Pinpoint Test E : U0140:00: Notes
WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
- The HVAC control module communicates with the BCM over the MS-CAN. If the data from the BCM are missing for 5 seconds or more, the HVAC control module sets a DTC. For a complete list of all network messages, refer to Module Communications Network .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub-Type Information | The DTC sets in continuous memory in the HVAC control module if data messages received from the Body Control Module (BCM) over the Medium Speed Controller Area Network (MS-CAN) are missing for 5 seconds or more. |
Possible Sources
- BCM
- HVAC control module