Steering Angle Sensor Calibration Fault
There’s a problem with the steering angle sensor calibration.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The steering angle sensor measures how much you turn the steering wheel. If it's not calibrated right, the system won’t know where the wheels are pointing, which can affect traction control and stability features.
What the computer is actually seeing
The vehicle's computer checks if the steering angle sensor data matches the expected range. If it reads incorrectly after calibration attempts, it triggers code C0579.
What a healthy reading looks like
Expected steering angle during calibration is around 0-5 volts when centered; actual movement should yield corresponding voltage changes proportional to wheel turn.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Check the wiring and connectors of the steering angle sensor for damage or corrosion. If faulty, repair or replace as needed, then retest.
- 22. Ensure the steering angle sensor is correctly installed and calibrated. If not, perform calibration after following manufacturer-specific procedures.
- 33. Verify the sensor's output. Use a scan tool to monitor the voltage output while turning the steering wheel. If it doesn't change correctly, replace the sensor.
- 44. If the above steps are clear, check for related trouble codes. If other codes exist, address those first, as they may affect the steering sensor.
Common causes
- Faulty steering angle sensor
- Wiring issue to the sensor
- Calibration not completed after sensor replacement
- Faulty steering column module
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity; you can drive, but be cautious as traction and stability features may not function properly.
Will this code come back after clearing?
If the problem isn’t fixed, yes, the code will likely return after driving.
Why does this code appear with other codes?
C0579 often pairs with codes related to the ABS or traction control systems, as they rely on the steering angle for functionality.
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