Normal Operation and Fault Conditions
With the ignition ON, the PSCM sends messages to the ABS module over the HS-CAN2. If the ABS module does not receive these messages within a certain time frame, the ABS module sets a DTC. For information on the messages sent to the ABS module by the PSCM, refer to the Network Message Chart in Description and Operation in the Anti-Lock Brake System (ABS) and Stability Control article.
PPT AE ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0131:82 | Lost Communication With Power Steering Control Module: Alive/Sequence Counter Incorrect/Not Updated | This DTC sets when the ABS module receives the steering pinion message from the PSCM and the pinion CNT signal value is unchanged. |
| U0131:83 | Lost Communication With Power Steering Control Module: Value of Signal Protection Calculation Incorrect | This DTC sets when the ABS module receives the steering pinion message from the PSCM and the pinion CRC signal value is unchanged. |
| U0131:87 | Lost Communication With Power Steering Control Module: Missing Message | This DTC sets when the ABS module does not receive the steering angle message from the PSCM. |