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 measures how fast each wheel is turning. If there's a wiring issue, the computer won't get the right info, affecting safety features like ABS.
What the computer is actually seeing
The control module expects to see a varying voltage from the wheel speed sensor, typically around 0-5 volts depending on speed. If it's constant or missing, you'll get this code.
What a healthy reading looks like
Wheel speed sensor voltage should vary with wheel speed, typically between 0.5V to 4.5V for normal operation, depending on the specific system design.
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.
- 1Inspect wiring and connectors for damage or corrosion. Repair as necessary. Decision Point: If repaired and code clears, job done.
- 2Measure voltage at the wheel speed sensor connector with the key on and engine running. Expected: 0.5-4.5V during wheel rotation. Decision Point: If voltage is present, suspect a bad sensor.
- 3If no voltage, check for power and ground at the connector. Decision Point: If power and ground are good, replace the wheel speed sensor.
Common causes
- Damaged wiring or connectors
- Faulty wheel speed sensor
- Corrosion at electrical connections
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not ideal; you may lose ABS or traction control. Drive with caution until repaired.
Will this code come back after clearing?
If the problem isn't fixed, yes, the code will usually return after some driving.
Why does this code appear with other codes?
Often, wheel speed sensor failure affects other systems, like ABS or traction control, triggering related codes.
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