2016 Subaru BRZ Series.HyperBlueFACTORY OEM SERVICE PROCEDURE

Occupant Detection System DTCS

OCCUPANT DETECTION SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description
B1650
  • Occupant detection sensor is faulty.
  • Occupant detection control module is faulty.
  • Occupant detection harness is faulty.
  • Rear airbag harness RH is faulty.
  • A/B MAIN fuse (15 A) is blown.
B1655
  • The buckle switch RH circuit is open, shorted, or short-circuited to ground.
  • Occupant detection system is faulty.
  • Occupant detection harness is faulty.
B1760
  • Occupant detection sensor is faulty.
  • Open circuit in the occupant detection sensor, short between terminals, shorted to power supply, and shorted to ground.
  • Open circuit in seat heater.
  • Occupant detection control module is faulty.
B1761
  • Liquid coating abnormality is detected in occupant detection sensor.
  • Occupant detection sensor is faulty.
  • Occupant detection control module is faulty.
B1771
  • Passenger's seat buckle switch is faulty.
  • Passenger's buckle switch circuit is open, shorted, or short-circuited to ground.
  • Occupant detection system is faulty.
  • Occupant detection harness is faulty.
B1795 Occupant detection control module is faulty.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.