C0440: Steering Wheel Position Sensor Circuit
Standardized SAE J2012 code · C04xx codes
Safety-critical system. Faults in airbags, brakes, steering or high-voltage components can put people at risk. Follow the manufacturer's service information and safety procedures, or have the vehicle checked by a qualified workshop.
What does C0440 mean?
The steering angle sensor reports an electrical fault. ESC and lane keeping assistance functions are typically disabled.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- ABS warning light on
- ESC/stability control deactivated
- Possible reduced brake assist
- Speedometer may behave erratically
Common causes
- High Steering angle sensor failed
- Medium Clock spring damaged
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of C0440 on the same make and model first.
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