Body, generic

B00C2 Passenger Seat Occupant Classification Sensor C

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B00C2 names the third classification input of the passenger seat. No carmaker documents it, and nobody has tied the letter to a known part. Another common sensor type besides load cells is a mat in the cushion. Hyundai extended the cover of the OCS mat in 2006–2011 Accent cars to 15 years with unlimited mileage: the mat should spot child seats and small occupants, and a faulty one could let the bag fire for a child; the lamp then lights with Hyundai's own codes B1447/B1448. Subaru tells technicians for 2014–2016 Forester that spilled drinks, rain through an open window or high humidity reaching the mat can set its occupant detection codes B1760 and B1650. Should C be such a mat, moisture and wear would be the prime suspects. A stored B00C2 lights the airbag lamp.

Likely causes

Liquid, rain or condensation soaked into the seat cushion and sensor
Sensor mat cracked or worn from years of getting in and out
Damaged lead or plug between mat and classification unit

Symptoms

  • Airbag warning lamp on
  • Fault may come and go with weather or after cleaning the seat
  • Safety note: a child on the passenger seat may not be detected; replace mats only as the maker's kit with the seat de-energised, then recalibrate, specialist workshop only

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–1,200
Time1–4 h

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

Parts involved

passenger classification sensor csrs seat wiringoccupant classification module

Related codes

B00C1B00C3B00A0B00B2

References: static.nhtsa.gov, static.nhtsa.gov.