B00C1Passenger Seat Occupant Classification Sensor B
- Generic OBD-II code · Body
- How the car detects it
- B00C1 belongs to input B of the passenger seat classification. It is unpublished as such, but Toyota shows why a seat can carry several such sensors: on 2012–2013 Camry, Prius c and Yaris and 2013 Avalon, a left and a right weight detector sit between seat frame and rails. Their readings decide whether the passenger bag is armed, and they also serve as collision sensing. In campaign F0B (about 753,200 US cars) Toyota found that some seating habits or rough roads were taken for a rear impact, lighting the airbag lamp and AIR BAG OFF; dealers fitted new sensors, torqued them to 30 N·m, zeroed the system and verified its sensitivity. Whether B stands for such a right-hand cell is not documented. With B00C1 the airbag lamp is on.
- What you may notice
- Airbag warning lamp on
- Passenger airbag off lamp lit although an adult is seated
- Safety note: passenger airbag status may be wrong; disconnect seat sensors only de-energised, keep tightening torques and run the zero-point calibration with the scan tool, specialist workshop only
- Likely causes
- PossibleLoad cell B damaged or drifting, for example after the seat was forced or dropped
- PossibleSeat pan or sensor bolts fitted under tension or with the wrong torque, preloading the cell
- PossibleZero-point calibration not done after sensor or seat work
- RarePoor contact at the plug of sensor B
- 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.