C0545

DTC C0545

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 C0545
- Steering Wheel Torque Sensor Malfunction

Circuit/System Description

The power steering control module continuously monitors the digital torque sensor's torque and index current signals. As the steering wheel is turned and torsional twist is applied to the steering shaft, the steering input and output shafts are monitored via the torque signal circuit and then processed by the power steering control module to calculate the steering torque.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The power steering control module detects a short to ground, short to voltage, or an open/high resistance on any of the torque sensor circuits.

Action Taken When the DTC Sets

* DTC C0545 is stored in memory.
* The driver information center displays the SERVICE POWER STEERING warning message.
* No steering assist.

Conditions for Clearing the DTC

* A current DTC will clear on the next malfunction-free ignition cycle.
* A history DTC will clear after 40 consecutive malfunction-free ignition cycles.

Reference Information
Schematic Reference

Power Steering Schematics Electrical Diagrams
Connector End View Reference

Component Connector End Views Sunshade - Left (D6I)
Description and Operation

Power Steering System Description and Operation (Hydraulic Power Steering) Power Steering System (Hydraulic Power Steering)Power Steering System Description and Operation (Electronic Power Steering) Power Steering System (Electronic Power Steering)
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 Control Module References for scan tool information

Circuit/System Verification

Verify that DTC C0545 is not set.

If the DTC is set, replace the steering gear containing the torque sensor.

Repair Instructions

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

* Steering Gear Replacement Steering Gear Replacement
* Power Steering Assist Motor Replacement Service and Repair for power steering control module replacement
* Control Module References Control Module References for power steering control module replacement, programming and setup