Impact Sensor: Description and 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.

Three sensors are mounted in the vehicle. Their locations are as follows:
- a primary crash front air bag sensor and bracket at the RH front radiator support
- a primary crash front air bag sensor and bracket at the LH front radiator support
- a safing sensor inside the air bag diagnostic monitor





- the safing and one of the primary crash sensors must be activated simultaneously to inflate the air bag