AutoCodes – Generic – C0229

C0229 Code - Simultaneous Dropout Of Front Wheel Speed Sensors

Quick Answer

As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. Common causes include Faulty Front Speed Sensor, Front Speed Sensor harness is open or shorted, Front 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: C0229 indicates Simultaneous Dropout Of Front Wheel Speed Sensors.
Common causes: Common causes include Faulty Front Speed Sensor, Front Speed Sensor harness is open or shorted, Front 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 3,013

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 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0229 Description

As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. The Electronic Brake Control Module (EBCM) uses the frequency of the AC signal to calculate the wheel speed.

OBDII Code C0229 - Simultaneous Dropout Of Front Wheel Speed Sensors - AutoCodes.com — C0229 Code - Simultaneous Dropout Of Front Wheel Speed Sensors

What does this mean?

What are the Possible Causes of the DTC C0229?

Faulty Front Speed Sensor
Front Speed Sensor harness is open or shorted
Front Speed Sensor circuit poor electrical connection
Faulty EBCM

How to Fix the DTC C0229?

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 C0229 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 C0229 code?

Need more information on how to fix the C0229 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0229 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

C0229 Buick — Simultaneous Dropout Of Front Wheel Speed Sensors
C0229 Cadillac — Simultaneous Dropout Of Front Wheel Speed Sensors
C0229 Chevrolet — Simultaneous Dropout Of Front Wheel Speed Sensors
C0229 GMC — Simultaneous Dropout Of Front Wheel Speed Sensors

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 C0229 Code

1. What are the common symptoms of OBDII code C0229?

- Common symptoms include the ABS warning light illuminating on the dashboard, ABS system malfunction, and potential loss of traction control.

2. What does OBDII code C0229 indicate?

- OBDII code C0229 indicates a simultaneous dropout of front wheel speed sensors in the ABS system.

3. What are the possible causes of OBDII code C0229?

- Possible causes include damaged or malfunctioning front wheel speed sensors, wiring issues, sensor connection problems, or a faulty ABS control module.

4. How can I diagnose OBDII code C0229?

- Diagnosing OBDII code C0229 involves using a scan tool to retrieve the specific fault codes, inspecting the front wheel speed sensors and wiring for damage, and testing sensor resistance and signal output.

5. How can I repair OBDII code C0229?

- Repairing OBDII code C0229 may involve replacing the front wheel speed sensors, repairing damaged wiring or connections, resetting the ABS system, or replacing the ABS control module if necessary.

6. Can I drive my vehicle with OBDII code C0229?

- It is not recommended to drive your vehicle with OBDII code C0229 as it may affect the proper functioning of the ABS system and traction control, compromising safety.

7. How important is it to fix OBDII code C0229?

- It is important to fix OBDII code C0229 promptly to ensure the ABS system operates correctly, maintain vehicle safety, and prevent further damage to the braking system.

8. Are there any DIY tips for troubleshooting OBDII code C0229?

- DIY troubleshooting tips include checking the wheel speed sensor connections, inspecting for visible damage, and ensuring the sensors are clean and free of debris.

9. Can weather conditions affect OBDII code C0229?

- Extreme weather conditions, such as heavy rain or snow, can potentially impact the performance of the front wheel speed sensors and trigger OBDII code C0229.

10. Is it necessary to clear the OBDII code C0229 after repairing the issue?

- Yes, it is recommended to clear the OBDII code C0229 after repairing the underlying issue to reset the ABS system and ensure the warning light does not reappear.