Pinpoint Test AU: PSCM (Power Steering Control Module) DTC (Diagnostic Trouble Code) U0429:00
WARNING: This page is about a different car, the 2021 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Normal Operation and Fault Conditions
REFER to: Power Steering - System Operation and Component Description .
Description
- The PSCM monitors the CAN messages when the ignition has been on for more than 5 seconds, the voltage to the PSCM is greater than 9 volts and there are no Diagnostic Trouble Codes (DTCs) present inhibiting PSCM operation.
- The SCCM uses input from several sensors and components to gather vehicle data, then sends this data to the PSCM. If the data is corrupted or invalid, the SCCM sends out "invalid", "fault" or "unknown" instead of the actual sensor data. For a list of the messages sent to the PSCM from the SCCM, refer to the Network Message List in Network Message Chart .
Pinpoint Test Applicability
- This test applies to PSCM DTC U0429 Invalid Data Received from the Steering Column Control Module only. It does not apply to any other module except the PSCM.
DTC Diagnostic Strategy
- If the module DTC list results in a large number of Diagnostic Trouble Codes (DTCs), diagnose all module hard faults first (C102D, C1B00, C200B, C200C, C200D, U2011 and U3000) before diagnosing any network faults (lost communication or invalid data). If voltage concern Diagnostic Trouble Codes (DTCs) are present, diagnose those after any module hard faults and before any network faults. Diagnose all current and active Diagnostic Trouble Codes (DTCs) before diagnosing any historic Diagnostic Trouble Codes (DTCs).
Pinpoint Test Purpose
- To verify the presence of DTC U0429 and identify the correct Service Information for diagnosing the DTC concern.
Diagnostic Aids
- DTC U0429:00 indicates a concern with the operating mode message, the torque steer compensation message or the brake pull reduction message sent from the SCCM.
- The module reporting this DTC is not the problem module. Do not install a new PSCM as part of the repair for PSCM DTC U0429:00.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| PSCM U0429:00 | Invalid Data Received From Steering Column Control Module: No Sub Type Information | This DTC sets if the PSCM receives an invalid or unknown message from the SCCM instead of the actual steering angle data. |
Possible Sources
- SCCM related sensors and components
- SCCM
Pinpoint Tests AU: PSCM DTC U0429 Invalid Data Received From Steering Column Control Module