Auto Headlamp Leveling Module (AHLM)

U0002-00-CAN C BUS OFF PERFORMANCE

For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Ignition run time is greater than one second. Battery voltage between 9 and 16 volts. Engine run time greater than three seconds.

- Set Condition:
Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.





ACTIVE DTC

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.

1. Turn the ignition on.
2. With a scan tool, read DTCs.

Is the status Active for this DTC?

Yes

- Diagnose the U0002-00 CAN C BUS OFF PERFORMANCE as the U0001 CAN C BUS CIRCUIT test. and perform the U0001-Can C Bus diagnostic procedure U0001.

No

- Stored Lost Communication DTCs and perform the Stored Lost Communication DTCs diagnostic procedure.