Normal Operation and Fault Conditions

With the ignition ON, the GWM sends messages to the ABS module over the HS-CAN 2. If the ABS module does not receive these messages within a certain time frame (usually less than 1 second), the ABS module sets DTCs. This can be due to a GWM failure, a circuit failure on the HS-CAN or an excessive load on the network. For information on the messages sent to the ABS module by the GWM, refer to the Network Message Chart in Description and Operation of the Anti-Lock Brake System (ABS) and Stability Control article.