Wheel Speed Sensor Circuit
Fault detected in the wheel speed sensor circuit.
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What it means (plain English)
The computer is having trouble reading the speed at which the wheel is turning, which is important for safety systems like ABS and traction control to work properly.
What the computer is actually seeing
The vehicle’s computer expects to receive a smooth, consistent signal voltage from the wheel speed sensors, typically around 0-5 volts. When the signal is erratic or absent, it triggers a fault code.
What a healthy reading looks like
Normal wheel speed sensor voltage should fluctuate between 0-5 volts as the wheel turns. A steady signal means a problem.
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. Inspect the wiring and connectors at the wheel speed sensor for any visible damage or corrosion.
- 22. Check the resistance of the wheel speed sensor using a multimeter; it should typically be between 1,000-2,500 ohms.
- 33. Use a scan tool to read the live data from the wheel speed sensors; look for a consistent voltage when the vehicle is moving. If no signal is present, the sensor may need to be replaced. If the signal is erratic, check for wiring issues.
- 44. If sensors and wiring are in good condition, inspect the ABS module and its connections.
Common causes
- Damaged wiring or connectors in the wheel speed sensor circuit.
- Faulty wheel speed sensor.
- Corrosion at sensor connections or connectors.
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's better to fix this soon; it can affect anti-lock brakes and traction control.
Will this code come back after repairs?
If the issue is resolved properly, it should not come back.
Why does this code pair with other wheel sensor codes?
Codes often group together for similar faults in the wheel speed sensor circuit.
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