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.
- CHECK IF TCM IS CORRECT
Flash and reprogram the TCM with the correct software per the Service Information.
Perform NAG1 TRANSMISSION VERIFICATION TEST .
Did the DTC reset after the Verification Test?
Yes
- Using the schematics as a guide, check the Transmission Control Module (TCM) pins, terminals, and connectors 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 per the Service Information. Refer to MODULE-TRANSMISSION CONTROL .
- Perform NAG1 TRANSMISSION VERIFICATION TEST .
No
- Test Complete.