Relays.

Pen_Two · Mar 6, 2010

I just put a few lights on my roof, and I have a quick question about the relays. The one wire is supposed to go to the high beam, to act as a signal to tell the relay to switch from open or close. If I run that wire to the battery terminal instead, will it always draw from battery even when the car is in the off position of the ignition?

Tim_MN · Mar 6, 2010

Pen_Two said:
...one wire is supposed to go to the high beam, to act as a signal to tell the relay to switch ...

Hook that wire to the parking lamps if you want the roof lights to stay on with the headlight hi beams

whitexj98 · Mar 7, 2010

Yes it will always be pulling power but it will just be siting at the relay waiting for you to ground it, thus powering the relay. What I do on relays is just splice a wire off your main power wire going to the relay. Less wiring that way.

Pen_Two · Mar 7, 2010

whitexj98 said:
Yes it will always be pulling power but it will just be siting at the relay waiting for you to ground it, thus powering the relay. What I do on relays is just splice a wire off your main power wire going to the relay. Less wiring that way.

Will that cause a steady constant draw? If so, will it ultimately rape my battery over night?

whitexj98 · Mar 7, 2010

No it won't cause a draw, like I said it just sits there at the terminal.

Pen_Two · Mar 7, 2010

Alright, thanks for the info on that. I'm not too keen on the way a relay operates once it's all wired into the circuit.

whitexj98 · Mar 7, 2010

heres some schooling,

http://www.autoshop101.com/trainmodules/relays/101.html

Relays.

Pen_Two

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Tim_MN

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whitexj98

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Pen_Two

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whitexj98

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Pen_Two

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whitexj98

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