Normal Operation and Fault Conditions

With the ignition ON, the RCM 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 a DTC. For information on the messages sent to the ABS module by the RCM, refer to the Description and Operation in  ANTI-LOCK BRAKE SYSTEM (ABS) AND STABILITY CONTROL  .