Pinpoint Test Z : DTC U0140:00: Notes
Diagnostic Overview
Diagnostics in this article assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to Diagnostic Methods in Service Information for information about these practices.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub-Type Information | This CMDTC sets in the HVAC module if data messages received from the BCM over the HS-CAN are missing for 5 seconds or more. For a complete list of all network messages, refer to Module Communications Network . |
Possible Sources
- BCM
- HVAC module
Visual Inspection and Diagnostic Pre-checks
- Inspect loose or corroded BCM and HVAC module connections.