Left Front Wheel Speed Sensor Range/Performance Problem
The left front wheel speed sensor is reporting an incorrect value to the control module.
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 this sensor gives a value that's too high or too low compared to what the vehicle expects, it sets a code in the computer.
What the computer is actually seeing
The control module monitors the voltage signal from the left front wheel speed sensor. It expects a voltage signal that varies with wheel speed, typically between 0.5V and 2.5V. If the signal falls outside the expected range or is inconsistent, the code is triggered.
What a healthy reading looks like
0.5V to 2.5V during normal operation, with specific values required for specific speeds (e.g., 0.5V at 0 mph, increasing gradually with 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 connectors at the left front wheel speed sensor. Look for damage, corrosion, or loose connections. If found, repair or replace as necessary. Decision: Good wiring and connectors, proceed; damaged, repair and retest.
Common causes
- Faulty left front wheel speed sensor
- Damaged wiring or connectors in the sensor circuit
- Dirty or obstructed tone ring on the left front wheel
- Issues with the ABS module
- Incorrect tire size affecting wheel speed readings
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
While the vehicle may be drivable, you could lose ABS functionality, which can be risky in slippery conditions. Fix it soon.
Will this code come back after I clear it?
If the issue isn’t fixed, yes, the code will likely return after clearing it.
Why does this code sometimes pair with others?
Multiple wheel speed sensors work together in the ABS system, so if one sensor fails, it can affect the readings of others.
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