Pinpoint Test BR: Abs Module Communication Concern With VDM
Normal Operation and Fault Conditions
With the ignition ON, the VDM sends messages to the ABS module over the FD-CAN. 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 VDM 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 VDM, REFER to: Anti-Lock Brake System (ABS) and Stability Control - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS U0122:00 | Lost Communication With Vehicle Dynamics Control Module: No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the VDM within the allowed time. |
Possible Sources
- Network communication concern
- VDM