B009DRight Side Restraints Sensor 4
- Generic OBD-II code · Body
- How the car detects it
- B009D opens the second half of the right-side sensor row, after B0096 to B0098. No carmaker documents this code publicly; Mitsubishi stops its right row at the C-pillar sensor B0098, and Honda's Fit and HR-V use only two side sensors per side. What a failing side satellite means in practice is shown by FCA recall 19V-449: on 2019 Jeep Cherokees the restraint controller could lose contact with acceleration sensors, which lit the airbag lamp and risked late or no deployment, so the sensors were replaced. Bosch's PSI5-linked SMA773 is an example of such a satellite, measuring two axes up to 60 g. A stored B009D therefore means the module has lost or rejected a fourth right sensor; its location comes from the maker's documentation. The airbag warning lamp stays lit.
- What you may notice
- Airbag warning lamp on
- Right side impact detection in the area of that sensor is weaker
- Safety note: airbag system; disconnect the battery and keep the wait time before work on sensors, specialist workshop only
- Likely causes
- LikelyCommunication with the fourth right sensor lost through wiring, plug or sensor fault
- PossibleInternal fault of the fourth right crash satellite
- RareAirbag module coded for a sensor layout the vehicle does not have
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.