Auto Highbeam Module (AHBM)

U0155-00-LOST COMMUNICATION WITH CLUSTER/CCN





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

- When Monitored:
Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

Totally Integrated Power Module (TIPM) is configured correctly.

- Set Condition:
Bus messages not received from the AHBM for approximately two to five seconds.





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.

1. With the scan tool, read active AHBM Module DTCs.

Is this DTC active?

Yes

- Perform the U0155-Lost Communication with Cluster/CCN diagnostic procedure. Totally Integrated Power Module (TIPM)

No

- Perform the Stored Lost Communication DTC diagnostic procedure. Stored Lost Communication DTCs