Diagnostic Test

WARNING: This page is about a different car, the 2016 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 U0010-00-CAN INTERIOR BUS .
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .