Mazda MX-5 1990 Workshop Manual page 713

AIR BAG SYSTEM
T
COMPONENT DESCRIPTIONS
Component Function Remarks
Air bag system Lamp illuminates or flashes when problem or fail- Located in instrument cluster
warning lamp ure occurs in air bag system
Air bag module Deploys air bag when current flows to integrated Air bag fills to volume of about
igniter 60 liters (15.9 US gal, 13.2 Imp gal)
Backup battery Provides sufficient power to operate air bag sys-
tem if battery power lost during crash
Clock spring Ensures uninterrupted electrical circuit to air bag One of part of combination switch
connector module while allowing rotation of steering wheel
Crash sensor Detects frontal impact and completes circuit to
send signal to air bag module
Two types of sensors used
Diagnostic Monitors electrical system components and circuit
module
Indicates problem or failure in system by
illuminating air bag system warning lamp
05UOTX-347
T-131