Headlight wiring

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sparkyspider

Member - Posts: 7

Joined: April 28, 2005

Location: United States

Posted: July 28, 2005 at 1:01 PM / IP Logged

I want to tap into my highbeam wiring. At my headlights the high beam hot is RED / w yellow stripe. I cant find that redw / YELLOW anywhere under my dash,even on the headlight switch. Why does the factory change the wire color in the harness somewhere? Anyone know how I can find my highbeam wire under my fash,( so I dont have to drill a hole in my firewall,and run a wire from the headlight itself? Its a 2003 Toyota Celica . Thanks

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Clif

Member - Posts: 46

Joined: November 30, 2004

Location: United States

Posted: July 29, 2005 at 2:08 AM / IP Logged

the use of a multimeter will help, set to VDC, then ground one lead, then look for a wire that shows voltage when you turn your high beems on and no voltage when there off.

hmmm.... was that the right wire?

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spittin2rock

Member - Posts: 22

Joined: March 29, 2004

Location: United States

Posted: August 01, 2005 at 12:20 PM / IP Logged

If you don't mind me asking why do you need to tap into your high beams. If you're trying to power something with your high beams then I would just use the fuse box

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sparkyspider

Member - Posts: 7

Joined: April 28, 2005

Location: United States

Posted: August 02, 2005 at 3:49 PM / IP Logged

I need to tap into my high beam wire , because, on a Toyota Celica, the low beams stay on when the high beams are put on,and Im installing foglights,and want to run a wire from the high beam wire to the fog relay to turn off the fogs when the high beams are put on.

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Mad Scientists

Silver - Posts: 380

Joined: February 07, 2004

Location: United States

Posted: August 06, 2005 at 12:54 PM / IP Logged

There's gonna be a wire from the passenger compartment to the engine compartment anyway.. so locate the foglight relay under the hood and trigger from the headlight wire. It's better to run as short a power wire as possible for headlights and driving lights to reduce voltage drop.

Jim

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Headlight wiring

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