Mercury 9L8Z-78042D94-A Module - Air Bag

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Different crashes are responded to in different ways by airbags which are found in all models to protect both the driver and front seat passenger. The control of airbags is done by electronic sensors located on the steering wheel, passenger side dash, and inside front seatbacks. Troubleshooting may involve checking switch functionality, wiring, and fuses. Signals are sent through warning lights or sounds by the Restraints Control Module when problems arise within the system. Working near system components requires the deactivation of this system. Precautions must be observed with airbag modules while welding equipment should never be used unless electrical connectors have been removed. Return disposed of modules to repair facilities.

Airbags are typically located on the steering wheel, passenger side of the dash, and within front seat backs. Some models also feature seat belt pre-tensioners.