Wheel Speed Sensor Intermittent Signal
The vehicle's wheel speed sensor is sending an unstable or intermittent signal to the computer.
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)
Your car has a sensor that detects how fast your wheels are turning. If this sensor is faulty, it sends erratic readings to the car's computer, which can affect things like ABS or traction control.
What the computer is actually seeing
The vehicle's computer is receiving irregular voltage signals from the wheel speed sensor, which are not consistent with expected patterns.
What a healthy reading looks like
Wheel speed sensors typically send a signal of 0 to 5 volts, changing with wheel speed. When stationary, expect around 0 volts, and around 2.5 volts at 25 mph.
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 related to the wheel speed sensor. Look for any signs of fraying, damage, or corrosion.
- 22. Check the wheel speed sensor mounting, ensuring it is securely in place and not blocked by debris or dirt.
- 33. Using a multimeter, test the wheel speed sensor output voltage while rotating the wheel. Expect a signal fluctuating between 0 to 5 volts as the wheel spins. If the sensor shows a constant low voltage or no change, replace the sensor.
- 44. If the sensor tests good, use a scan tool to check for any trouble codes related to the ABS or traction control systems. Clear any codes and take the vehicle for a test drive. If the code returns, further diagnose the ABS module.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Issues with the vehicle's ABS module
- Corrosion at the sensor connection
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's recommended to fix it soon as it can affect traction and braking performance, especially in slippery conditions.
Will this code come back after clearing it?
If the issue is not fixed, it will likely return after a short drive.
Why might this code pair with others?
Other codes related to ABS or traction control could indicate a systemic issue affecting multiple components.
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 →