Diagnostic Trouble Code Chart [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

If a trouble code is displayed during the DTC check, check the circuit listed for the code in the table below (proceed to the information listed for that DTC).

HINT:

When DTC B1650/32 is detected as a result of troubleshooting for the airbag system, perform troubleshooting for the occupant classification system as shown in the chart below.

OCCUPANT CLASSIFICATION SYSTEM

DTC Code	Detection Item	Passenger Airbag ON/OFF Indicator (OFF indicator)	See
B1771	Passenger Side Buckle Switch Circuit Malfunction	ON	Refer to DTC B1771: Passenger Side Buckle Switch Circuit Malfunction [08/2013 - ]
B1782	Rear Occupant Classification Sensor LH Circuit Malfunction	ON	Refer to DTC B1782: Rear Occupant Classification Sensor LH Circuit Malfunction [08/2013 - ]
B1783	Rear Occupant Classification Sensor RH Circuit Malfunction	ON	Refer to DTC B1783: Rear Occupant Classification Sensor RH Circuit Malfunction [08/2013 - ]
B1787	Rear Occupant Classification Sensor LH Collision Detection	ON	Refer to DTC B1787: Rear Occupant Classification Sensor LH Collision Detection [08/2013 - ]
B1788	Rear Occupant Classification Sensor RH Collision Detection	ON	Refer to DTC B1788: Rear Occupant Classification Sensor RH Collision Detection [08/2013 - ]
B1790	Center Airbag Sensor Assembly Communication Circuit Malfunction	ON	Refer to DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction [08/2013 - ]
B1793	Occupant Classification Sensor Power Supply Circuit Malfunction	ON	Refer to DTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction [08/2013 - ]
B1794	Open in Occupant Classification ECU Battery Positive Line	ON	Refer to DTC B1794: Open in Occupant Classification ECU Battery Positive Line [08/2013 - ]
B1795	Occupant Classification ECU Malfunction	ON	Refer to DTC B1795: Occupant Classification ECU Malfunction [08/2013 - ]
B1796	Sleep Operation Failure of Occupant Classification ECU	ON	Refer to DTC B1796: Sleep Operation Failure of Occupant Classification ECU [08/2013 - ]