Diagnostic Trouble Code Table

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

Occupant classification system

DIAGNOSTIC TROUBLE CODE TABLE

DTC No.	Detection Item	Trouble Area	Passenger Airbag ON / OFF Indicator (OFF Indicator)
B1771	Passenger Side Buckle Switch Circuit Malfunction	No. 1 seat wire Front seat inner belt assembly RH (Buckle switch RH) Occupant classification ECU	ON
B1772	Seat Position Sensor Circuit Malfunction	No. 1 seat wire Seat position sensor Occupant classification ECU	ON
B1773	Belt Tension Sensor Circuit Malfunction	No. 1 seat wire Front seat outer belt RH (Belt tension sensor) Occupant classification ECU	ON
B1774	Pressure Sensor Circuit Malfunction	No. 1 seat wire Front seat cushion assembly (Occupant classification sensor) Occupant classification ECU	ON
B1775	Pressure Sensor Power Source Circuit Malfunction	No. 1 seat wire Front seat cushion assembly (Occupant classification sensor) Occupant classification ECU	ON
B1776	Seat Belt Tension Sensor Power Source Circuit Malfunction	No. 1 seat wire Front seat outer belt RH (Belt tension sensor) Occupant classification ECU	ON
B1790	Center Airbag Sensor Assembly Communication Circuit Malfunction	No. 1 seat wire Floor wire Occupant classification ECU Center airbag sensor assembly	ON
B1795	Occupant Classification ECU Malfunction	Occupant classification ECU	ON
B1797	Calibration Malfunction	There is no malfunction if this DTC does not recur after occupant classification system zero point calibration is performed. Front seat cushion assembly (Occupant classification sensor)	ON