Diagnostic Test
- IS DTC ACTIVE NOTE:
For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.
- Turn the ignition on.
- With a scan tool, read the active DTCs.
Does the scan tool display: U0111-00-LOST COMMUNICATION WITH BATTERY ENERGY CONTROL MODULE?
Yes
- Refer to the DTC INDEX - 500E and perform the U0111-00-LOST COMMUNICATION WITH BATTERY ENERGY CONTROL MODULE diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.