Body, generic

B00B5 Driver Seat Track Position Restraints Sensor

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B00B5 reports a fault of the driver seat track position sensor, which tells the airbag module whether the seat is pushed far forward toward the steering wheel. FCA uses it with exactly this meaning: GPOP tech tips for the Dodge Dart (PF), Jeep Cherokee (KL) and Chrysler 200 (UF) name B00B5-13, an open circuit, among codes to clear with engineering before replacing the restraint controller, and a 2024 tip for the Pacifica and Voyager (RU) asks for wiring, plug and low voltage checks first. Allegro describes the usual hardware, a two-wire Hall switch that the steel track shields from a magnet as it passes, giving zones. Honda lowers driver airbag force in the forward zone. Saab 9-3/9-5 file this sensor as B0084 and then disable the second airbag stage. The airbag lamp lights.

Likely causes

Open circuit or bent/corroded pins in the seat harness to the track sensor (FCA subtype -13)
Sensor loose or wrongly positioned on the seat track, so the Hall switch no longer sees the track edge
Low system voltage (FCA asks to check this before replacing the controller)
Internal fault of the Hall-effect seat track sensor

Symptoms

  • Airbag warning lamp on
  • Driver airbag may fire without seat position adjustment (e.g. second stage locked out)
  • Safety note: airbag system; unplug the seat and sensor connectors only de-energised; after replacing the sensor check its position output/calibration, specialist workshop only

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€50–400
Time0.5–2 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

driver seat track sensorsrs seat wiringsrs control module

Related codes

B00B6B00C5B0084B00A0

References: static.nhtsa.gov, static.nhtsa.gov, static.nhtsa.gov, allegromicro.com.