Power Steering

DTC C0561

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview)provide an overview of each diagnostic category.

DTC Descriptor
DTC C0561 71
- System Disabled Information Stored Invalid Serial Data Received

Circuit/System Description

The power steering control module (PSCM) monitors validity faults from the steering angle sensor and vehicle stability control module (VSCM) via serial data.

Conditions for Running the DTC

Engine running.

Conditions for Setting the DTC

The PSCM does not receive vehicle speed message or receives an invalid vehicle speed message from the VSCM or steering angle sensor.

Action Taken When the DTC Sets

* Active Steering is disabled.
* SERVICE STEERING SYS and/or STABILITY SECURE MODE is displayed on the DIC.

Conditions for Clearing the DTC

* A current DTC will clear on the next malfunction free ignition cycle.
* A history DTC will clear after 100 consecutive malfunction free ignition cycles.

Reference Information
Schematic Reference

Power Steering Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Active Front Steering Description and Operation (Active Front Steering Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)

Scan Tool Reference

Control Module References (Programming and Relearning)for scan tool information

Circuit/System Verification

Important: This DTC will set as a result of fault conditions caused by other modules or components on the serial data circuit.


Verify that no DTCs are set in the TCM, VSCM, or EBCM. Also review wheel speed sensor and steering angle sensor parameters to verify correct readings.

If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (Diagnostic Trouble Code Descriptions).