Left Front Wheel Speed Sensor Circuit Range/Performance Problem
The left front wheel speed sensor is reporting incorrect values.
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 reads data from the left front wheel speed sensor to monitor how fast that wheel is turning. If the readings are too high, too low, or erratic, it triggers a fault code.
What the computer is actually seeing
The computer monitors the voltage signal from the left front wheel speed sensor, expecting a consistent voltage change as the wheel rotates. If the voltage deviates beyond its normal range, the code sets.
What a healthy reading looks like
Normal voltage should vary between 0.5V to 4.5V while the vehicle is moving; it should indicate around 2.5V when stationary in absence of movement.
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 condition of the left front wheel speed sensor wiring and connectors for wear, corrosion, or disconnections. If damaged, repair or replace as necessary.
- 2With the vehicle stationary, use a multimeter to measure the voltage at the wheel speed sensor connector. You should see around 2.5V. If not, trace the wiring back to the ABS module.
- 3Inspect the wheel speed sensor itself for damage or dirt. Clean or replace the sensor if it's dirty or physically damaged.
- 4If the sensor and wiring check out, use a scan tool to check for other related codes, and clear the codes. Take the vehicle for a test drive and see if the code returns.
Common causes
- Wiring issues (damaged or corroded wires)
- Faulty wheel speed sensor
- Bad connector or terminal connection
- Problem with the ABS module or control unit
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It is drivable but you may have reduced braking performance and stability control features. Fix it soon.
Will the code come back after clearing it?
If the underlying issue isn't fixed, the code will likely return after some driving.
Why is this code paired with others?
This code may trigger alongside others related to wheel speed, traction control, or anti-lock braking systems due to shared sensor signals.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →