Diagnostic Test
WARNING: This page is about a different car, the 2008 Dodge Magnum, 2008 Dodge Charger, and 2008 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
- 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 .
No
- Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the TCM per the Service Information. Refer to DESCRIPTION .
- Perform NAG1 TRANSMISSION VERIFICATION TEST .