Obdaryn

B0075Second Row Right Seat Belt Pretensioner Deployment Control

  • Generic OBD-II code · Body
How the car detects it
B0075 is the right-hand counterpart of B0073: the pretensioner at the second row's right outer seat. Mitsubishi lists it as PRE-TEN REAR RH with the J2012 title and tests the circuit whenever the ignition is on; byte 11 stands for a short to ground and 13 for an open circuit, while further bytes cover shorts to power, crossed wires, high resistance or a configuration mismatch, each after 2 seconds. Toyota names B007512, a short to battery, in its 2022 Tundra bulletin about the Qi charger. Rear retractor wiring passes through seat and trim areas that are opened during interior work, which makes a disturbed plug the usual suspect. With the code active, the airbag lamp is on and the right rear passenger may not be pulled back into the seat in a crash.
What you may notice
  • Airbag warning lamp on
  • Right rear occupant without belt pretensioning in a crash
  • Safety note: the rear retractor contains a pyrotechnic charge; work on it only de-energised and leave it to a specialist workshop
Likely causes
  • LikelyPlug at the right rear retractor not fully latched after interior work
  • PossibleChafed lead to the right rear pretensioner (short to ground or power)
  • RareInterference from added electronics, fixed by an ECU update (Toyota Tundra 2022)
  • RareInternal fault of the right rear pretensioner
Repair
Workshop only · Usually a job for a workshop.Typical cost: €80 – €600

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.