AutoCodes – Pontiac – C1228 Pontiac

C1228 Pontiac Code - Right Rear 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 Rear Wheel Speed Sensor is part of hub assembly), Faulty Right Rear Wheel Speed Sensor, Right Rear 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
C1228 Pontiac indicates Right Rear Excessive Wheel Speed Variation.
Common causes
Common causes include Faulty Hub Assembly (Right Rear Wheel Speed Sensor is part of hub assembly), Faulty Right Rear Wheel Speed Sensor, Right Rear 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 1,297
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 27, 2020
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Code C1228 Pontiac 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 C1228 Pontiac - Right Rear Excessive Wheel Speed Variation - AutoCodes.com
C1228 Pontiac Code - Right Rear Excessive Wheel Speed Variation

What are the Possible Causes of the DTC C1228 Pontiac?

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

How to Fix the DTC C1228 Pontiac?

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 C1228 Pontiac 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 C1228 Pontiac Code

1. What are the common symptoms of OBDII code C1228 in a Pontiac related to right rear excessive wheel speed variation?

The common symptoms include traction control and ABS warning lights illuminated on the dashboard, potential loss of traction control functionality, and possible uneven braking performance.

2. What are the possible causes of OBDII code C1228 in a Pontiac indicating right rear excessive wheel speed variation?

Possible causes may include a faulty wheel speed sensor at the right rear wheel, damaged wiring or connectors related to the sensor, or issues with the ABS control module.

3. How can I diagnose the OBDII code C1228 in my Pontiac related to right rear excessive wheel speed variation?

Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the right rear wheel speed sensor and its connections, and testing the sensor's functionality using a multimeter.

4. Can a DIY enthusiast repair OBDII code C1228 in a Pontiac associated with right rear excessive wheel speed variation?

Repairing this issue may be possible for DIY enthusiasts with experience in automotive repairs. Replacing the faulty wheel speed sensor, repairing damaged wiring, or addressing issues with the ABS control module may solve the problem.

5. Is it safe to continue driving my Pontiac with OBDII code C1228 indicating right rear excessive wheel speed variation?

It is not recommended to drive the vehicle extensively with this issue, as it can affect traction control and braking performance. Prompt diagnosis and repair are advised to ensure safe operation.

6. Are there any temporary solutions or quick fixes for OBDII code C1228 in a Pontiac related to right rear excessive wheel speed variation?

There are typically no temporary solutions or quick fixes for this issue. It is best to address the root cause of the problem through proper diagnosis and repair.

7. How much does it typically cost to repair OBDII code C1228 in a Pontiac involving right rear excessive wheel speed variation?

The cost of repair can vary depending on the specific cause of the issue. Replacing a wheel speed sensor or addressing wiring issues may range from $100 to $300, while repairs involving the ABS control module could be more expensive.

8. Can extreme weather conditions or road debris trigger OBDII code C1228 in a Pontiac indicating right rear excessive wheel speed variation?

Extreme weather conditions or road debris may potentially affect the wheel speed sensor's performance, leading to the triggering of this fault code. Regular maintenance and inspection can help prevent such issues.

9. Will resetting the OBDII code C1228 in a Pontiac related to right rear excessive wheel speed variation make the problem disappear?

Resetting the code may temporarily turn off the warning lights, but it will not fix the underlying issue causing the excessive wheel speed variation. Proper diagnosis and repair are necessary for a permanent solution.

10. Is it necessary to visit a dealership or mechanic for OBDII code C1228 in a Pontiac indicating right rear excessive wheel speed variation?

While visiting a dealership or mechanic is recommended for accurate diagnosis and repair, experienced DIY enthusiasts with the right tools and knowledge may be able to address this issue themselves.

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