Wheel Speed Sensor Circuit Range/Performance Problem (Left Front)
There’s a malfunction in the left front wheel speed sensor circuit.
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 that wheel is spinning. If the signal looks wrong, like it's too low or high, the computer thinks something is wrong with the sensor or its wiring.
What the computer is actually seeing
The ABS or traction control system sees inconsistent or incorrect data from the left front wheel speed sensor, usually voltage or resistance out of range.
What a healthy reading looks like
Voltage signal should be between 0.5V and 5.0V when measuring at the sensor. Expected frequency while moving is typically around 1Hz to 20Hz depending on vehicle 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 connector at the left front wheel speed sensor for damage or corrosion. If damaged, repair or replace the wiring/connector.
- 22. Measure the voltage at the wheel speed sensor connector with the ignition on and the wheel turning. You should see between 0.5V and 5.0V. If not, there's a wiring issue or a bad sensor.
- 33. If the voltage is good, check for signal continuity from the sensor back to the ABS module using a multimeter. If there's no continuity, repair the wiring.
- 44. If everything checks out and you still have the code, consider replacing the wheel speed sensor.
Common causes
- Damaged wheel speed sensor
- Wiring harness open or shorted
- Corroded connectors
- Faulty control module
- Brake rotor interference
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's okay to drive, but traction control and ABS might not work properly until it's fixed.
Will this code come back after I clear it?
If the problem isn't fixed, yes, it will likely return.
Why does this code sometimes pair with traction control codes?
Since the wheel speed sensor is crucial for traction control and ABS operation, issues with the sensor can trigger multiple codes related to those systems.
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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