Wheel Speed Sensor Circuit Failure
There’s 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 lets the car know how fast each wheel is turning. If this sensor fails or its wiring is bad, the computer doesn’t know the wheel speed and triggers a warning.
What the computer is actually seeing
The computer sees inconsistent or no signal from the wheel speed sensor, which varies depending on speed and vehicle conditions.
What a healthy reading looks like
Expected voltage signal is typically between 0.5V to 5V AC while the vehicle is moving, with a frequency depending on wheel speed.
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. Visual check of wheel speed sensor wiring and connectors for damage or corrosion. Repair as necessary. Decision: If repaired, clear code and test drive. Check if code returns.
- 22. Measure voltage at the wheel speed sensor connector with the key on, engine off. Expected values are 0.5V to 5V with the wheel spinning. Decision: If no signal, proceed to step 3; if signal is good, replace the sensor.
- 33. Test the resistance of the wheel speed sensor itself using an ohmmeter. Resistance should be within specifications (check service manual for exact values). Decision: If out of range, replace the sensor. If within range, proceed to step 4.
- 44. Inspect the ABS control module for faults; check for any more diagnostic trouble codes. Decision: Replace ABS module if determined faulty.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Corroded terminals
- Faulty ABS module
- Mechanical interference or damage
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally not safe; the ABS may not work properly, increasing stopping distances.
Will this code come back after clearing?
If the underlying issue isn’t fixed, yes, it will return.
Why might it pair with other codes?
It often pairs with other codes related to wheel speed sensors or the ABS system, indicating systemic issues.
Working a real vehicle right now?
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