Normal Operation
WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
- DTC U0140:00 (Lost Communication With Body Control Module: No Sub-Type Information) - sets in continuous memory in the Heated Steering Wheel Module (HSWM) 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. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK .
- DTC U0164:00 (Lost Communication With HVAC Control Module: No Sub Type Information) - sets in continuous memory in the HSWM if data messages received from the HVAC module over the MS-CAN are missing for 5 seconds or more. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK .
- DTC U0256:00 (Lost Communication With Front Controls Interface Module "A": No Sub Type Information) - sets in continuous memory in the HSWM if data messages received from the Front Controls Interface Module (FCIM) over the MS-CAN are missing for 5 seconds or more. For a complete list of all network messages, refer to MODULE COMMUNICATIONS NETWORK .
This pinpoint test is intended to diagnose the following:
- BCM
- HVAC module
- FCIM