Electrical System

Electrical System
The air bag system is powered directly from the battery. The system can function with the ignition switch in any position, including OFF and LOCK. The system can also function when the driver's seat is unoccupied. The electrical system performs three main functions:
- Detects an impact.
- Switches electric power to the igniter.
- Monitors the system to determine readiness.

The electrical system components include:
- Electronic diagnostic monitor.
- Air bag system readiness indicator lamp.
- Wiring harness.
- Sensors.
- Igniter Assembly.
- Backup power supply.

Sensors
The sensor assembly is an electrical switch which reacts to impacts according to direction and force. It discriminates between impacts that require air bag inflation and impacts that do not require air bag inflation. When an impact occurs that requires air bag inflation, the sensor contacts close, completing the electrical circuit necessary for system operation.

Five sensors are mounted in the vehicle. Their locations are as follows:
- A dual sensor below the center of the radiator support.
- At the RH and LH sides of the radiator support.
- At the LH cowl side in the passenger compartment.

At least two sensors, one safing, one front, must be activated to inflate the air bag.







Air Bag Firing Circuit Diagram