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Diagnostic Test

VERIFY DTC IS ACTIVE
NOTE:
Make sure the IOD fuse is installed and the battery is fully charged before proceeding.
1. Turn the ignition on.
2. With the scan tool, read the active DTCs.
  Does the scan tool display active: U0146-LOST COMMUNICATION WITH CENTRAL GATEWAY?
  
  Yes
  - Refer to U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) and perform the diagnostic procedure.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.