m.p.h. for at least two minutes.
8. With the scan tool, select View DTCs in the TCM.
  Are there any DTCs present?
  
  Yes
  - Refer to DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure(s).
  No
  - Test Complete
  - Refer to STANDARD PROCEDURE and perform the TRANSMISSION VERIFICATION TEST.