Wheel Speed Sensor Circuit Failure
Indicates a fault in 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 wheel speed sensor measures how fast each wheel is turning. If there's a fault, the system can't get accurate data, which may impact traction control and ABS functionality.
What the computer is actually seeing
The ABS control module receives fluctuating or no voltage signal from the wheel speed sensor, which should typically provide a 0-5V signal depending on wheel speed.
What a healthy reading looks like
At rest, the wheel speed sensor should show around 0V. While driving, it should fluctuate between 0-5V according to wheel speed, ideally changing with each wheel revolution (approx. 1-2V per revolution).
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.
- 1Check the wiring and connectors of the wheel speed sensor for any visible damage or corrosion before testing further. Repair any issues found.
- 2Test the voltage at the wheel speed sensor connector using a multimeter. It should read 0-5V while the vehicle is moving. If it reads 0V, continue to the next step.
- 3Inspect the wheel speed sensor itself for physical damage or dirt obstruction. Clean or replace the sensor as necessary based on physical condition.
- 4If the sensor is good, check for continuity in the wiring between the sensor and the ABS module. Repair any breaks found in the wiring.
- 5If all previous steps are clear, consider checking the ABS control module for faults or failures.
Common causes
- Damaged wiring or connectors in the wheel speed sensor circuit
- Faulty wheel speed sensor
- Corrosion at the sensor connection
- Failed ABS module
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive with this code active?
Yes, but it may affect your traction control and ABS, so it's best to fix it soon.
Will this code come back after clearing it?
It may return if the underlying issue isn't resolved, such as a faulty sensor or wiring issue.
Why does this code sometimes appear alongside a stability control warning?
Because the wheel speed sensor is critical for both traction control and stability programs; faults can trigger warnings for both systems.
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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