DTC B1660/43 Passenger Airbag ON / OFF Indicator Circuit Malfunction: Description

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and the front passenger seat belt warning light.

This circuit indicates the operation condition of the front passenger airbag assembly, the front passenger side front seat side airbag assembly and passenger side seat belt pretensioner.

DTC B1660/43 is set when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	DTC Detecting Conditions	Trouble Areas
B1660/43	Center airbag sensor assembly detects line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in passenger airbag ON/OFF indicator circuit for 2 seconds Front passenger seat belt warning light malfunction Center airbag sensor assembly malfunction	Instrument panel wire Front passenger seat belt warning light (Passenger airbag ON/OFF Indicator) Center airbag sensor assembly