Wheel Speed Sensor Signal Failure
There’s an issue 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 isn’t getting a proper signal from the wheel speed sensor. This can happen if the sensor is bad or if there's a wiring issue.
What the computer is actually seeing
The ECM expects a fluctuating voltage signal between 0.5V and 12V from the wheel speed sensor. If the signal is constant or missing, the code sets.
What a healthy reading looks like
The sensor should provide a signal that changes with wheel speed; usually between 0.5V and 12V depending on 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. Inspect the wiring and connectors for damage or corrosion. Repair any issues found.
- 22. Check the sensor resistance: should be between 1,000 to 2,500 ohms. If reading is out of range, replace the sensor.
- 33. Use a scan tool to observe the wheel speed sensor data when vehicle is in motion. Confirm sensor is outputting a variable voltage.
- 44. If no signal is present, check for continuity in the wiring back to the ABS module. Repair any breaks in the wire.
- 55. If all wiring is good but signal is still missing, consider replacing the ABS module.
Common causes
- Faulty wheel speed sensor
- Damaged wiring or connectors
- Corrosion in connector pins
- Poor ground connection
- ABS module failure
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It can be drivable, but expect issues with ABS and traction control systems.
Will this code come back after clearing it?
If the issue is not resolved, yes, it will return.
Why does this code sometimes pair with other sensor codes?
Because failure in one wheel speed sensor can impact readings from others, triggering multiple codes.
Working a real vehicle right now?
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