Diagnostic Test

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, read and record Environmental Data (EV Data).
3. With the scan tool, read DTCs and record on vehicle work order.
4. With the scan tool, erase DTCs.
5. Cycle the ignition switch.
6. With the scan tool, read the DTCs.
  Is the DTC active at this time?
  
  Yes
  - Refer to the BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX - 1500 article and perform the U0140-00-LOST COMMUNICATION WITH BODY CONTROL MODULE (BCM) diagnostic procedure.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCs diagnostic procedure.