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 ACTIVE DTCS

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 PDM DTCs.
Is the DTC active?

Yes
- Perform the U0199-00-Lost Communication with Driver Door Module diagnostic procedure in the BCM. Refer to U0199-87-LOST COMMUNICATION WITH DRIVER DOOR MODULE - MISSING MESSAGE .
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .