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Splicing my fogs

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Old 10-15-2009, 03:19 PM   #1
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Exclamation Splicing my fogs

so i am reading all the write ups on the DIY oem fog lights, and i am trying to splice my fogs into my low beam headlights so that they go off when i put on my high beams. but keep blowing the bulbs when cutting them on but the fogs do work spliced into the low beam wire, just blowing my headlight. can any one help me figure something out.
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Old 10-15-2009, 03:21 PM   #2
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renamed the title and moved to the lighting section so you can get better help
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Old 10-15-2009, 03:24 PM   #3
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thanks
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Old 10-16-2009, 06:06 PM   #4
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You can not hook the fogs directly to the headlamp circuit. You'll overload it and blow fuses all day long.

You need to use a relay and power them off of the battery, using the low beams (or parking lamps) as the trigger source for the relay.

Most 30 amp automotive relays have 4 poles....#30, #85, #86, #87.

Wire it up this way:

#30 (+) to battery with a 15 amp fuse as close to the battery as possible.
#85 (+) to low beams or parking lamps.
#86 (-) ground
#87 (+) lead to foglamps

If you want a switch to defeat the fogs completely, just place it on the signal wire (#85).
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Old 10-16-2009, 07:18 PM   #5
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hell yeah that sounds like a plan to me. Thanks! will let you know how it goes
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Old 10-30-2009, 03:56 PM   #6
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Quote:
Originally Posted by Plain Jane Taco View Post
You can not hook the fogs directly to the headlamp circuit. You'll overload it and blow fuses all day long.

You need to use a relay and power them off of the battery, using the low beams (or parking lamps) as the trigger source for the relay.

Most 30 amp automotive relays have 4 poles....#30, #85, #86, #87.

Wire it up this way:

#30 (+) to battery with a 15 amp fuse as close to the battery has possible.
#85 (+) to low beams or parking lamps.
#86 (-) ground
#87 (+) lead to foglamps

If you want a switch to defeat the fogs completely, just place it on the signal wire (#85).

gave it a try but for some reason lights arent coming on. any sugestions on what i may be missing. i did everything the way stated.
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Old 10-30-2009, 04:01 PM   #7
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did you grounded both the lights and the relay?
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Old 10-30-2009, 06:56 PM   #8
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yep. but its all good had one bad connection that i found got em working about an hour ago. great mod!
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Old 10-30-2009, 06:57 PM   #9
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Quote:
Originally Posted by Plain Jane Taco View Post
You can not hook the fogs directly to the headlamp circuit. You'll overload it and blow fuses all day long.

You need to use a relay and power them off of the battery, using the low beams (or parking lamps) as the trigger source for the relay.

Most 30 amp automotive relays have 4 poles....#30, #85, #86, #87.

Wire it up this way:

#30 (+) to battery with a 15 amp fuse as close to the battery has possible.
#85 (+) to low beams or parking lamps.
#86 (-) ground
#87 (+) lead to foglamps

If you want a switch to defeat the fogs completely, just place it on the signal wire (#85).
Thanks man this really helped me alot!
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Old 10-30-2009, 09:39 PM   #10
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Quote:
Originally Posted by prerunner05 View Post
Thanks man this really helped me alot!
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