B00A1Occupant Position System
- Generic OBD-II code · Body
- How the car detects it
- B00A1 covers the occupant position system, which watches where a person sits rather than how heavy they are, so that an airbag can be held back when someone is too close to it. FMVSS 208 accepts this as dynamic automatic suppression (DASS): the bag must be switched off before the occupant's head, neck or upper body reach a zone beside the cover that the maker defines. No carmaker publishes B00A1 itself. Honda's OPDS shows the idea: sensors in the passenger backrest report height and lean, the side airbag is switched off while a Side Airbag Off lamp is lit, and the system needs initialising after seat-back parts or the unit are changed. Patents describe other ways, such as ultrasonic beams from the headliner or a sensor at the airbag door. A fault lights the airbag lamp.
- What you may notice
- Airbag warning lamp on
- Airbag off indicator stays on although the occupant sits upright
- Safety note: airbag system; disconnect seat and sensor plugs only de-energised; after a sensor or unit change initialise/calibrate the system, specialist workshop only
- Likely causes
- LikelySystem not initialised after seat cover, seat-back sensor or control unit replacement
- PossibleDamaged seat harness or loose plug under the seat
- PossibleFaulty position sensor or position control unit
- RareDamp seat, accessory seat covers or objects disturbing the sensors
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €1,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.