Hands Free Module (HFM)

U0167-LOST COMMUNICATION WITH INTRUSION TRANSCEIVER CONTROL MODULE





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 Intrusion Transceiver Module (ITM) 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 Hands Free Module (HFM) DTCs.

Is this DTC active?

Yes

- Perform the U0167-Lost Communication with diagnostic procedure. Totally Integrated Power Module (TIPM)

No

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