Diagnostic Test

VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE:

Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.

With the scan tool, read active Cluster DTCs.
Is this DTC active?

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