Left Front Wheel Speed Sensor Circuit Range/Performance
This code indicates an issue with the left front wheel speed sensor performance.
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 left front wheel speed sensor measures how fast the wheel is turning. If it’s giving readings that are too high or low, it confuses the computer which can affect traction control and ABS.
What the computer is actually seeing
The ABS computer expects wheel speed signals (usually around 5V pulses for each rotation) that correlate with the vehicle's speed. If the signal is erratic or outside expected range, it triggers this code.
What a healthy reading looks like
Expect wheel speed sensor outputs between 0-5V. At a steady speed, it should produce pulses consistently based on wheel RPM.
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.
- 1Check the wheel speed sensor wiring and connector for damage, corrosion or looseness.
- 2Inspect the sensor for debris or dirt that could affect performance.
- 3Test the voltage at the sensor connector; should be between 0-5V while spinning the wheel.
- 4If the sensor signal is absent or erratic, replace the wheel speed sensor and retest.
- 5If the problem persists, check the ABS module for faults.
Common causes
- Damaged wheel speed sensor or wiring
- Corroded connectors
- Faulty ABS module
- Debris on the sensor
- Worn wheel bearings affecting sensor position
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's drivable but you may lose ABS and traction control until it's fixed.
Will this code come back after clearing it?
If the issue isn't resolved, it will likely return after a short period of driving.
Why does this code show up with other codes?
It often pairs with other wheel speed sensor codes or ABS-related faults due to the system's interconnected nature.
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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