Source Voltage Drop

-CIRCUIT DESCRIPTION

The airbag system is equipped with a voltage-increase circuit (DC-DC converter) in the center airbag sensor assembly in case the source voltage drops.

When the battery voltage drops, the voltage-increase circuit (DC-DC converter) functions to increase the voltage of the airbag system to normal voltage.

The diagnosis system malfunction display for this circuit is different to other circuits - when the airbag warning light remains lit up and the diagnostic code is a normal code, source voltage drop is indicated.

Malfunction in this circuit is not recorded in the center airbag sensor assembly, and approx. 10 seconds after the source voltage returns to normal, the airbag warning light automatically goes off.

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