ABS Wheel Speed Sensor 2 - Signal Range/Performance Problem
The ABS system is detecting an issue with the second wheel speed sensor.
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 second wheel speed sensor isn't working correctly, which affects the anti-lock brakes.
What the computer is actually seeing
The ABS module expects to see a voltage signal between 0 and 5 volts from the wheel speed sensor. If the sensor's signal drops below 0.5V or rises above 4.5V while the wheel is turning, it triggers this code.
What a healthy reading looks like
Expected voltage range is 0.5V to 4.5V with the vehicle moving. At zero speed, the voltage should be near 0V.
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 wiring and connector for the second wheel speed sensor for damage or corrosion.
- 22. Check the sensor output at the connector with a multimeter while the vehicle is moving. Expect 0.5V to 4.5V.
- 33. If the voltage is out of range, disconnect the sensor and check resistance across the sensor leads. Should be within manufacturer's spec (e.g., 1k-2k ohms).
- 44. If resistance is good, check the reluctor ring for damage or debris. Clean if necessary, replace if damaged.
- 55. If all checks are good, consider testing or replacing the ABS control module.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Dirty sensor reluctor ring
- Faulty ABS control module
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended. ABS may not function properly, affecting brake performance.
Will the code come back after clearing?
If the underlying issue isn't fixed, yes, the code will likely return.
Why does this code relate to other wheel speed sensor codes?
Many times, multiple sensors can fail or show similar symptoms; the system monitors all wheels.
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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