C1227 Code - Left 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 (Left Rear Wheel Speed Sensor is part of hub assembly), Faulty Left Rear Wheel Speed Sensor, Left 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
- C1227 indicates Left Rear Excessive Wheel Speed Variation.
- Common causes
- Common causes include Faulty Hub Assembly (Left Rear Wheel Speed Sensor is part of hub assembly), Faulty Left Rear Wheel Speed Sensor, Left 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.
Code C1227 Description
What are the Possible Causes of the DTC C1227?
- Faulty Hub Assembly (Left Rear Wheel Speed Sensor is part of hub assembly)
- Faulty Left Rear Wheel Speed Sensor
- Left Rear Wheel Speed Sensor harness is open or shorted
- Left Rear Wheel Speed Sensor circuit poor electrical connection
How to Fix the DTC C1227?
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 C1227 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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Information for Specific Makes
- C1227 Buick — Left Rear Excessive Wheel Speed Variation
- C1227 Cadillac — Left Rear Excessive Wheel Speed Variation
- C1227 Chevrolet — Left Rear Excessive Wheel Speed Variation
- C1227 GMC — Left Rear Excessive Wheel Speed Variation
- C1227 Lexus — SA3 Solenoid Circuit
- C1227 Pontiac — Left Rear Excessive Wheel Speed Variation
- C1227 Scion — SA3 Solenoid Circuit
- C1227 Toyota — SA3 Solenoid Circuit
Frequently Asked Questions about C1227 Code
1. What are the common symptoms of OBDII code C1227 (Left Rear Excessive Wheel Speed Variation)?
The common symptoms include the anti-lock brake system (ABS) light turning on, traction control system malfunctions, and potential issues with vehicle stability during braking or cornering.
2. What are the possible causes of OBDII code C1227?
Possible causes of code C1227 can include a faulty wheel speed sensor, damaged wheel bearing, wiring issues in the ABS system, or a problem with the ABS control module.
3. How can I diagnose the underlying issue causing OBDII code C1227?
Diagnosing code C1227 typically involves using a scan tool to retrieve the specific wheel speed sensor data, inspecting the wheel speed sensor and its wiring for damage, and checking the wheel bearing for excessive play or wear.
4. Can driving with OBDII code C1227 cause further damage to my vehicle?
Continuing to drive with code C1227 may lead to compromised braking performance, reduced stability control, and potential safety hazards. It is recommended to address the issue promptly.
5. What are some DIY repair tips for fixing OBDII code C1227?
DIY repair tips can include checking and cleaning the wheel speed sensor connections, inspecting the wheel bearing for wear, ensuring proper alignment of the sensor, and clearing the code with a scan tool after making repairs.
6. Is it safe to drive my vehicle with OBDII code C1227 if I have no noticeable symptoms?
While it may be tempting to continue driving if there are no apparent symptoms, it is still recommended to address the underlying issue causing the code to prevent potential safety risks and further damage to the vehicle.
7. How much does it typically cost to repair OBDII code C1227 at a mechanic or dealership?
The cost of repairing code C1227 can vary depending on the specific cause of the issue, but it may range from around $100 to $500 or more, including parts and labor.
8. Can OBDII code C1227 be triggered by environmental factors or road conditions?
While rare, extreme environmental conditions such as severe ice or snow buildup on the wheel speed sensor can potentially trigger code C1227. However, it is more commonly caused by component failures.
9. Will clearing the OBDII code C1227 make the issue go away permanently?
Clearing the code C1227 may temporarily turn off the warning light, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause.
10. How long does it typically take to repair OBDII code C1227?
The repair time for code C1227 can vary depending on the specific cause and the complexity of the repair. In general, it may take anywhere from 1 to 3 hours for a mechanic to diagnose and fix the issue.
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