Left Front Seat Position Sensor Circuit Short to Ground
There's a short to ground in the left front seat position 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 left front seat position sensor, which tells the computer where the seat is, is shorting out instead of sending normal signals. This can affect seat adjustments and safety features.
What the computer is actually seeing
The seat position sensor should send a voltage signal that changes with seat position. A short to ground causes the signal to drop too low (near 0V).
What a healthy reading looks like
Expect voltage between 0.5V and 4.5V depending on the seat position. Any reading below 0.5V indicates a short to ground.
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 to the left front seat position sensor. Look for frayed or damaged wires.
- 22. Check the connectors for corrosion or damage. Clean and reseat if necessary.
- 33. Measure the voltage at the seat position sensor connector with the key on (engine off). Expected values are 0.5V to 4.5V.
- 44. If voltage is below 0.5V, disconnect the sensor and recheck the voltage. If it reads normal, replace the sensor. If not, further trace the wiring for shorts to ground.
- 55. If voltage is normal with the sensor disconnected, inspect for shorts in the wiring harness between the seat and the PCM.
Common causes
- Damaged wiring in the seat harness
- Faulty seat position sensor
- Water intrusion causing electrical shorts
- Loose or corroded connectors at the seat or ECU
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's generally safe to drive, but seat adjustments may not work as intended, affecting comfort and safety.
Will this code come back after clearing?
If the underlying issue isn’t fixed, the code is likely to reappear.
Why is this code paired with others?
These codes often indicate related faults in the seat position or associated systems; they may trigger together due to shared wiring or sensor failures.
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