Wheel Speed Sensor Malfunction
There's a fault 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 computer uses data from the wheel speed sensor to determine how fast each wheel is turning. If it doesn’t get that data or it’s incorrect, the brakes or traction control might not work properly.
What the computer is actually seeing
The ABS Controller expects a steady frequency signal from the wheel speed sensor that correlates with rotational speed. If the signal is interrupted or out of range, it triggers the fault code.
What a healthy reading looks like
Wheel speed signals should range from 0 to 5 volts with a frequency corresponding to wheel speed; typically 0-2000 RPM equals 0-5V.
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 connector to the wheel speed sensor for damage or corrosion; repair as needed. Decision: If wiring is okay, proceed to step 2. If damaged, repair and retest.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connector to the sensor
- Brake control module fault
- Corrosion on sensor terminals
- Faulty ABS control module
Typical repair cost
$$ - $$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but you might experience reduced braking performance or issues with stability control. Fix it soon.
Will this code come back after clearing?
If the underlying issue isn’t resolved, it will likely return after a short drive.
Why do I see this code with others like C0295?
Multiple wheel speed sensor codes often indicate issues with the sensor circuit or the ABS system as a whole.
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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