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 the TIPM DIAGNOSTIC CODE INDEX and perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure.
No
- Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to STORED LOST COMMUNICATION DTCS .