Diagnostic Test

WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

Turn the ignition on.
With the scan tool, read ABS DTCs and record on the repair order.
With the scan tool, erase DTCs.
Cycle the ignition from off to on.
With the scan tool, read DTCs.
Is the DTC active?

Yes

NOTE:
Diagnose the U0002-88 CAN C BUS OFF PERFORMANCE as the U0010-00-CAN INTERIOR BUS test.
- Perform the U0010-00-CAN INTERIOR BUS diagnostic procedure. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX - 1500 article .
No
- Perform the STORED LOST COMMUNICATION DTCs diagnostic procedure. Refer to DIAGNOSIS AND TESTING .