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 computer can't get a reliable signal from the wheel speed sensor, which measures how fast your wheels are turning.
What the computer is actually seeing
The PCM expects a fluctuating voltage signal from the wheel speed sensor, typically between 0.5V and 12V as the wheel turns. If there's no change or a constant signal, it triggers this code.
What a healthy reading looks like
The normal voltage signal from the wheel speed sensor should vary from 0.5V at rest to around 12V while spinning.
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 connector for the wheel speed sensor for any signs of wear or damage. Decision: If damaged, repair or replace before continuing.
- 22. Measure the voltage signal coming from the wheel speed sensor with a multimeter while rotating the wheel. Look for a changing voltage between 0.5V and 12V. Decision: If the signal is absent or constant, the sensor likely needs to be replaced.
- 33. If the sensor output is good, check the sensor ground and power supply from the ECU. Decision: If one of these is faulty, repair the circuit and retest.
- 44. If all components are functional, scan for any additional codes or issues in the ABS module that may relate back to this sensor.
Common causes
- Damaged wheel speed sensor
- Corroded or damaged wiring
- Faulty wheel bearing
- Poor connection at the sensor or connector
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but may affect your ABS and traction control systems, increasing stopping distance.
Will the code come back after resetting?
Yes, if the issue isn't fixed, the code will likely return after a short drive.
Why does this code pair with others?
Wheel speed signals are crucial for multiple systems; they may trigger related codes if not functioning properly.
Working a real vehicle right now?
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