Wheel Speed Sensor Circuit Failure
Indicates a problem with the wheel speed sensor circuit.
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 wheel speed sensor tracks how fast each wheel is turning. If it fails or there’s an issue with the wiring, the car can't accurately see how fast it's going, which can mess with the stability control and ABS systems.
What the computer is actually seeing
The computer expects to receive a voltage signal between 0.5V and 12V from the wheel speed sensor under normal conditions. If it drops below 0.2V or above 12.5V, you’ll get this code.
What a healthy reading looks like
Normal signal voltage should range from 0.5V to 12V corresponding to wheel speed. At rest, expect near 0V; while moving, values should increase up to around 5V for typical speeds.
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 connector for the wheel speed sensor for any visible damage or corrosion.
- 22. Using a multimeter, measure the voltage at the wheel speed sensor connector with the ignition on but engine off. Expect around 5V reference voltage. If absent, check for power and ground.
- 33. Inspect the sensor itself. Remove it and check for any dirt or debris that could affect its placement.
- 44. If sensor appears fine, connect a scan tool and look at live data for wheel speed readings while spinning the wheel manually. If it doesn’t change, suspect a bad sensor, otherwise suspect wiring or ECU.
- 55. Clear the fault code and take the vehicle for a test drive to see if the code returns.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Corroded plugs
- Poor grounding
- Sensor misalignment
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle with this code?
Yes, but avoid driving in conditions where stability control is critical, as it may not function correctly.
Will this code come back after I clear it?
If the underlying problem isn't fixed, yes, the code will typically come back.
Why does this code pair with other codes?
Because multiple systems often share inputs; if one sensor fails, it can affect others and trigger related fault codes.
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