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8B-4 SUPPLEMENTAL RESTRAINT SYSTEM(SRS)
FUNCTION DESCRIPTION
Air Bag Control Unit (AC4)
Air bag control unit (AC4) is installed on the center portion of
the front floor tunnel.
It is a central control unit that control all functions and determines
whether deploy the air bag or not with the collision signal from
the built-in accelerometer sensor and has function of diagnosing
system defects.
Internal air bag control unit is consisted as follows;
Microprocessor
ASICs (Upper side ASIC & lower side ASIC)
Accelerometer sensor
Arming sensor
System energy backup condenser
Squib energy backup condenser
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