Pinpoint Test AF : U0165:00: Notes
Refer to Auxiliary Climate Control , for schematic and connector information.
Normal Operation
The Rear Heating Ventilation Air Conditioning (RHVAC) module communicates with the HVAC control module over the Medium Speed Controller Area Network (MS-CAN). If Rear Heating Ventilation Air Conditioning (RHVAC) temperature and mode switch message is not received by the HVAC control module for 5 seconds a DTC is set. For a complete list of all network messages, refer to Module Communications Network .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0165:00 | Lost Communication With HVAC Control Module Rear: No Sub-Type Information | This DTC sets in continuous memory in the HVAC control module if data messages received from the Rear Heating Ventilation Air Conditioning (RHVAC) module over the Medium Speed Controller Area Network (MS-CAN) are missing for 5 seconds or more. |
Possible Sources
- Communication concern
- RHVAC module
- HVAC control module