Ah...Why
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Junior Member
Joined: Nov 2002
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From: Southeast Iowa
Car: 2000 Monte Carlo SS
Engine: 3.8 V-6
Ah...Why
Hey, I was wondering why it would be benefitial to wire in a relay when hooking up my foglights. What does a relay do? and how do you do it.
Since I am not an electrical engineer:sillylol: :sillylol:
Since I am not an electrical engineer:sillylol: :sillylol:
Supreme Member
Joined: Jun 2002
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From: Welland, Ontario, Canada
Car: 85 Monte Carlo SS...
Engine: T.P.I L98.
Transmission: TH350
Axle/Gears: 3:73 Posi
The relay will keep you from overloading either the lights or any other system, like the on/off switch. I would definatley use one. It's not hard to wire up and will save you alot of headaches in the future.
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Joined: Jul 1999
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From: Tulsa, OK
The main reason is going to be safety. Not using a relay means you're running hot or switched hot wires all over the car. Lots of potential problems there!
When you use a relay, the only hot wire is from the battery through the relay to the fogs. You may have a small hot wire from the switch to the relay but there's a lot less juice flowing through that wire than one running a pair of lights. If a wire ever rubs through on any of those ground wires, you don't pop fuses and/or start fires, things just don't work. If one breaks or comes loose it's a lot easier to find and diagnose.
When you use a relay, the only hot wire is from the battery through the relay to the fogs. You may have a small hot wire from the switch to the relay but there's a lot less juice flowing through that wire than one running a pair of lights. If a wire ever rubs through on any of those ground wires, you don't pop fuses and/or start fires, things just don't work. If one breaks or comes loose it's a lot easier to find and diagnose.
Appreciate it-
