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Puff Puff Pass
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Discussion Starter · #1 ·
I am going to install some LEDs in the foot well that I will have tied to the dome light. I know some of you guys on here have already done this. My question is do I need a relay and where should I tie in at? I have searched and have come up with some conflicting information, but it was all for other toyotas and not our trucks. If anyone who has already done this could chime in I would appreciate it.
 

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Cressida nut
91 Pickup (Hilux)2wd
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it's really up to you. LEDs don't draw enough power to necessitate relays, but running separate fuses and relays for them isn't a bad idea.
 

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Yeah I want it to only work when the door is open just like the dome light.
I am wanting to do the exact same thing in my Runner, I used a 3A fuse for mine because the draw was about 800mA for everything. Where did you tie into? I could not figure out for the life of me, how the dome light operates with doors open. See my thread in 4Runner section..

http://www.toyotanation.com/forum/showthread.php?t=352719

Thx ;)
 

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Puff Puff Pass
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451 Posts
Discussion Starter · #8 ·
I am really surprised no one has chimed in with a answer on this. I honestly thought this would be a cheap common mod. I already did this to my STI and it worked just fine. I just tapped into the dome light power wire and that was that. I just thought someone on here could provide a suggestion if there was a different way. I hope I have enough free time this weekend to knock it out. Damn LED's have been sitting in my garage for about 3 months now.
 

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I am really surprised no one has chimed in with a answer on this. I honestly thought this would be a cheap common mod. I already did this to my STI and it worked just fine. I just tapped into the dome light power wire and that was that. I just thought someone on here could provide a suggestion if there was a different way. I hope I have enough free time this weekend to knock it out. Damn LED's have been sitting in my garage for about 3 months now.
I'd been fiddling with my dome light and map lights with my tester for days now.. If you figure it out keep me posted! I wanna see the end result.
 

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Puff Puff Pass
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451 Posts
Discussion Starter · #10 ·
Hey I was just talking about this with a coworker and he swears the Door courtesy Switch puts off a electrical charge when the door is open. That cant be right. I dont have a voltmeter on me since I am at work. Does anyone know if it does or not off the top of your head? I want to prove he is wrong.
 

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Lemon Jelly Donut
many things
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882 Posts
Hey I was just talking about this with a coworker and he swears the Door courtesy Switch puts off a electrical charge when the door is open. That cant be right. I dont have a voltmeter on me since I am at work. Does anyone know if it does or not off the top of your head? I want to prove he is wrong.

Page 80 of the "color wiring diagram", shows the interior illuminatin circuit (dome, door switches, etc.)

the door switches are simple, spring loaded, on-(mom)off buttons, when the door is closed, it puches the switch pin, which "breaks" the circuit, or cut current flow (i.e., off). when the door is open, the internal spring returns the pin, to the rest/normal position, completing the circuit, allowing power to flow, so for the most part, your friend was right.
 

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Lemon Jelly Donut
many things
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882 Posts
What is this book you are refering to.. Hanes manual?
Aside from the FSM (Factory Service Manual) There is also a Colored Wiring Diagram supplement, floating around :naughty: (for 93 trucks, but fairly accurate for same generation models, wiring color changes aside).
 

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HiluxSupraISF
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4,529 Posts
I am really surprised no one has chimed in with a answer on this. I honestly thought this would be a cheap common mod. I already did this to my STI and it worked just fine. I just tapped into the dome light power wire and that was that. I just thought someone on here could provide a suggestion if there was a different way. I hope I have enough free time this weekend to knock it out. Damn LED's have been sitting in my garage for about 3 months now.
What year STI do you have?
 

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Supafly
1991 toyota pickup
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4,401 Posts
The LED strips I used bearly used any amperage so I just used an inline fuse.

Make sure your switch can handle the amperage and voltage that your lights will need if you dont use a relay.
I tapped into the battery so I can turn them on and off when I want.

 

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Puff Puff Pass
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451 Posts
Discussion Starter · #18 ·
Page 80 of the "color wiring diagram", shows the interior illuminatin circuit (dome, door switches, etc.)

the door switches are simple, spring loaded, on-(mom)off buttons, when the door is closed, it puches the switch pin, which "breaks" the circuit, or cut current flow (i.e., off). when the door is open, the internal spring returns the pin, to the rest/normal position, completing the circuit, allowing power to flow, so for the most part, your friend was right.
Unfortunately, tapping into the door switches doesnt work. This would be such a simple mod to do if that were the case.

I just finally had some free time so I started this project. Hopefully it wont take too long.
 

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the door switch is a negative trigger, if you want it hooked to the door trigger you need a relay.

First connect a wire from the door switch pin to 85 of your relay, then connect pins 86 and 87 to a constant FUSED 12 volt source (battery, radio, under the dash etc.) Then hook up the power wires for your LEDS to pin 30 and ground
 
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