Abs Wheel Speed Sensor Circuit Failure
There’s a problem with 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 vehicle's computer is not getting the right signals from the wheel speed sensor, which tells it how fast each wheel is spinning. This can affect braking and traction control.
What the computer is actually seeing
The ABS module expects to see a voltage signal between 0.5V to 4.5V from the wheel speed sensor while the vehicle is moving.
What a healthy reading looks like
Sensor voltage should ideally change between 0.5V (stationary) and 4.5V (moving above 5 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 wheel speed sensor wiring and connector for damage or corrosion. Fix any issues found. Decision Point: Is the wiring good? If yes, proceed to step 2. If no, repair or replace as needed.
- 22. Check the wheel speed sensor signal using a multimeter. You should see a voltage between 0.5V and 4.5V while spinning the wheel. Decision Point: Is the signal within range? If yes, proceed to step 3. If no, replace the wheel speed sensor.
- 33. Inspect the ABS control module connections. Make sure they are clean and secure. Decision Point: Are connections good? If yes, tech can consider ABS module replacement. If no, repair the connections.
Common causes
- Damaged wheel speed sensor
- Corroded or damaged wiring in the circuit
- Faulty ABS control module
- Poor electrical connection at the sensor or module
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle?
Yes, but expect reduced braking efficiency and potential traction control issues. Fix it as soon as possible.
Will the code come back after clearing?
It may, especially if the underlying issue isn't fixed. Clearing codes only resets the memory.
Why does this code appear with others?
Related codes typically indicate issues with other sensors or circuits linked to ABS operation.
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