Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC IS ACTIVE

Ignition on, engine not running.
With the scan tool, select view DTCs.
Monitor the scan tool for at least two minutes.
Is the status Active for this DTC?

Yes
- Refer to the DTC INDEX - 1500 and perform the diagnostic procedure for U0101 - LOST COMMUNICATION WITH TRANSMISSION CONTROL MODULE (TCM).
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.