Safing Sensor: Description and Operation

The sensor 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.

Three sensors are mounted in the vehicle. Their locations are as follows:
- A crash sensor at the RH fender apron.
- A crash sensor at the LH fender apron.
- A safing sensor at the top of the dash panel in the engine compartment.

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