Diagnostic Test

DTC IS ACTIVE 

1. Ignition on, engine not running.
2. With the scan tool, select view DTCs.
3. Monitor the scan tool for at least two minutes.

   Is the status Active for this DTC?

   Yes 

   • Refer to DIAGNOSIS AND TESTING and perform the diagnostic procedure for U0101 - LOST COMMUNICATION WITH TRANSMISSION CONTROL MODULE (TCM).

   No 

   • Refer to STORED LOST COMMUNICATION DTCS and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.