Component | Function
Air bag diagnosis sensor unit | Detects a collision and supplies power supply for deployment to air bag module and pre-tensioner seat belt.
Air bag module

- Driver
- Passenger
- Front side
- Side curtain

Receives signal from air bag diagnosis sensor unit and deploys air bag.
Front seat belt pre-tensioner | Receives signal from air bag diagnosis sensor unit and deploys pre-tensioner seat belt.
Seat belt buckle switch | Controls deployment timing depending on the seat belt condition that is fastened or unfastened.
Crash zone sensor | Transmits signal to air bag diagnosis sensor unit when a frontal collision occurs.
Satellite sensor (LH/RH) | Transmits signal to air bag diagnosis sensor unit when a side collision occurs.
Occupant Classification System control unit | Detects front passenger seat occupant and judges whether or not deploys front passenger seat air bag.
Combination meter (air bag warning lamp) | Indicates air bag malfunctioning and deployment by blinking and illuminating air bag warning lamp.
Front passenger air bag OFF indicator | Indicates whether or not front passenger air bag is in activation mode subject to the judgement by Occupant Classification System control unit.
Combination switch (spiral cable) | Supplies power supply to driver air bag module on steering wheel.