For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• | Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• | 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

#### Connector End View Reference

Component Connector End Views

#### Description and Operation

Power Steering System Description and Operation

#### Electrical Information Reference

• | Circuit Testing

• | Connector Repairs

• | Testing for Intermittent Conditions and Poor Connections

• | Wiring Repairs

#### Scan Tool Reference

Control Module References for scan tool information

### Circuit/System Verification

1. Verify DTC C0475 is not set.

⇒ | If DTC is set, replace the steering column.

### Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Steering Column Replacement