Driver Door Module (DDM)

U0164-00-LOST COMMUNICATION WITH HVAC CONTROL MODULE





For a complete wiring diagram, consult the Wiring Information.

- When Monitored:
Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

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





VERIFY DTC IS ACTIVE

NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding.

1. Turn the ignition on.
2. With the scan tool, read active Door Module DTCs.

Is this DTC active?

Yes

- Totally Integrated Power Module (TIPM) and perform the U0164-Lost Communication with HVAC Control Module.

No

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