Wheel Speed Sensor A Circ. Range/Performance Problem
This code indicates a problem with the wheel speed sensor for axle A.
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 monitors how fast each wheel is spinning. If the data from the sensor is out of normal range, the system thinks there’s an issue with the wheel speed, which can affect traction control and stability systems.
What the computer is actually seeing
The control module expects to see a consistent voltage signal that corresponds with wheel speed; if it sees erratic signals or no signal, it sets this code.
What a healthy reading looks like
Normal wheel speed sensor signals typically range from 0.5 volts (stationary) to 5 volts (maximum speed), with frequency changing as wheel speed varies.
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 at the wheel speed sensor for any visible damage or corrosion. Repair as needed.
- 22. Check the sensor's resistance with a multimeter; it should be within the range of 1K to 3K ohms. Replace if out of range.
- 33. Verify the power and ground to the sensor with the ignition on; you should see around 5 volts. Repair if voltage is missing.
- 44. Using a scan tool, monitor the wheel speed sensor output while the vehicle is moving. The readings should change consistently with wheel speed. If not, replace the sensor.
- 55. Check for an active ABS or traction control light that could indicate an issue with the system itself. Use a scan tool to retrieve additional codes.
- 66. Clear the code and take the vehicle for a test drive to see if it returns, indicating an intermittent issue.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Issues with the ABS module
- Poor ground connection
- Corroded sensor or connector
Typical repair cost
$150-$400
Related codes
Frequently asked questions
Can I still drive my vehicle with this code?
Yes, but you may notice issues with traction control and stability systems. It's best to fix it soon.
Will this code come back after I clear it?
It may return if the underlying problem isn’t fixed, especially if there's a faulty sensor or wiring issue.
Why does this code sometimes pair with other codes?
Often, multiple wheel speed sensors can fail or have related wiring issues that trigger multiple fault codes.
Working a real vehicle right now?
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