AutoCodes – Cadillac – C0055 Cadillac

C0055 Cadillac Code - Rear Wheel Speed Sensor Circuit

Quick Answer

The Electronic Control Module (ECM) convert the data from the chicle speed sensor to a 128K pulse/mile signal. Common causes include Faulty Rear Wheel Speed Sensor, Rear Wheel Speed Sensor harness is open or shorted, Rear Wheel Speed 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: C0055 Cadillac indicates Rear Wheel Speed Sensor Circuit.
Common causes: Common causes include Faulty Rear Wheel Speed Sensor, Rear Wheel Speed Sensor harness is open or shorted, Rear Wheel Speed 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 1,257

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 May 02, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0055 Cadillac Description

The Electronic Control Module (ECM) convert the data from the chicle speed sensor to a 128K pulse/mile signal. The Electronic Brake Control Module (EBCM) uses the vehicle speed signal from the ECM in order to calculate the rear wheel speed.

OBDII Code C0055 Cadillac - Rear Wheel Speed Sensor Circuit - AutoCodes.com — C0055 Cadillac Code - Rear Wheel Speed Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C0055 Cadillac?

Faulty Rear Wheel Speed Sensor
Rear Wheel Speed Sensor harness is open or shorted
Rear Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C0055 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 C0055 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.

Need more information about the C0055 Cadillac code?

Need more information on how to fix the C0055 Cadillac code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0055 Cadillac code diagnosed by a professional: Find a repair shop in your area

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 C0055 Cadillac Code

1. What are the common symptoms of OBDII code C0055 on a Cadillac related to the Rear Wheel Speed Sensor Circuit?

- Common symptoms include ABS light illuminated on the dashboard, traction control light on, and potential issues with the vehicle's stability control system.

2. What are the possible causes of OBDII code C0055 on a Cadillac?

- Potential causes include a faulty rear wheel speed sensor, damaged wiring or connectors in the circuit, or issues with the ABS module.

3. How can I diagnose the OBDII code C0055 on my Cadillac?

- Diagnosing this code typically involves using a professional OBDII scanner to read and interpret the ABS system's error codes, inspecting the rear wheel speed sensor and its wiring for damage, and testing the sensor's functionality.

4. Is it safe to drive my Cadillac with the OBDII code C0055 related to the Rear Wheel Speed Sensor Circuit?

- It is not recommended to drive the vehicle with this code present, as it can affect the ABS and stability control systems, potentially compromising safe driving conditions.

5. Can I repair the OBDII code C0055 on my Cadillac myself?

- While some enthusiasts may be able to tackle the repair themselves, it is recommended to seek professional help to accurately diagnose and repair the issue related to the Rear Wheel Speed Sensor Circuit.

6. How much does it cost to repair OBDII code C0055 on a Cadillac?

- The cost of repair can vary depending on the specific cause of the issue, but expenses may include the cost of a new rear wheel speed sensor, wiring repairs, or potential ABS module replacement.

7. Can a faulty rear wheel speed sensor cause other problems in my Cadillac?

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

8. Are there any preventive maintenance tips to avoid OBDII code C0055 on a Cadillac?

- Regularly inspecting the condition of the wheel speed sensors, ensuring proper wiring connections, and promptly addressing any ABS system warning lights can help prevent issues related to this code.

9. Will resetting the OBDII code C0055 on my Cadillac make the problem go away?

- Resetting the code may temporarily turn off the warning lights, but it will not fix the underlying issue causing the Rear Wheel Speed Sensor Circuit problem.

10. How long does it typically take to repair OBDII code C0055 on a Cadillac?

- The repair time can vary based on the exact cause of the issue and the complexity of the repair, but it is advisable to consult a professional technician for an accurate estimate of the repair duration.