B0182Right Front/Passenger Side Buckle Tension Sensor Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0182 appears in no J2012 list and in no public document of any carmaker, so the code cannot be verified. Its meaning overlaps B0061, the passenger belt tension sensor, and B0140. Such a sensor sits at the lower belt anchor and tells the occupant detection system how hard the belt is pulled. Delphi's patent US6605877B1 feeds the sensor and reads its data over the same two wires; a tension above a calibrated value points to a child seat strapped down tightly, and the seat weight reading is corrected by the belt load. FMVSS 208 lets carmakers switch the passenger airbag off automatically for small children, which is where this signal matters. A circuit fault leaves the module unsure whether to permit the airbag, so it lights the airbag lamp.
- What you may notice
- Airbag warning lamp lit
- Passenger airbag off indicator behaves unexpectedly with a child seat or adult in the seat
- Safety note: airbag and pretensioner plugs are close by; disconnect the battery and wait before unplugging anything
- Likely causes
- LikelyPlug at the belt anchor sensor loose, corroded or pulled off when the seat was moved
- PossibleTwo-wire lead to the occupant detection module pinched or chafed under the seat
- RareSensor electronics faulty, for instance after a crash load on the belt
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.