Airbag Driver Seat Position Sensor Circuit Range/Performance Problem
The airbag control module is detecting an issue with the driver seat position sensor.
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 seeing that the driver seat position sensor is giving readings that don’t make sense, like being stuck or out of range. This could mean your seat or sensor is misaligned or damaged.
What the computer is actually seeing
The airbag control module expects the driver seat position sensor to provide readings within a specific range while the seat is adjusted. If it receives a voltage reading of 0 volts (no signal) or above 5 volts (out of range), it triggers this code.
What a healthy reading looks like
Driver seat position sensor normally outputs a voltage between 0.5V and 4.5V corresponding to seat position from front to back.
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.
- 1Check for any loose or damaged connectors at the driver seat position sensor.
- 2Inspect the wiring for pinches or breaks between the seat position sensor and control module.
- 3Using a multimeter, measure the voltage at the driver seat position sensor with the seat adjusted in several positions. Check if the voltage stays between 0.5V to 4.5V. If not, replace the sensor if out of range or recycle the connections if not receiving a signal.
Common causes
- Faulty driver seat position sensor
- Damaged wiring or connectors in the seat position sensor circuit
- Improper installation after seat replacement or adjustment
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderately severe; while you can drive, the airbag may not deploy correctly in an accident.
Will this code come back after clearing?
If the underlying issue isn't fixed, it will likely return.
Why does this code pair with other B100 codes?
They relate to similar issues in the seat positioning sensors, indicating multiple points of failure in the airbag system.
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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