Explorer 2WD V6-245 4.0L SOHC VIN E EFI (1997)
Impact Sensor: Description and Operation
PURPOSE
The front air bag sensors are electrical switches that react to frontal impacts according to direction and force. The primary sensors measure the crash
severity.
OPERATION
Primary crash sensors are "hard-wired" to the air bags and operate in the following manner:
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They discriminate between impacts that require air bag inflation and impacts that do not.
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When an impact occurs that requires air bag inflation, the sensor contacts close, completing the electrical circuit necessary for system
operation.
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The safing sensor and one primary crash sensor must be activated simultaneously to inflate the air bag.
