AutoCodes – Chevrolet – C1226 Chevrolet

C1226 Chevrolet Code - Right Front Excessive Wheel Speed Variation

Quick Answer

As the wheel spins, the wheel speed sensor produces an AC signal. Common causes include Faulty Hub Assembly (Right Front Wheel Speed Sensor is part of hub assembly), Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted. 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: C1226 Chevrolet indicates Right Front Excessive Wheel Speed Variation.
Common causes: Common causes include Faulty Hub Assembly (Right Front Wheel Speed Sensor is part of hub assembly), Faulty Right Front Wheel Speed Sensor, Right Front Wheel Speed Sensor harness is open or shorted.
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 17,471

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 Aug 27, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1226 Chevrolet Description

As the wheel spins, the wheel speed sensor produces an AC signal. The Electronic Brake Control Module (EBCM) uses the frequency of the AC signal to calculate the wheel speed. The EBCM will set the OBDII code when the sensor is not to factory specifications.

OBDII Code C1226 Chevrolet - Right Front Excessive Wheel Speed Variation - AutoCodes.com — C1226 Chevrolet Code - Right Front Excessive Wheel Speed Variation

What does this mean?

What are the Possible Causes of the DTC C1226 Chevrolet?

Faulty Hub Assembly (Right Front Wheel Speed Sensor is part of hub assembly)
Faulty Right Front Wheel Speed Sensor
Right Front Wheel Speed Sensor harness is open or shorted
Right Front Wheel Speed Sensor circuit poor electrical connection

How to Fix the DTC C1226 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1226 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 C1226 Chevrolet code?

Need more information on how to fix the C1226 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1226 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 C1226 Chevrolet Code

1. What does the OBDII code C1226 mean on a Chevrolet?

C1226 indicates "Right Front Excessive Wheel Speed Variation," which means the ABS system has detected irregular wheel speed readings from the right front wheel.

2. What are the common symptoms of code C1226 in a Chevrolet?

Typical symptoms include an illuminated ABS warning light, traction control system malfunction, reduced braking performance, or ABS activation during normal braking.

3. What causes the C1226 code to appear in a Chevrolet?

The most common causes include a faulty wheel speed sensor, damaged wiring, issues with the tone ring, or debris interfering with sensor operation.

4. How can I diagnose the C1226 code on my Chevrolet?

Start by inspecting the right front wheel speed sensor and its wiring for damage or loose connections. Use a scan tool to monitor live wheel speed data for irregularities.

5. Can a dirty tone ring trigger the C1226 code?

Yes, dirt, debris, or rust on the tone ring can cause incorrect readings, leading to the code being triggered.

6. Is it safe to drive with the C1226 code on my Chevrolet?

While driving is possible, itâ€™s not recommended as the ABS and traction control systems may not function properly, increasing the risk of skidding during sudden stops.

7. How do I fix the C1226 code on my Chevrolet?

Repairs may include cleaning or replacing the right front wheel speed sensor, repairing damaged wiring, or replacing a faulty tone ring.

8. How much does it cost to repair a C1226 code on a Chevrolet?

Costs vary depending on the issue. Replacing a wheel speed sensor typically ranges from $100 to $300, while wiring repairs or tone ring replacements may cost more.

9. Can low tire pressure cause the C1226 code?

Low tire pressure can lead to uneven wheel rotation, potentially triggering wheel speed variation codes like C1226.

10. Do I need a professional to repair the C1226 code?

While DIY repairs are possible for simple issues like cleaning sensors, professional diagnostics may be necessary for complex wiring or ABS module problems.