Diagnostic Test

VERIFY THE DIAGNOSTIC TROUBLE CODE (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 BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX and perform the U0154-87-LOST COMMUNICATION WITH OCCUPANT CLASSIFICATION MODULE-MISSING MESSAGE diagnostic procedure.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the STORED LOST COMMUNICATION DTCs diagnostic procedure.