Normal Operation and Fault Conditions

With the ignition ON, the HVAC module sends messages to the ABS module through the GWM over the MS-CAN. 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 HVAC module, refer to the Network Message Chart in Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.