Steering Angle Sensor Signal Circuit Malfunction
The steering angle sensor is reporting a faulty 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)
Inside the steering system, the steering angle sensor tells the vehicle how much and in which direction you're turning. If it's off or not sending a signal, the car can’t adjust things like traction control and stability.
What the computer is actually seeing
The computer expects a stable voltage signal proportional to the steering wheel position; typically around 0.5V to 4.5V as you turn the wheel from left to right.
What a healthy reading looks like
A valid steering angle signal should range between 0.5V (full left) and 4.5V (full right).
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 for any visible damage or loose connections in the wiring harness to the steering angle sensor. Repair if necessary. Decision: Is the wiring intact? If yes, proceed to step 2. If no, fix the wiring and retest.
- 22. Test the steering angle sensor output with a multimeter. At rest, it should output around 2.5V. Turn the steering wheel left and right to see if the voltage changes smoothly. Decision: Is the sensor output within expected values? If yes, go to step 3. If no, replace the steering angle sensor and retest.
- 33. Check the vehicle's power steering control module for faults or malfunctions using a scan tool. Decision: Are there additional codes present? If yes, address additional codes first. If no, check for proper grounding and power to the sensor.
Common causes
- Wiring issues in the signal circuit
- Defective steering angle sensor
- Faulty connector or bad ground
- Faulty power steering control module
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive with code C0825?
Yes, but be cautious; the vehicle’s traction control and stability systems might not operate correctly, which can affect handling in slippery conditions.
Will this code come back after clearing it?
If the underlying issue isn’t fixed (like a bad sensor or wiring), the code will likely return.
Why does this code sometimes accompany other codes?
The steering angle sensor is often linked to stability and traction control systems, so failures can show up with related systems.
Working a real vehicle right now?
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