Diagnostic Test

VERIFY DTC IS ACTIVE
NOTE:
Make sure 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: U0101-00-LOST COMMUNICATION WITH TCM?
  
  Yes
  - Refer to the DTC INDEX article and perform the U0101-LOST COMMUNICATION WITH TCM diagnostic procedure.
  No
  - Refer to DIAGNOSIS AND TESTING and perform the STORED LOST COMMUNICATION DTCs diagnostic procedure.