Workshop Manuals Factory service & repair Vauxhall
Vauxhall Astra J17 · Steering
17 · Steering & suspension

DTC C0545

Make
Vauxhall
Model
Astra J
Section
Diagnostic Information and Procedures › Miscellaneous › DTC C0545
SteeringDTC C0545

DTC C0545

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 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


Connector End View Reference

Component Connector End Views


Description and Operation

Power Steering System Description and Operation


Electrical Information Reference


Scan Tool Reference

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 after completing the diagnostic procedure.

•  Power Steering Assist Motor Replacement for power steering control module replacement
•  Control Module References for power steering control module replacement, programming and setup

Parts & tools for this job For Vauxhall Astra

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