Wheel Speed Sensor Malfunction
There's a problem with the wheel speed sensor signal.
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 spinning, and this code means it's either not sending a signal or the signal it sends is out of range.
What the computer is actually seeing
The vehicle's computer expects a consistent signal from each wheel speed sensor that corresponds to the wheel rotation. If the sensor is damaged or not working, the computer sees erratic or no data, which triggers the code.
What a healthy reading looks like
Wheel speed signals should be between 0-12 volts when the vehicle is moving, with an expected frequency of 0-15Hz at low speeds, increasing with vehicle 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.
- 11. Check wiring and connectors for the wheel speed sensor. Look for frays or corrosion. Decision point: If any damage is found, repair or replace the wiring/connectors. Proceed to step 2 if everything looks good.
- 22. Use a scan tool to check real-time data from the wheel speed sensor. Verify that the readings change when the wheel rotates. Decision point: If readings are not changing, the sensor is likely faulty. If readings are present, proceed to step 3.
- 33. Inspect the sensor physically for damage or excessive dirt buildup. Clean or replace the sensor as necessary. Decision point: If the sensor is found clear but the code persists, check the ABS module for faults.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors to the sensor
- ABS module issues
- Corroded connections or rust
- Wheel bearing failure affecting sensor placement
Typical repair cost
$100-$300
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but can cause issues with ABS and traction control, so fix it soon.
Will this code come back after clearing it?
If the underlying issue is not fixed, yes, it will likely return.
Why do I see this code along with other wheel-related codes?
They're often interconnected; a failure in one sensor can affect others, triggering multiple fault codes.
Working a real vehicle right now?
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