Diagnostic Test
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
CHECK FOR ACTIVE DTCS
- With the scan tool, read the active WIN DTCs.
- Cycle the ignition switch from off to on at least 3 times, leaving the ignition on for a minimum of one minute per cycle.
- With the scan tool, read the active WIN DTCs.
Does the scan tool display: U0001-CAN C BUS as active?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the U0001-CAN C BUS diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCs diagnostic procedure.