LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

Fog light rewire??!!

Old 05-02-10, 01:14 AM
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ViPCeo
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Default Fog light rewire??!!

Has anyone here with a ls430 done the fog light rewire so it comes on with parking/running lights or just without headlights period??? I 've been thinking about doing this for a few weeks now but just wanted to kno if anyone has done it, thanx in advance....
Old 05-02-10, 01:18 PM
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Bdragon007
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I'm not sure if it's similar or not but you can do it on the 2gen GS, it's involve hook up additional relay at the Engine fuse box.
Old 05-02-10, 02:42 PM
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Dajap
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I'm interested in this mod as well. We will just have to wait and see who chimes in.
Old 05-02-10, 03:11 PM
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Tee
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Here is how it is done.

The correct way is change to coil side of the stock relay from low beam to the parking light/ignition/separate switch however you want it on. this way no additional relay, and you don't have to run any wires from the fogs to inside the car.

--REV-01
Old 05-04-10, 03:17 PM
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Originally Posted by Tee
Here is how it is done.

The correct way is change to coil side of the stock relay from low beam to the parking light/ignition/separate switch however you want it on. this way no additional relay, and you don't have to run any wires from the fogs to inside the car.

--REV-01
Im not sure what he's saying any pics??? Or maybe jus a lil more explaining, thanx in advance....
Old 05-04-10, 09:38 PM
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Originally Posted by electro992
The stock fogs are wired though the headlight switch, so they only receive power when the headlights are on. You need to bypass the headlight switch by hooking up the fog relay to a source that is always on or switched with ignition.
If i can find the relay that wouldnt be a problem, i did it on all my carz, 96 max, 96 q45, 2002 max, 01 i30, wanted to do it to my 91 ls400 but didnt get around to it, i check the engine bay for foglight relay but had no luck, maybe i missed it idk...
Old 05-04-10, 10:57 PM
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just be careful...had some dude in the first gen ls forums post up unclear diy..one of my customer try it himself and fried the circuit...it went from a 60 bux rewire job to a 60 an hour troubleshoot good luck.
Old 05-05-10, 05:20 AM
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sojah
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i just paid a stereo shop an hours labor to do this and they put in a separate switch near my smart key buttons and it looks very clean.
Old 05-05-10, 07:20 AM
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Originally Posted by sojah
i just paid a stereo shop an hours labor to do this and they put in a separate switch near my smart key buttons and it looks very clean.

Hmm may look clean but Rev's way is cleaner. He did my LS4 and maybe I should have him do my 430 now. Add that to my next visit Rev
Old 05-05-10, 07:25 AM
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Originally Posted by REV-01
just be careful...had some dude in the first gen ls forums post up unclear diy..one of my customer try it himself and fried the circuit...it went from a 60 bux rewire job to a 60 an hour troubleshoot good luck.
Wheres the relay for the fogs located??
Old 05-05-10, 04:37 PM
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^i don't know right now to be honest since no one ask me to do it yet...i can figure out once people ask.
Old 05-05-10, 07:25 PM
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Rev,

I think many of us here will appreciate it if you would take the time and figure it out. Would it help if I can ask my friend for a wire diagram?
Old 05-06-10, 03:44 AM
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^^^ Yes that would help, jus for the fog relay tho, thanx...
Old 05-06-10, 02:51 PM
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i understand what you guys saying...

but i don't have the diagram or anything....what i mean is if someone ask me to do it on the island i can figure it out without any notes.

i can get customer's car done really fast...however at the end of the day just wanna take it easy...

kinda like cooks don't like to cook at home you know what i mean?
Old 05-09-10, 12:44 PM
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StanVanDam
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Attached is the 2005 LS430 Front Fog Light Electrical Wiring Diagram (EWD)
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File Type: pdf
Front Fog Light.pdf (52.2 KB, 559 views)

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