Left Front Wheel Speed Sensor Circuit Short to Ground
There’s a short circuit in the left front wheel speed sensor wiring.
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 is trying to read the speed from the left front wheel sensor but finds the voltage is too low, like when a light bulb is broken and the circuit goes dark.
What the computer is actually seeing
The brake control module detects a voltage drop in the wheel speed sensor circuit, indicating a short to ground, usually below 0.5 volts instead of the expected 5 volts from a functioning sensor.
What a healthy reading looks like
The normal voltage from the left front wheel speed sensor should be around 0 to 5 volts under normal operation.
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. Visually inspect the left front wheel speed sensor wiring and connector for damage or corrosion. Check for continuity in the wires. Decision: If there's visible damage, repair or replace the wiring as needed.
- 22. Test the voltage at the wheel speed sensor connector with the key on, engine off. You should see around 5 volts. Decision: If voltage is present, the sensor is likely bad; replace it. If no voltage, proceed to the next step.
- 33. Disconnect the wheel speed sensor and check for continuity in the wiring from the connector back to the brake control module. A reading of 0 ohms indicates good continuity. Decision: If there's no continuity, repair the broken wire. If continuity exists, check the sensor again.
Common causes
- Frayed wiring or damaged connector
- Corrosion or moisture in the connector
- Faulty wheel speed sensor
- Mechanical damage from road debris
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Drivability may be affected due to possibly compromised ABS operation. Fix this soon.
Will this code come back after repair?
If the wiring and sensor are properly repaired or replaced, the code should not return.
Why does this code pair with others?
These codes pertain to the same module and wiring, indicating similar issues in the wheel speed sensor circuits.
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