Left Rear Wheel Speed Sensor Circuit Low
Issues with the left rear wheel speed sensor affecting vehicle dynamics.
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 rear wheel speed sensor isn’t sending the right signals to the computer. This sensor monitors how fast the wheel is spinning, which helps with anti-lock brakes and traction control.
What the computer is actually seeing
The ABS control module expects a signal voltage between 0.5V to 5.0V from the left rear wheel speed sensor while the wheel is spinning. It detects low voltage or no signal from the sensor, indicating a problem.
What a healthy reading looks like
Wheel speed should correlate with vehicle speed; voltage should range from 0.5V to 5.0V based on wheel rotation 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.
- 1Inspect the wiring harness and connectors to the left rear wheel speed sensor for damage or corrosion.
- 2Check the resistance of the left rear wheel speed sensor with a multimeter; it should be around 1,000 ohms. If outside this range, replace the sensor.
- 3Test the voltage at the sensor while the vehicle is in motion; ensure it reads between 0.5V to 5.0V. If no signal, the sensor is faulty.
- 4If no issues are found with the sensor or wiring, check the ABS control module for faults.
Common causes
- Faulty left rear wheel speed sensor
- Damaged wiring or connectors to the sensor
- Dirty or corroded sensor connection
- Issues with the ABS control module
Typical repair cost
$$
Related codes
Frequently asked questions
Can I drive with this code active?
Yes, but be cautious as braking performance could be affected and you could lose ABS functionality.
Will this code come back after resetting?
If the underlying issue isn't fixed, yes, the code will most likely return.
Why does it pair with other wheel speed sensor codes?
If one wheel sensor fails, the system may indicate related sensor faults due to shared circuits or common module failures.
Working a real vehicle right now?
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