Driver Seat Potentiometer Circuit Failure
The driver seat potentiometer circuit has a fault.
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 seat position sensor isn't sending the right signal to the seat module, making it hard or impossible to adjust the driver's seat.
What the computer is actually seeing
The seat module expects a variable resistance signal between 0.5V and 4.5V based on the seat position, but it's reading a fixed value or an out-of-range signal, indicating a problem with the potentiometer or its wiring.
What a healthy reading looks like
Expected voltage from the seat potentiometer should vary between 0.5V (full back) and 4.5V (full forward) as you adjust the seat.
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. Start with visual inspection of the seat wiring and connectors for damage or corrosion. Repair any visibly damaged connectors.
- 22. Use a multimeter to measure voltage at the potentiometer while moving the seat. Confirm it varies between 0.5V and 4.5V. If it's a fixed voltage, replace the potentiometer.
- 33. Check continuity of wiring between the potentiometer and the seat module. If there's an open or short, repair the wiring.
- 44. Clear the code and test drive the vehicle to see if the fault returns. If it does, replace the seat module.
Common causes
- Wiring harness damaged or shorted
- Faulty seat potentiometer
- Corroded connectors
- Moisture intrusion in seat electronics
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
Yes, but you won't be able to adjust the driver's seat, which can affect comfort and driving position.
Will this code come back after clearing it?
If the underlying issue isn't resolved, the code will likely return.
Why does this code show up alongside B1001?
B1001 relates to the seat motor circuit, which may also fail if there's a power issue affecting multiple seat adjustments.
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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