AutoCodesChevrolet – C0221 Chevrolet

C0221 Chevrolet Code - Right Front Speed Sensor or Circuit Open

Quick Answer

As the wheel spins, the wheel speed sensor produces an Alternating Current (AC) signal. Common causes include Faulty Right Front Speed Sensor, Right Front Speed Sensor harness is open or shorted, Right 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
C0221 Chevrolet indicates Right Front Speed Sensor or Circuit Open.
Common causes
Common causes include Faulty Right Front Speed Sensor, Right Front Speed Sensor harness is open or shorted, Right 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 58,799
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Mar 10, 2021
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Code C0221 Chevrolet 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 C0221 Chevrolet - Right Front Speed Sensor or Circuit Open - AutoCodes.com
C0221 Chevrolet Code - Right Front Speed Sensor or Circuit Open

What are the Possible Causes of the DTC C0221 Chevrolet?

  • Faulty Right Front Speed Sensor
  • Right Front Speed Sensor harness is open or shorted
  • Right Front Speed Sensor circuit poor electrical connection
  • Faulty Electronic Brake Control Module (EBCM)

How to Fix the DTC C0221 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0221 Chevrolet 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 C0221 Chevrolet code?

Need more information on how to fix the C0221 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0221 Chevrolet 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 C0221 Chevrolet Code

1. What does the OBDII code C0221 mean on a Chevrolet?

C0221 indicates an issue with the right front wheel speed sensor or its circuit, such as an open or faulty connection.

2. What are common symptoms of code C0221 on a Chevrolet?

Symptoms may include the ABS warning light turning on, reduced traction control functionality, or erratic ABS operation.

3. What causes the C0221 code to appear?

Possible causes include a damaged right front wheel speed sensor, corroded or damaged wiring, a loose connector, or a faulty ABS module.

4. Can I still drive my Chevrolet with a C0221 code?

Yes, but it’s not recommended. The ABS and traction control systems may not function properly, increasing the risk of loss of control in slippery conditions.

5. How do I check the right front wheel speed sensor for the C0221 code?

Inspect the sensor for physical damage, check the wiring and connectors for corrosion or breaks, and test the sensor’s resistance with a multimeter.

6. How much does it cost to fix a C0221 code on a Chevrolet?

Repair costs vary but typically range from $100 to $300, depending on whether the sensor, wiring, or ABS module is the issue.

7. Can a dirty wheel hub cause the C0221 code?

Yes, debris or dirt around the wheel hub can interfere with the sensor’s ability to detect wheel speed, triggering the code.

8. Does clearing the C0221 code fix the problem?

No, clearing the code will only temporarily remove it. The underlying issue with the sensor or circuit must be repaired to prevent the code from returning.

9. How is the C0221 code diagnosed on a Chevrolet?

A technician will use a scan tool to confirm the code, inspect the sensor and wiring, and perform tests to pinpoint the exact cause.

10. Can a bad wheel bearing cause the C0221 code?

Yes, a failing wheel bearing can cause abnormal sensor readings or damage the sensor, leading to the C0221 code.

Discuss the causes and fixes for C0221 Chevrolet OBDII Code

  • Would thisnpart cause my tranny to act up

  • Yes it's possible, because the transmission uses the information from speed sensor to calculate shift timing and other functions.

  • Nice that a definition is given, but this info (like the Chilton) doesn't help me identify WHERE the sensor is, nor does it provide a diagram of the circuit. Collusion between the manufacturer and shop mechanics? Lol

    Current issue is intermittent power when climbing hills.

  • I may be able to help, what model and year is your vehicle?

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