Diagnostic Test
- PERFORM TCM REPLACEMENT PROCEDURE NOTE:
Controller is programmed with generic software and will not allow the correct vehicle Powertrain management.
- With the scan tool, perform the TCM replacement procedure.
Were you able to update the controller successfully?
Yes
- Test Complete.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .
No
- Using the schematics as a guide, check the Transmission Control Module (TCM) connectors and terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the TCM in accordance with the Service Information.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. Refer to NAG1 TRANSMISSION VERIFICATION TEST .
- With the scan tool, perform the TCM replacement procedure.