Pinpoint Test D : U0140:00: Notes
Refer to Vehicle Dynamic Systems for schematic and connector information.
Normal Operation and Fault Conditions
With the ignition ON, the BCM sends messages to the ABS module and the SASM over the HS-CAN. If the ABS module or the SASM does not receive these messages within the specified time frame, the module sets a DTC. This can be due to a BCM failure, a circuit failure on the HS-CAN or an excessive load on the network.
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 in the ABS module if any of the following messages is missing from the BCM; odometer value, parking brake status, vehicle mode or vehicle configuration information. This DTC sets in continuous memory and on-demand in the SASM if the module does not receive the power mode or vehicle configuration information messages. |
Possible Causes
- Network communication concern
- Over or undervoltage concerns
- BCM
- ABS module
- SASM