Impact Sensor: Description and Operation

OPERATION
The sensor is an electrical switch which operates as follows:
- It 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.
- The safing and one of the primary crash sensors must be activated simultaneously to inflate the air bag.