AutoCodes – Cadillac – C0455 Cadillac

C0455 Cadillac 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 Cadillac 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 6,329

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

What does this mean?

What are the Possible Causes of the DTC C0455 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac Code

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

The common symptoms include the ABS warning light coming on, traction control issues, and potential difficulty steering.

2. What typically causes the OBDII code C0455 in a Cadillac?

The code C0455 usually indicates a fault with the front steering position sensor circuit, which can be caused by a faulty sensor, damaged wiring, or poor connections.

3. How can I diagnose the Front Steering Position Sensor Circuit issue in my Cadillac?

Diagnosing the issue involves using a scan tool to read the OBDII code C0455, checking the sensor and its wiring for damage, and testing the sensor's functionality.

4. Can I still drive my Cadillac with the OBDII code C0455 present?

It is not recommended to drive your Cadillac with the C0455 code present, as it can affect the traction control and ABS systems, potentially compromising the vehicle's safety.

5. How can I repair the Front Steering Position Sensor Circuit issue in my Cadillac?

Repairing the issue may involve replacing the front steering position sensor, repairing or replacing damaged wiring, and ensuring all connections are secure.

6. Is it possible to reset the OBDII code C0455 in a Cadillac without fixing the underlying issue?

Resetting the code without addressing the underlying problem will only temporarily clear the warning light, and the issue will likely reoccur.

7. Can extreme weather conditions cause the OBDII code C0455 in a Cadillac?

Extreme weather conditions can potentially affect the front steering position sensor and its circuit, leading to the triggering of the C0455 code.

8. How much does it typically cost to repair the Front Steering Position Sensor Circuit issue in a Cadillac?

The cost of repair can vary depending on the extent of the issue and whether you choose to do the repair yourself or take it to a professional mechanic. Costs may include parts and labor.

9. Will the OBDII code C0455 in a Cadillac affect the vehicle's performance?

Yes, the C0455 code can affect the performance of the vehicle by impacting the traction control and ABS systems, potentially leading to handling issues.

10. How can I prevent the OBDII code C0455 in a Cadillac from reoccurring?

Regularly inspecting and maintaining the front steering position sensor, checking for any signs of wear or damage, and addressing any issues promptly can help prevent the code from reoccurring.