B00B4Driver Seat Occupant Classification Sensor E
- Generic OBD-II code · Body
- How the car detects it
- B00B4 is the fifth and last driver seat classification sensor. No carmaker documents the code publicly. A fifth input need not weigh anything: IEE's BodySense uses capacitive sensing in the seat surface, placed over the heater mat, under the cover and on top of the foam, and tells a child restraint from a seated person whatever the belt tension, posture, weight or height; IEE says the vehicle maker does not have to calibrate it and that it serves the FMVSS 208 advanced airbag rules. Other designs add a belt tension sensor so that a tightly cinched child seat is not taken for a heavy adult. Whether E stands for such a field sensor, a mat or another load cell is the maker's decision. When B00B4 is stored, the airbag lamp is lit and that input is ignored.
- What you may notice
- Airbag warning lamp on
- Possible related faults of the seat heater on the same seat
- Safety note: airbag system; work on seat and sensor plugs only de-energised; after replacing a sensor or trim follow the maker's calibration, specialist workshop only
- Likely causes
- LikelyOpen or poor contact in the seat harness or plug to input E
- PossibleDamaged seat heater or trim where the capacitive electrode shares its layer
- RareInternal fault of the fifth classification sensor or its electronics
- 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.