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Diagnostic Test

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  CHECK IF TCM IS FLASHABLE 
    NOTE: Controller is programmed with generic software and will not allow the correct vehicle Powertrain management.

    With the scan tool, record the vehicles controller part number.

    Select Use Controller Part Number under the Flash Tab.

    Flash the controller with the correct software.

    Were you able to update (flash) the controller successfully? 

    Yes 

    1. Test Complete.
    2. Perform NAG1 TRANSMISSION VERIFICATION TEST .

    No 

    1. 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 ELECTRICAL/ELECTRONIC CONTROL MODULES/TRANSMISSION CONTROL MODULE - DESCRIPTION)
    2. Perform NAG1 TRANSMISSION VERIFICATION TEST .
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