Body, generic

B00D1 Passenger Seat Belt Indicator

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B00D1 covers the passenger seat belt warning. Unlike the driver warning, it only makes sense if the car knows the seat is occupied, so it leans on occupant sensing. No carmaker documents the code. Ford's 2014 F-150 uses the passenger sensing system to decide who gets Belt-Minder reminders: above 6 mph and after 1 to 2 minutes, lamp and chime come on for six seconds every 25 seconds for about five minutes. Honda's 2013 Fit lights the passenger warning about 6 s after ignition-on but not for a child or slight adult whom the weight sensors miss. Mazda saw the passenger warning come on for an empty seat holding a laptop or phone. FMVSS 208 S7.5 requires a passenger warning visible to the driver from September 2028. B00D1 points to the lamp side, not the buckle.

Likely causes

Open or shorted circuit to the passenger belt lamp or its display segment
Lamp, LED or display unit for the passenger warning failed
Occupancy information missing or wrong, so the warning logic cannot run

Symptoms

  • No passenger belt reminder, or a reminder for an empty seat
  • Airbag or restraint warning lamp may be on
  • Safety note: passenger may ride unbelted without warning; wiring work only de-energised (ignition off, battery off, wait time), specialist workshop

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€40–500
Time0.3–2 h

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

Parts involved

passenger belt indicatorinstrument clustersrs control module

Related codes

B00D0B0052B00A0B00C0

References: fordservicecontent.com, honda.ca, static.nhtsa.gov, law.cornell.edu.