Wheel Speed Sensor Fault
Signal from the wheel speed sensor is faulty or missing.
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)
Your vehicle has sensors that monitor how fast the wheels are turning. If there's a problem with one of those sensors, the system can't figure out how fast you're going, which can cause issues with things like traction control.
What the computer is actually seeing
The ABS or traction control system expects a continuous signal from each wheel's speed sensor. If the signal drops or is outside expected parameters (e.g., a voltage drop below 0.5V or above 4.5V), the system triggers this fault code.
What a healthy reading looks like
Voltage should typically be between 0.5V to 4.5V when the wheel is rotating. An erratic or constant voltage (e.g., 0V or 5V) indicates a fault.
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.
- 1Check the wheel speed sensor connector for damage or corrosion. Repair as needed.
- 2Inspect wiring for any visible signs of wear or damage. Fix any issues found.
- 3Using a multimeter, measure the voltage at the wheel speed sensor while the wheel is turning. You should see a voltage bounce between 0.5V to 4.5V.
- 4If the voltage is out of range, replace the wheel speed sensor. If voltage is good, suspect ABS module.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connector to the sensor
- Corrosion or bad ground connection
- Faulty ABS control 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; you might lose traction control functionality.
Will this problem come back?
If the underlying issue isn't fixed, yes, the code may return after clearing it.
Why does it pair with other codes like C0561?
Related codes often indicate multiple issues within the same system or sensor cluster.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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