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Diagnostic Test

  1. 1)  P/N & D/R NOT IN CORRECT POSITION 
    NOTE: Before continuing, ensure communication can be established with the TCM. If the scan tool is unable to communicate with the TCM or if there are related communication DTCs present refer to the Communication Category and perform the appropriate symptom.

    Ignition on, engine not running.

    With the scan tool, read DTCs.

    Is the DTC active at this time? 

    Yes 

    1. Go To  2).

    No 

    1. Refer to the INTERMITTENT CONDITION diagnostic procedure.
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
  2. 2)  CHECKING TCM DTC(S) 

    Turn the ignition off.

    Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) . With the scan tool, read TCM DTCs.

    Is there any there Transmission DTC(s) present? 

    Yes 

    1. Refer to the appropriate Transmission symptom in the Transmission category.

    No 

    1. Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary. Replace and program the Powertrain Module in accordance with the Service Information. Refer to MODULE-POWERTRAIN CONTROL and STANDARD PROCEDURE - PCM/ECM/SKREEM PROGRAMMING .
    2. Perform the POWERTRAIN VERIFICATION TEST. (Refer to STANDARD PROCEDURE - POWERTRAIN VERIFICATION TEST) .
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