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

Ignition on, engine not running.
With the scan tool, select view DTCs.
Does the scan tool display this DTC as active?

Yes
- Perform the U1106-88-CAN C SIGNAL MISSING - BUS OFF diagnostic procedure. Refer to U1106-88-CAN C SIGNAL MISSING - BUS OFF .
No
- Perform the STORED LOST COMMUNICATION DTCS diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .