Normal Operation and Fault Conditions
With the ignition ON, the PCM sends messages to the ABS module through the GWM over the HS-CAN. If the ABS module does not receive these messages within a certain time frame (usually less than 1 second), the ABS module sets DTCs. For information on the messages sent to the ABS module by the PCM, refer to the Network Message Chart in Description and Operation of Anti-Lock Brake System (ABS) and Stability Control article.
PPT AI ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Setting Conditions |
|---|---|---|
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | This DTC sets if the ABS module does not receive any messages from the PCM. |
| U0401:00 | Invalid Data Received From ECM/PCM "A": No Sub Type Information | This DTC sets in continuous memory if the information in one or more messages from the PCM (sent through the GWM) contains invalid or out of range information. |