Wheel Speed Sensor - Left Rear Circuit Low
The left rear wheel speed sensor circuit is reporting a low voltage condition.
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 thinks the left rear wheel isn't spinning like it should, possibly due to a bad sensor or wiring problem.
What the computer is actually seeing
The ABS module monitors the left rear wheel speed sensor. It expects a voltage between 0.5V to 3.5V when the wheel is turning. If it sees below 0.5V consistently, it sets this code.
What a healthy reading looks like
Voltage for a functioning sensor during movement should be between 0.5V - 3.5V; at a stop, it can drop to 0V.
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 wiring and connector at the left rear wheel speed sensor for damage or corrosion.
- 2Test the left rear wheel speed sensor with a multimeter; it should produce a voltage signal when the wheel is turning.
- 3If the sensor is faulty, replace the sensor and clear the code.
- 4If the wiring and sensor are good, check the ABS control module for faults.
Common causes
- Faulty left rear wheel speed sensor
- Damaged wiring or connector to the sensor
- Corrosion in the connector
- Faulty ABS control module
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive the vehicle safely with this code?
You can drive, but the ABS and traction control may not function correctly, which could be a safety risk.
Will this code come back after clearing it?
It may return if the underlying issue isn't fixed, like a bad sensor or wiring.
Why is this code affecting my ABS but not my brakes?
This code primarily affects the ABS system, which relies on wheel speed data to function properly, but traditional braking should still work.
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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