Wheel Speed Sensor Circuit Malfunction
Indicates a malfunction 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 sends data about how fast each wheel is turning. If the sensor or its wiring is bad, the computer gets faulty information.
What the computer is actually seeing
The computer detects an unusual signal from the wheel speed sensor that doesn't match expected values. This can be a constant high or low voltage when it should be fluctuating around 0-5 volts depending on wheel speed.
What a healthy reading looks like
Signal voltage should fluctuate between 0 to 5 volts when wheel is turning, with a specific frequency corresponding to the speed.
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 wheel speed sensor wiring for damage or wear. Replace if damaged.
- 2Check the sensor connector for corrosion or looseness. Clean or replace if necessary.
- 3Measure the voltage output from the wheel speed sensor with a multimeter. Should be between 0-5 volts when the wheel is turning. If not, replace the sensor.
- 4Verify if other related codes appear. If other codes about the ABS system are logged, follow up with specific repairs related to those codes.
Common causes
- Damaged wiring to the wheel speed sensor
- Faulty wheel speed sensor
- Corroded or loose connector at the sensor
- Brakes or wheel components interfering with sensor operation
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but you may experience issues with anti-lock brakes and traction control until it's fixed.
Will the code come back after erasing?
It can return if the underlying issue isn't resolved, like a bad sensor or wiring.
Why does this code often pair with ABS codes?
Because the wheel speed sensor is crucial for the ABS system operation, a failure can trigger multiple codes.
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