Normal Operation and Fault Conditions
WARNING: This page is about a different car, the 2019 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
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 Anti-Lock Brake System (ABS) and Stability Control Anti-Lock Brake System (ABS) and Stability Control.
PPT AE ABS MODULE DTC FAULT TRIGGER CONDITIONS
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0131:00 | Lost Communication With Power Steering Control Module: No Sub Type Information | This DTC sets if the ABS module does not receive any of the expected messages from the PSCM. |
| U0420:41 | Invalid Data Received From Power Steering Control Module: General Checksum Failure | This DTC sets if the information in the steering wheel angle checksum is invalid. |
| U0420:82 | Invalid Data Received From Power Steering Control Module: Alive/Sequence Counter Incorrect/Not Updated | This DTC sets if the information in the steering wheel data message from the PSCM does not change for a predetermined amount of time. This DTC clears automatically in the same ignition cycle it was set once valid data has been received. |
| U0420:86 | Invalid Data Received From Power Steering Control Module: Signal Invalid | This DTC sets if the information in the steering wheel angle sensor message contains invalid or out of range data. |