Wheel Speed Sensor Circuit Failure - Left Front
There's a fault 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 isn't sending the right signals to the control module, which could mess with your traction control or ABS systems.
What the computer is actually seeing
The control module expects a variable frequency signal based on the wheel rotation speed; when this signal drops below a threshold (usually less than 0.5 volts while the wheel is moving), the module sees this as a fault.
What a healthy reading looks like
The wheel speed should generate a signal between 0.5V - 5V depending on speed; pulses should be present in motion.
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 left front wheel speed sensor wiring and connector for damage or corrosion. If found, repair or replace. Decision: Is the wiring intact? Yes - Go to step 2. No - Repair wiring.
Common causes
- Damaged wheel speed sensor
- Corroded wiring or connectors
- Faulty ABS module
- Bad brake rotor or hub assembly
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle?
Yes, but the traction control and ABS may not function properly, especially in slippery conditions.
Will this code come back after clearing?
It may if the underlying issue isn't fixed; address the sensor or wiring issues.
Why is it related to other codes?
These codes usually indicate similar wheel speed sensor issues or other ABS-related faults.
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 →