C0227 moderate

Steering Angle Sensor Return to Center Fault

The C0227 code means the vehicle's onboard diagnostic system has detected: Steering Angle Sensor Return to Center Fault. This is a moderate severity code.

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Keep driving?: Yes, but fix soon
DIY difficulty: moderate
Estimated cost: $0 - $500 (parts and labor)

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Common Symptoms

Stability control warning light on
Traction control disabled
Code appears after completing a turn
ESC may not function properly
Intermittent warning light

Probable Causes (Ranked by Likelihood)

Steering angle sensor not properly returning to zero after turn Very High
Worn steering gear or linkage with excessive play High
Steering column binding or tight spots Moderate
Steering angle sensor calibration drift Moderate
Power steering system affecting wheel return Low

Step-by-Step Diagnostic Procedure

Monitor steering angle sensor data during and after turning
Verify the steering wheel returns to center naturally after a turn
Check for binding in the steering column or rack
Inspect tie rods and steering linkage for worn joints
Perform a steering angle sensor recalibration

Frequently Asked Questions

What is a return to center fault?

After completing a turn, the steering wheel should naturally return toward the center position. If the steering angle sensor detects that the wheel is not returning properly, it sets this code because it cannot track steering position accurately.

Can a tight steering rack cause this code?

Yes. A steering rack that binds or does not allow smooth return to center can prevent the steering angle sensor from reading the expected return-to-center pattern, triggering this fault.

Does wheel alignment affect return to center?

Yes. Incorrect caster angle is the primary alignment parameter that affects steering return to center. Insufficient caster can cause sluggish return to center, which may trigger this code.