System Outline
The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.When the ignition SW is turned to ACC or ON position, the current from the ACC fuse flows to center airbag sensor assembly TERMINAL ACC. Only when the ignition SW is ON does the current from the IGN fuse flow to center airbag sensor assemblyTERMINAL IG2.
If case an accident occurs while driving, when the frontal impact exceeds
a predetermined level, the current from the ACC or IGN fuse flows to center airbag sensor assembly TERMINALS D+, P+, PL+, PR+ to airbag squibs and pretensioners to center airbag sensor assembly TERMINALS D-, P-, PL-, PR- to TERMINALS E1, E2 or BODY GROUND to GROUND.
The current flows to the airbag squibs and pretensioners, and operates the airbag.
The airbag stored in the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored in the front passenger's instrument panel is instantaneously expanded to soften the shock to the front passenger.
The pretensioners ensure the seat belt restrainability.