Wheel Speed Sensor Rear Left Circuit Range/Performance Problem
Indicates a performance issue with the rear left 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 rear left wheel speed sensor isn't sending a valid signal to the computer, which can affect vehicle traction control and anti-lock brakes.
What the computer is actually seeing
The ABS module expects a voltage signal that fluctuates between 0.5V (no movement) and 12V (when the wheel is moving). An abnormal signal indicates a fault.
What a healthy reading looks like
Voltage should fluctuate between 0.5V and 12V based on wheel speed; a constant reading outside this range indicates a problem.
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 for the rear left wheel speed sensor for damage or corrosion. If no damage found, proceed to step 2.
- 22. Use a multimeter to test the voltage at the sensor connector while the vehicle is in motion. If voltage is fluctuating as expected, the issue may be in the ABS module. If not, replace the sensor.
- 33. Check the ABS module for diagnostic trouble codes related to the unit itself. If codes are present, consider replacing or repairing the module.
Common causes
- Damaged wiring or connector to the rear left wheel speed sensor.
- Faulty rear left wheel speed sensor.
- Faulty ABS module or control unit.
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's not ideal to drive with this code as it can affect braking performance and traction control, fix it soon.
Will the issue come back after repair?
If the root cause is properly addressed, the issue should not return.
Why does this code pair with other codes?
It often indicates a related issue in the ABS system or with the wheel speed sensors.
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