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Fog light wiring question

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Old 07-12-2010, 06:21 PM   #1
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Fog light wiring question

Hello all
First of all, sorry for creating another thread about this. I found it earlier and now I can't find the same thread again after searching a few places.
Anyway, I just bought a cheap set of fog lights and was wiring them up when i found the thread on here about using a fuse tap to power them. My question is, if the fuse slot is only powered with the ignition on, do I still need the relay? I suppose this sounds stupid but it made sense to me, it seemed kind of redundant to use both. Thanks
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Old 07-13-2010, 10:06 AM   #2
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seems like the relay would be redundant to the fuse slot.
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Old 07-13-2010, 10:13 AM   #3
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It depends on the rating of the fuse you're tapping. Don't exceed its reting(tapped circuit load+fog lights=less than fused circuit). If the switch you are using can handle the amps of the entire circuit, you don't need a relay at all.
Don't put in a bigger fuse either. You'll fry the wires/truck sooner or later.
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Old 07-13-2010, 10:28 AM   #4
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Here's the thread you want.

http://www.tacomaworld.com/forum/2nd...0-tacomas.html
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Old 07-13-2010, 10:51 AM   #5
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The fuse you're tapping is likely just a "control" signal. The relay will handle the amps for the lights. I'd recommend using a relay...redundant relays are ok and typical practice. It's safer than exceeding the current capability of the existing wire.
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Old 07-13-2010, 11:04 AM   #6
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Quote:
Originally Posted by larryde09 View Post
The fuse you're tapping is likely just a "control" signal. The relay will handle the amps for the lights. I'd recommend using a relay...redundant relays are ok and typical practice. It's safer than exceeding the current capability of the existing wire.
+1 I tapped into one of the low beam fuses. I think it was 10 amp. Very good advice to use the relay.
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Old 07-13-2010, 11:19 AM   #7
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use the relay
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Old 07-13-2010, 01:46 PM   #8
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Alright I'll go get a relay too. I already got the fuse taps. Thanks guys!
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Old 07-13-2010, 01:59 PM   #9
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Quote:
Originally Posted by larryde09 View Post
The fuse you're tapping is likely just a "control" signal. The relay will handle the amps for the lights. I'd recommend using a relay...redundant relays are ok and typical practice. It's safer than exceeding the current capability of the existing wire.
100% true.
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