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.

ACTIVE DTC

Ignition on, engine not running.
With a scan tool, select View DTCs.
Is the status Active for this DTC?

Yes
- Refer to U0121-87-LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE - MISSING MESSAGE and perform the U0121-Lost Communication with Anti-Lock Brake Module diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.