ABS Wheel Speed Sensor 2 Circuit Failure
Fault in the ABS wheel speed sensor circuit for wheel 2 detected.
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What it means (plain English)
Your vehicle's computer isn’t getting a correct signal from the wheel speed sensor on wheel 2. This means it can’t tell if that wheel is spinning properly, which affects ABS and traction control.
What the computer is actually seeing
When working correctly, the wheel speed sensor should output a voltage signal between 0.5V and 3.5V depending on wheel speed. If the signal drops to 0V or has a sudden inconsistency, the computer registers a fault.
What a healthy reading looks like
Normal operation shows a voltage of 0.5V to 3.5V from the wheel speed sensor. At high speeds (30 MPH and above), expect closer to 2.5V to 3.5V. Values below 0.5V indicate an issue.
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 of wheel speed sensor 2 for damage or corrosion. Repair as necessary. - Decision: if wiring looks good, proceed to step 2.
- 22. Measure the voltage at the sensor connector with the ignition on (engine off). You should see between 0.5V and 3.5V. - Decision: if voltage is out of range, replace the sensor. If voltage is okay, continue to step 3.
- 33. Check the ABS control module for fault codes specific to wheel speed sensor 2 and other related codes. - Decision: if other codes indicate sensor or module issues, replace the necessary parts.
Common causes
- Damaged wheel speed sensor
- Corroded or damaged wiring or connectors
- Faulty ABS control module
- Wheel bearing issues affecting sensor alignment
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity. You might lose ABS and traction control, so it's best to fix it soon but you can drive it carefully.
Will this code come back after clearing it?
If the underlying issue isn't fixed, yes it will return.
Why does this code appear with other ABS codes?
Since the system relies on signals from multiple sensors, a fault in one sensor often triggers codes for related components.
Working a real vehicle right now?
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