Pinpoint Test M : DTC: U0140: Notes
WARNING: This page is about a different car, the 2018 Ford F-550 Super Duty, 2018 Ford F-450 Super Duty, 2018 Ford F-350 Super Duty, and 2018 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The DSM and the BCM communicate using the MS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0140 | Lost Communication With Body Control Module (GEM) | Set by the DSM whenever it has lost communication to the BCM for 15 seconds or longer while DSM input voltage is between 10 and 15 volts. |
Possible Causes
- Module communication
- DSM
- BCM