Pinpoint Test J : U0140:00: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
U0140:00
Refer to Wiring Diagrams Cell Trailer/Camper Adapter for schematic and connector information.
Normal Operations and Fault Conditions
With the ignition ON, the BCM sends messages to the TBM through the GWM over the HS-CAN1. If the TBM does not receive these messages within the specified time frame, the TBM sets a DTC. For information on the messages sent to the TBM by the BCM, REFER to: Auxiliary Brake System - Vehicles With: Trailer Brake Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | This DTC sets in continuous memory and on-demand if the TBM does not receive any network messages from the BCM. This can be due to a BCM failure, a circuit failure on the HS-CAN1 or an excessive load on the network. |
Possible Sources
- Wiring, terminals or connectors
- Network communication concern
- GWM
- BCM
- TBM