Normal Operation and Fault Conditions
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With the ignition ON, the GSM 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 DTCs. For information on the messages sent to the ABS module by the GSM, refer to the Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.
PPT AV ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0103:00 | Lost Communication With Gear Shift Control Module A: No Sub Type Information | Sets in continuous memory and on-demand when any of the GSM messages are missing. This can be due to a GSM failure, a circuit failure on the HS-CAN2 or an excessive load on the network. |
| U0404:00 | Invalid Data Received from Gear Shift Control Module A: No Sub Type Information | This DTC sets if the GSM messages received contain an invalid value for longer than the specified time. |