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B1512moderate severity✨ AI-generated

Power Seat Position Input Circuit Short to Ground

There’s a short circuit in the power seat position input 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 power seat position sensor detects where the seat is located, and if the wiring is shorted to ground, it confuses the computer about the position, which can prevent seat adjustment.

What the computer is actually seeing

The computer sees a continuous low voltage signal instead of the expected variable voltage. Normally, you'd expect a signal around 0.5V to 4.5V depending on the seat position.

What a healthy reading looks like

Voltage at the seat position sensor should range from 0.5V (full back) to 4.5V (full forward).

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.

  1. 11. Inspect the wiring and connectors related to the seat position sensor for any visible damage or corrosion.
  2. 22. Check the voltage at the seat position sensor with the seat in a neutral position. Expect 2.5V as a midpoint. Is it at a continuous low voltage? If yes, proceed to step 3. If no, replace the sensor.
  3. 33. Disconnect the seat position sensor and check the output voltage at the connector with the key on but the engine off. Should be within expected values as above. If it's not, check the harness for shorts to ground.
  4. 44. If a short is found, trace and repair the damaged wiring. If the sensor outputs normal readings, replace the seat position sensor.

Common causes

  • Damaged wiring harness in the seat area
  • Corroded connectors
  • Faulty seat position sensor

Typical repair cost

$$

Related codes

Frequently asked questions

Is it safe to drive with this code?

Yes, you can still drive the vehicle, but the power seat may not adjust.

Will this error come back after clearing?

It may return if the underlying issue isn’t fixed.

Why did this code appear after a seat adjustment?

Moving the seat can stress the wiring or connectors, leading to a short if they are damaged.

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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