Steering Angle Sensor Circuit Malfunction
What does C0220 mean?
The C0220 code means the vehicle's onboard diagnostic system has detected: Steering Angle Sensor Circuit Malfunction. This is a critical severity code.
Common Symptoms
- Stability control light on
- Traction control light on
- Power steering warning light on some vehicles
- Lane departure warning disabled
- Adaptive cruise control disabled
Probable Causes (Ranked by Likelihood)
- Failed steering angle sensor Very High
- Sensor requires recalibration after alignment or steering work High
- Clock spring or spiral cable damage Moderate
- Corroded connector in the steering column Moderate
- CAN bus communication error between sensor and module Low
Step-by-Step Diagnostic Procedure
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Scan for DTCs and check steering angle sensor live data while turning the wheel
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Verify if wheel alignment or steering component work was recently performed
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Perform a steering angle sensor calibration using a scan tool
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Check the sensor connector under the steering column for corrosion
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Turn the steering wheel lock to lock and verify sensor tracks correctly in live data
Frequently Asked Questions
Do I need to recalibrate the steering angle sensor after an alignment?
Yes, on most modern vehicles the steering angle sensor must be recalibrated after a wheel alignment, steering rack replacement, or any steering component work. This is often overlooked by shops.
Where is the steering angle sensor located?
The steering angle sensor is located in the steering column, usually behind the steering wheel or integrated into the clock spring assembly. It measures the position and rate of steering wheel rotation.
Can a steering angle sensor cause multiple warning lights?
Yes. Many modern safety systems rely on the steering angle sensor, including stability control, traction control, lane departure warning, and adaptive cruise control. A faulty sensor can disable all of these systems.