AutoCodes – Generic – C0545:4B

C0545:4B Code - Steering Wheel Torque Sensor Calibration Not Learned

Quick Answer

The Power Steering Control Module continuously monitors the Steering Wheel Torque Sensor. Common causes include Faulty Steering Gear, Steering Gear harness is open or shorted, Steering Gear circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C0545:4B indicates Steering Wheel Torque Sensor Calibration Not Learned.
Common causes: Common causes include Faulty Steering Gear, Steering Gear harness is open or shorted, Steering Gear circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 555

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 14, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code C0545:4B Description

The Power Steering Control Module continuously monitors the Steering Wheel Torque Sensor. As the steering wheel is turned and torsional twist is applied to the steering shaft the signal is processed by the Power Steering Control Module to calculate the steering torque. The Diagnostic Trouble Code (DTC) will be set when the Power Steering Control Module has not been programmed.

OBDII Code C0545:4B - Steering Wheel Torque Sensor Calibration Not Learned - AutoCodes.com — C0545:4B Code - Steering Wheel Torque Sensor Calibration Not Learned

What does this mean?

What are the Possible Causes of the DTC C0545:4B?

Faulty Steering Gear
Steering Gear harness is open or shorted
Steering Gear circuit poor electrical connection
Faulty Power Steering Control Module

How to Fix the DTC C0545:4B?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0545:4B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.