B00C7Passenger Seat Occupant Position Sensor A
- Generic OBD-II code · Body
- How the car detects it
- B00C7 opens the row of five passenger seat position sensors, a code absent from all public carmaker documents. The passenger seat is where position sensing reached series cars: Honda's OPDS puts sensors in the passenger seat back that judge sitting height and whether a child leans toward the door, and then blocks the seat-mounted side airbag and lights a side airbag off indicator. Honda's 1998 patent describes the principle: band electrodes in the back cover are fed with a high-frequency signal, and a nearby body raises the current, so shoulders, head and a door-side lean can be told apart; the unit also diagnoses its own faults. Honda asks for the system to be initialised after seat-back parts are changed. Whether a maker maps such a sensor to A is not documented. B00C7 lights the airbag lamp.
- What you may notice
- Airbag warning lamp on
- Side airbag off indicator lit although the passenger sits upright
- Safety note: side airbag may be wrongly enabled or blocked; work on the seat back only de-energised and initialise the system afterwards, specialist workshop only
- Likely causes
- LikelyPosition system not initialised after seat cover, seat back sensor or control unit replacement
- PossibleElectrode or lead in the seat back damaged, for instance by a non-original seat cover or repairs
- RareDamp seat back or objects pressed against it
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €1,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.