Steering Position Sensor Circuit Malfunction
Issues detected in steering position sensor wiring or signal.
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 position sensor tells the computer where the steering wheel is positioned. If there's a fault, the computer can't figure out the steering angle correctly, which affects things like stability control.
What the computer is actually seeing
The vehicle's computer is expecting a smooth voltage signal between 0.5V (full left turn) and 4.5V (full right turn), and steady changes in between as you turn the wheel.
What a healthy reading looks like
0.5V to 4.5V depending on steering wheel position; 2.5V is center position.
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. Inspect the wiring and connectors around the steering position sensor for damage or corrosion. Repair as needed. Decision: Is there visible damage? If yes, fix and retest code.
- 22. Use a multimeter to measure the voltage at the steering position sensor connector with the ignition on (engine off). Expected readings: 0.5V to 4.5V. Decision: Is the voltage range correct? If yes, the sensor may be bad. If no, trace wiring.
- 33. If the voltage is incorrect, perform a continuity test on the sensor wiring to the PCM. Decision: Is there continuity? If no, repair the wiring. If yes, replace the steering position sensor.
Common causes
- Wiring issues in the steering column
- Faulty steering position sensor
- Connector problems
- Corrosion on sensor terminals
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but be cautious; it may affect stability control systems.
Will this code come back after clearing?
It can return if the underlying issue isn't fixed.
Why is this code paired often with C0851 or C0852?
These codes typically indicate similar sensor or wiring issues that occur together.
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