HVAC, MTC

U0155-00-LOST COMMUNICATION WITH CLUSTER/CCN





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

- When Monitored:
With the ignition 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 Cluster/CCN for approximately two to five seconds.





VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE: Make sure the IOD fuse is installed and 12-volt battery voltage is between 10 and 16 Volts before proceeding.

1. Using the scan tool, read active HVAC DTCs.

Is this DTC active?

Yes

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

No

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