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 00
- Steering Wheel Torque Sensor Malfunction.

DTC C0545 3A
- Steering Wheel Torque Sensor Incorrect Component Installed.

Circuit/System Description

The power steering control module continuously monitors the digital torque sensor's torque. 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

Ignition 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.

* No steering assist.

Conditions for Clearing the DTC

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

Description and Operation

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

Circuit/System Verification

1. Ignition ON.

2. Verify the scan tool Torque Sensor parameter changes when turning the steering wheel.

• If the parameter does not change
Refer to Circuit/System Testing

• If the parameter changes

3. All OK.

Circuit/System Testing

1. Ignition ON.

2. Verify that DTC C0545 is not set.

• If the DTC is set
Replace the steering gear.

• If the DTC is not set

3. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

* Steering Gear Replacement (LUK, MHH) Steering Gear Replacement (LCV, MH8) Steering Gear Replacement (MH8)Steering Gear Replacement (LTG, M7W)

* Control Module References Control Module References for Power Steering Control Module replacement, programming and setup.