Diagnostic Test
- VERIFY DTC IS ACTIVE NOTE:
Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
- Turn the ignition on.
- With the scan tool, read active DTCs.
Is this DTC active?
Yes
- Refer to U0168-LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM) and perform the diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the diagnostic procedure.