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.
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 | Sets when the ABS module detects any of the messages from the PCM is missing. This can be due to a PCM failure, a circuit failure on the HS-CAN or an excessive load on the network. |