Pinpoint Test AF : U0165:00: Notes
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
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