B00C0Passenger Seat Occupant Classification Sensor A
- Generic OBD-II code · Body
- How the car detects it
- B00C0 flags the first of up to five classification inputs in the front passenger seat. Their job comes from FMVSS 208: the passenger bag must stay off when a 12-month dummy sits in a listed child restraint or a newborn dummy lies in a car bed, yet it must be live for a 5th percentile woman, and a yellow PASSENGER AIR BAG OFF lamp reports the suppressed state. Honda's 2013 Fit shows a typical weight solution: sensors in the seat switch the bag off at 29 kg or less, the off lamp may flicker when the load sits near that limit, and bags hanging from the seat back or a rear passenger pushing on it can upset the reading. No carmaker publishes B00C0, and which sensor the letter A names is left open. The airbag lamp lights and classification falls back to a safe default.
- What you may notice
- Airbag warning lamp on
- Passenger airbag off lamp shows a state that does not match the occupant
- Safety note: passenger airbag may be wrongly enabled or disabled; seat and sensor plugs only de-energised, recalibrate the classification after repairs, specialist workshop only
- Likely causes
- LikelyLoose plug or chafed wire to input A under the passenger seat, often after the seat was removed
- PossibleClassification sensor A itself delivers no or an implausible signal
- RareObjects under the seat, items hanging on the seat back or pressure from the rear disturbing the measurement
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.