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.

VERIFY DTC IS ACTIVE

NOTE:

Make sure the IOD fuse is installed and the battery is fully charged before proceeding.

Turn the ignition on.
With the scan tool, read active DTCs.
Is this DTC active?

Yes
- Refer to the DTC INDEX - 1500 and perform the U0103-Lost Communication with Electronic Shift Module (ESM) diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.