Pinpoint Test D: Abs Module Communication Concern With BCM
Normal Operation and Fault Conditions
With the ignition ON, the BCM sends messages to the GWM over the HS-CAN1. The GWM relays these message to the ABS module over the HS-CAN2. If the ABS module does not receive these messages within the allotted time frame or if the messages contain invalid data, the module sets a DTC. This can be due to a BCM failure, a circuit failure on the network or an excessive load on the network. For information on the messages sent to the ABS module by the BCM, refer to Network Message Chart .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U0140:00 | Lost Communication With Body Control Module: No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the BCM within the allowed time. |
| ABS U0422:00 | Invalid Data Received From Body Control Module: No Sub Type Information | This DTC sets when the ABS module receives messages from the BCM, but the messages contain invalid data. |
Possible Sources
- Network communication concern
- GWM
- BCM