Wheel Speed Sensor Signal Fault
There’s a problem with one of the wheel speed sensor signals.
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)
This code means that the computer isn't getting the right signal from a wheel speed sensor. That sensor should send a signal when the wheel turns, helping the brakes and traction control work properly.
What the computer is actually seeing
The ABS or traction control module expects a consistent voltage signal (typically 0-5 volts) indicating the speed of each wheel during vehicle operation.
What a healthy reading looks like
The expected voltage from a working wheel speed sensor is about 0-5 volts, varying with wheel speed. At a stop, it may be close to 0V, while at highway speeds it should approach 5V.
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 for the wheel speed sensors for damage or corrosion.
- 22. Check the wheel speed sensors’ resistance (should be around 1,000-2,500 ohms). Disconnect the sensor at the connector, then measure resistance. If it’s out of spec, replace the sensor.
- 33. Use a scan tool to read live data. Check the wheel speed signals while slowly rotating the wheel by hand. If one sensor doesn’t respond or has an abnormal reading (like 0V when it should be higher), identify the faulty sensor.
- 44. If the sensors are good, check the ABS control module for fault codes or test it according to manufacturer's specifications.
Common causes
- Damaged wheel speed sensor
- Broken wiring or poor connections
- Faulty ABS control module
- Wheel bearing issues
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Moderately safe for short distances, but be aware of potential brake issues. Fix it soon.
Will this code come back after clearing it?
Yes, if the underlying issue isn’t fixed, the code will reappear.
Why might I see this code with other codes?
Because wheel speed sensors are linked to ABS, traction control, and stability control systems, other related faults may appear.
Working a real vehicle right now?
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