Diagnostic Trouble Code Chart [03/2017 - ]

WARNING: This page is about a different car, the 2018 Toyota Yaris, 2017 Toyota Yaris, and 2016 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

When DTC B1650/32 is detected as a result of troubleshooting for "Airbag System", perform troubleshooting for "Occupant Classification System" as shown in the chart below.
Use the Techstream to read and clear the DTC of the occupant classification ECU, otherwise the DTCs cannot be read and cleared.

DTC CODES FOR OCCUPANT CLASSIFICATION SYSTEM (03/2017 -)

DTC Code	Detection Item	Passenger Airbag ON/OFF Indicator (OFF)	See page
B1771	Passenger Side Buckle Switch Circuit Malfunction	ON	Refer to DTC B1771: Passenger Side Buckle Switch Circuit Malfunction [03/2017 - ]
B1780	Front Occupant Classification Sensor LH Circuit Malfunction	ON	Refer to DTC B1780: Front Occupant Classification Sensor LH Circuit Malfunction [03/2017 - ]
B1782	Rear Occupant Classification Sensor LH Circuit Malfunction	ON	Refer to DTC B1782: Rear Occupant Classification Sensor LH Circuit Malfunction [03/2017 - ]
B1785	Front Occupant Classification Sensor LH Collision Detection	ON	Refer to DTC B1785: Front Occupant Classification Sensor LH Collision Detection [03/2017 - ]
B1787	Rear Occupant Classification Sensor LH Collision Detection	ON	Refer to DTC B1787: Rear Occupant Classification Sensor LH Collision Detection [03/2017 - ]
B1790	Center Airbag Sensor Assembly Communication Circuit Malfunction	ON	Refer to DTC B1790: Center Airbag Sensor Assembly Communication Circuit Malfunction [03/2017 - ]
B1793	Occupant Classification Sensor Power Supply Circuit Malfunction	ON	Refer to DTC B1793: Occupant Classification Sensor Power Supply Circuit Malfunction [03/2017 - ]
B1794	Open in Occupant Classification ECU Battery Positive Line	ON	Refer to DTC B1794: Open in Occupant Classification ECU Battery Positive Line [07/2015 - ]
B1795	Occupant Classification ECU Malfunction	ON	Refer to DTC B1795: Occupant Classification ECU Malfunction [07/2015 - ]
B1796	Sleep Operation Failure of Occupant Classification ECU	ON	Refer to DTC B1796: Sleep Operation Failure of Occupant Classification ECU [07/2015 - ]