Wheel Speed Sensor Signal Intermittent
The wheel speed sensor signal is inconsistent or missing.
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 tells the computer how fast each wheel is turning. If it can't get a solid signal from that sensor, it thinks there’s a problem with the braking or traction control system.
What the computer is actually seeing
The computer monitors the voltage output from the wheel speed sensor which should typically be around 0.5V to 5V depending on wheel speed. When the signal is lost or jumps significantly (like from 0V to 5V irregularly), it flags an error.
What a healthy reading looks like
Expected voltage should remain steady between 0.5V to 5V; no sudden drops or spikes. Frequency of signal should match the speed of the vehicle (ex: at 30 MPH, expect around 1.5 Hz).
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 for any obvious wiring issues or damage to the wheel speed sensor wiring harness and connector.
- 22. Inspect the wheel speed sensor itself for any visible damage or dirt.
- 33. Using a multimeter, test the sensor signal while the vehicle is moving; check for voltage output consistency between 0.5V and 5V.
- 44. If the signal is inconsistent, swap the wheel speed sensor with a known good one and retest. If the problem follows the sensor, replace it.
- 55. If the issue persists, inspect the reluctor ring for damage or debris.
- 66. Check the vehicle’s ABS module for fault codes and inspect the brake control module for further problems.
Common causes
- Faulty wheel speed sensor
- Wiring issues (broken, shorted)
- Poor connector connection (corrosion or dirt)
- Damaged reluctor ring on the wheel hub
- Faulty brake control module
Typical repair cost
$$$
Related codes
Frequently asked questions
Can I drive the vehicle with this code active?
Yes, but take caution as the ABS or traction control systems may not function properly.
Will this code come back after clearing it?
It may return if the underlying issue isn’t fixed, especially if it's a sensor or wiring problem.
Why does this code show up when I have a problem with my brakes?
The wheel speed sensor is part of the ABS system. If it’s malfunctioning, it can affect braking performance.
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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