Diagnostic Test

WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DTC IS ACTIVE

Cycle the ignition on.
With the scan tool, read the active DTCs.
Does the scan tool display; U0140-00-LOST COMMUNICATION WITH BODY CONTROL MODULE as active?

Yes
- Refer to the DTC INDEX article and perform the U0140-LOST COMMUNICATION WITH BODY CONTROL MODULE diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCs diagnostic procedure.