Wheel Speed Sensor Missing
The system is detecting a wheel speed sensor signal failure.
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 isn’t getting a signal from one of the wheel speed sensors, which are usually about 0-5 volts when working. This failure can affect the ABS and traction control systems.
What the computer is actually seeing
The wheel speed sensors generate a varying voltage signal as the wheel turns. If the voltage stays at 0 volts or is out of expected threshold, it triggers this fault.
What a healthy reading looks like
Normal operation should see sensor signals between 0.5 to 4.5 volts while the vehicle is moving.
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.
- 1Inspect the wiring and connectors for any signs of damage or corrosion (especially near the wheel hub).
- 2Check for any obvious physical damage to the wheel speed sensor itself.
- 3Using a multimeter, measure the voltage at the wheel speed sensor connector; it should be between 0.5 to 4.5 volts when the wheel is turning.
- 4If the voltage is not within range, swap the wheel speed sensor with another wheel to see if the fault code follows. If it does, replace the sensor.
- 5If the sensor is okay, check the ABS control unit for faults or errors.
Common causes
- Broken wiring or connector to wheel speed sensor
- Failed wheel speed sensor
- Corrosion or dirt on wheel speed sensor connections
- Faulty ABS module or control unit
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally drivable, but you'll lose ABS and traction control until it’s fixed.
Will this code come back after clearing it?
Yes, if the underlying issue isn’t fixed, the code will likely return.
Why does this problem often pair with other codes?
Wheel speed sensors affect multiple systems, like ABS and traction control, leading to related faults.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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