Diagnostic Test

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

NOTE:

Make sure the battery voltage is between 10 and 16 volts before proceeding.

Turn the ignition on.
With the scan tool, create a Vehicle Scan Report and attach it to the repair order
With the scan tool, read RF Hub DTCs.
Is the DTC active?

Yes
- For the DTC U0001-00 Can C Bus, use the U0002-00 Can C Bus Off Performance diagnostic procedure.
- Perform the U0002-00 CAN C Bus Off Performance diagnostic procedure in the BCM. Refer to U0002-00-CAN C BUS OFF PERFORMANCE .
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .