AutoCodes – Generic – C0455

C0455 Code - Front Steering Position Sensor Circuit

Quick Answer

The Electronic Brake Control Module (EBCM) receives several inputs from the steering wheel position sensor. Common causes include Faulty Front Steering Position Sensor, Front Steering Position Sensor harness is open or shorted, Front Steering Position Sensor 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: C0455 indicates Front Steering Position Sensor Circuit.
Common causes: Common causes include Faulty Front Steering Position Sensor, Front Steering Position Sensor harness is open or shorted, Front Steering Position Sensor 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 29,531

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 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0455 Description

The Electronic Brake Control Module (EBCM) receives several inputs from the steering wheel position sensor. Three digital square wave signal inputs are wired directly to the EBCM harness connector, however, only signals A and B are used or monitored. The failure of the index pulse signal does not effect vehicle Stability Enhancement System (VSES) function. The EBCM also receives an analog steering wheel position input on the steering wheel position sensor signal 1 circuit. Ignition voltage is supplied to the digital portion of the steering wheel position sensor. The analog portion of the steering wheel position sensor is supplied a 5-volt reference from the EBCM.

OBDII Code C0455 - Front Steering Position Sensor Circuit - AutoCodes.com — C0455 Code - Front Steering Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C0455?

Faulty Front Steering Position Sensor
Front Steering Position Sensor harness is open or shorted
Front Steering Position Sensor circuit poor electrical connection

How to Fix the DTC C0455?

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 C0455 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.

Need more information about the C0455 code?

Need more information on how to fix the C0455 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0455 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0455 Buick — Front Steering Position Sensor Circuit
C0455 Cadillac — Front Steering Position Sensor Circuit
C0455 Chevrolet — Front Steering Position Sensor Circuit
C0455 GMC — Front Steering Position Sensor Circuit

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.

Frequently Asked Questions about C0455 Code

1. What are the common symptoms of OBDII code C0455 (Front Steering Position Sensor Circuit)?

- Common symptoms include the traction control system engaging unexpectedly, stability control system malfunctions, and the ABS light illuminating on the dashboard.

2. What are the possible causes of OBDII code C0455?

- Possible causes include a faulty front steering position sensor, damaged wiring or connectors in the sensor circuit, or issues with the steering angle sensor.

3. How can I diagnose the front steering position sensor circuit issue related to code C0455?

- Diagnose by performing a visual inspection of the sensor and its wiring, checking for loose or damaged connections, and using a scan tool to read the sensor's data.

4. Can I drive my vehicle with OBDII code C0455 active?

- It is not recommended to drive with this code active, as it can affect the proper functioning of the vehicle's stability control and ABS systems.

5. How can I repair OBDII code C0455?

- Repair options include replacing the front steering position sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code using a diagnostic tool.

6. Are there any DIY tips for fixing OBDII code C0455?

- DIY tips include carefully inspecting the sensor and its connections for visible damage, ensuring proper installation of a new sensor if needed, and clearing the code to see if the issue persists.

7. Can a faulty front steering position sensor cause other problems in the vehicle?

- Yes, a faulty sensor can lead to issues with the vehicle's traction control, stability control, and ABS systems, affecting overall safety and performance.

8. How long does it typically take to repair OBDII code C0455?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the front steering position sensor circuit problem.

9. Will OBDII code C0455 cause my vehicle to fail an emissions test?

- While the code itself may not directly impact emissions, it is important to resolve the underlying issue to ensure the vehicle's safety systems are functioning properly.

10. Is it possible to prevent OBDII code C0455 from occurring in the future?

- Regular maintenance checks, prompt addressing of any sensor or wiring issues, and careful driving to avoid impacts or accidents can help prevent the recurrence of this code.