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Hi i am new to cars and this box is loose. Where does it come and what does it do? It has a few loose cables atached looks like its a positive and negative

Nissan sentra 1600 1999

  • Welcome to Motor Vehicle Maintenance & Repair! Oct 1 '18 at 17:16

That is a relay, could be for horn or headlights, heated rear window, fog lights, in fact anything that uses a high current.

Secure it properly.


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