Wheel Speed Sensor 2 Circuit Malfunction
There’s an issue with the second wheel speed sensor in the system.
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 vehicle's computer is not getting a proper signal from the second wheel speed sensor that helps it determine how fast the wheels are turning.
What the computer is actually seeing
The brake controller or ABS module expects a voltage signal roughly between 0.5V (when at rest) and 5V (when wheel speed increases). If the reading is stuck below 0.2V or above 4.8V under expected conditions, it triggers this code.
What a healthy reading looks like
Look for an expected signal voltage of 0.5V to 5V proportional to wheel speed, with a variable frequency based on the wheel's rotation.
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. Check the visual condition of wiring and connectors at the wheel speed sensor for damage or corrosion.
- 22. Measure the voltage at the wheel speed sensor connector with the key on and the engine off; expect a reading around 0.5V to 5V. If there’s no voltage, check the power supply.
- 33. Test the wheel speed sensor by rotating the wheel manually while observing the voltage signal; it should fluctuate as the wheel turns. If it stays constant, the sensor is likely bad.
- 44. Inspect the ABS module (if applicable) for fault codes; check connections to ensure they are clean and secure. If other sensor codes are present, take note of that.
- 55. Repair or replace any damaged wiring or faulty connectors; replace the wheel speed sensor if it fails the manual test.
Common causes
- Bad wheel speed sensor
- Corroded or damaged wiring
- Poor connector contact
- Faulty ABS module
- Wrong installation of the sensor
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe to drive short distances, but the ABS may not function properly, affecting braking performance.
Will this code come back after clearing it?
If the underlying issue isn't fixed, the code will likely return after you drive a few miles.
Does this code pair with other codes?
Yes, it can appear alongside other ABS or wheel speed sensor codes, indicating multiple sensor issues.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →