Normal Operation and Fault Conditions
With the ignition ON, the IPC sends messages to the ABS module through the GWM over the HS-CAN 3. If the ABS module does not receive these messages within a certain time frame, the module sets DTCs. For information on the messages sent to the ABS module by the IPC, refer to the Network Message Chart in Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.
PPT AR ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0155:00 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information | This DTC sets when the ABS module does not receive any messages from the IPC. This can be due to a IPC failure, a circuit failure on the HS-CAN or an excessive load on the network. |
| U0155:86 | Lost Communication With Instrument Panel Cluster (IPC) Control Module: Signal Invalid | This DTC sets when the ABS module receives the odometer master value message with invalid data instead of the vehicle milage. This can be due to an IPC failure, a circuit failure or an excessive load on the network. |