AutoCodes – Buick – C0455 Buick

C0455 Buick 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 Buick 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 1,776

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

What does this mean?

What are the Possible Causes of the DTC C0455 Buick?

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 Buick?

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 Buick 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.

Frequently Asked Questions about C0455 Buick Code

1. What are the common symptoms of OBDII code C0455 for a Buick related to the Front Steering Position Sensor Circuit?

The common symptoms include the ABS light being illuminated on the dashboard, issues with the stability control system, and potential steering position sensor malfunctions.

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

The code C0455 in a Buick can be triggered by a faulty front steering position sensor, damaged wiring or connectors in the sensor circuit, or issues with the steering angle sensor calibration.

3. How can I diagnose the Front Steering Position Sensor Circuit issue causing OBDII code C0455 in my Buick?

Diagnosing the issue involves using a scan tool to read the code, checking the wiring and connectors for damage, testing the front steering position sensor, and calibrating the steering angle sensor if necessary.

4. Can I continue driving my Buick with OBDII code C0455 related to the Front Steering Position Sensor Circuit?

It is not recommended to drive the vehicle with this code present, as it can affect the stability control system and potentially compromise steering functionality. Prompt diagnosis and repair are advised.

5. Is it possible to repair OBDII code C0455 in my Buick by myself?

While it is possible to diagnose some aspects of the issue yourself, repairing the Front Steering Position Sensor Circuit may require specialized tools and expertise. Professional assistance is recommended for proper resolution.

6. Are there any simple troubleshooting steps I can take for OBDII code C0455 in my Buick before seeking professional help?

You can start by checking the wiring and connectors for visible damage, ensuring they are securely connected. However, if the issue persists, it is best to consult a mechanic for a thorough diagnosis.

7. How important is it to address OBDII code C0455 for the Front Steering Position Sensor Circuit in a Buick?

Addressing this code promptly is crucial to ensure the proper functioning of the stability control system and maintain safe driving conditions. Ignoring the issue can lead to potential safety hazards.

8. Can extreme weather conditions or rough driving terrain trigger OBDII code C0455 in a Buick?

Extreme weather conditions or rough driving terrain can potentially contribute to sensor malfunctions or damage, which may trigger the Front Steering Position Sensor Circuit code C0455. Regular maintenance can help prevent such issues.

9. What is the typical cost to repair OBDII code C0455 related to the Front Steering Position Sensor Circuit in a Buick?

The cost of repair can vary depending on the extent of the issue, parts needed, and labor costs. It is advisable to consult a mechanic for an accurate estimate based on the specific circumstances.

10. How long does it usually take to repair OBDII code C0455 for the Front Steering Position Sensor Circuit in a Buick?

The repair time can vary based on the complexity of the issue and the availability of parts. In general, it may take a few hours to a day for a mechanic to diagnose and repair the Front Steering Position Sensor Circuit problem triggering code C0455 in a Buick.