C0475

DTC C0475

Diagnostic Instructions

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

DTC Descriptor
DTC C0475 00
- Electric Steering Motor Circuit

Circuit/System Description

The power steering control module (PSCM) continuously monitors the voltage and current levels being commanded to the power steering motor. The PSCM compares the commanded and feedback current levels to detect malfunctions in the power steering motor.

Conditions for Running the DTC

* Engine running.
* Power steering system voltage is 9-16 volts.
* Steering input is present.

Conditions for Setting the DTC

A short to ground, short to voltage, or an open/high resistance in the power steering motor, or the circuits to the motor.

Action Taken When the DTC Sets

* The driver information center (DIC) displays the POWER STEERING warning message.
* No steering assist is provided.

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 End Views By Name)
Description and Operation

Power Steering System Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

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

Circuit/System Verification

1. Verify DTC C0475 is not set.
Note: If the customer returns after replacing the motor with the same DTC. Replace the steering column.

• If DTC is set, replace the power steering motor. If the DTC resets after replacing the motor, replace the steering column.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Steering Column Replacement (Steering Column Replacement)
* Power Steering Assist Motor Replacement (Service and Repair)