Glossary “passive seal” Definition:
Seal that has no extra springs or tension devices to help make the seal, such as the O-ring seals on valves.

Glossary “passive sensor” Definition:
Those sensors that do not generate their own voltage.

Glossary “passive test” Definition:
Diagnostic test in which the control module monitors a component or system during normal operation

Glossary “passive diagnostic test” Definition:
Vehicle computer monitors all vehicle system, circuit, or component, looking for values of voltage that fall out of a predetermined range.

Glossary “passive restraint” Definition:
Occupant restraints, such as air bags or seat belts, that operate automatically with no action required on the part of the driver or occupant, as mandated by Federal regulations to be used in all vehicles sold in the United States after 1990.

Glossary “passive restraints” Definition:
A passenger restraint (seat belt) system that automatically operates to confine the movement of a vehicle’s passengers