Normal Operation and Fault Conditions
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With the ignition ON, the PCM sends messages to the ABS module through the GWM over the HS-CAN 1. 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 Trigger Conditions |
|---|---|---|
| U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | This DTC when the ABS module does not receive any messages from the PCM. This can be due to a PCM failure, a circuit failure on the HSCAN or an excessive load on the network. |