So when you turn the bright's on do the fog light's stay on?

 

Yup thats how I did it, used a differnt fuse though.

 

Yeah, they stay on no matter what lights you have on or off, as long as the ignition is turned on, and you leave the Fog switch in the ON position.

That red ignition fuse was the only one that I could find that turned off when you turn the key off. :whatthe:

 

I have a much more complicated (but clean) writeup here: http://home.adelphia.net/~mtstoehr/files/05TacomaFogMod.doc

 

I have a much more complicated (but clean) writeup here: http://home.adelphia.net/~mtstoehr/files/05TacomaFogMod.doc

I didn't read the whole thing, but it seems a little over-engineered.

 

I didn't read the whole thing, but it seems a little over-engineered.

Exactly what you should expect from an engineer.

 

This is an old post, but I'm bumping it up because a couple people have asked me about it.

Also wanted to let you know: That red fuse in the picture above is connected to an ignition circuit that turns on and off when the truck turns on and off, but it can also come on by itself sometimes. About 4 hours after you turn you truck off, part of the ignition system turns on for a few minutes. I think it has something to do with controlling emission fumes that build up in the gas tank. So 4 hours after turning my Taco off the lights will turn on for a couple minutes. Unless I turn the fog light switch off inside cab. It's no big deal, but it was weird when I saw the lights come on by themselves. It won't drain your battery or anything. They only stay on for a minute or two.

If you don't like this, there is another ignition circuit that you can tap into, in the fuse panel under the dash behind the drop door by the drivers left knee.

Anybody, let me know if you were able to find a circuit in the under-hood fuse box that doesn't do this.

 

I just wanted to say great post. This mod works great! :clap:

 

PBmAX, sweet ride- how do you like those PIAA SuperPlasma's, Ive been looking but not sure which ones to buy, the whiter and brighter the better, ebay has several different ones, I wonder if 5000K is enough light, they go all the way up to 12000K (K=Kelvin rateing). thanks

 

I lost the picture I took but I followed Gargoyles rightup but just connected 2 wires on the underneath side of the fuse block together with a quick splice. Its all hidden under the fuse block and I can use the Fogs anytime.

 

I lost the picture I took but I followed Gargoyles rightup but just connected 2 wires on the underneath side of the fuse block together with a quick splice. Its all hidden under the fuse block and I can use the Fogs anytime.

I didn't think of that. What color wires are they? Do your lights come on every 4 hours like I expained earlier?

Got a link?

 

PBmAX, sweet ride- how do you like those PIAA SuperPlasma's, Ive been looking but not sure which ones to buy, the whiter and brighter the better, ebay has several different ones, I wonder if 5000K is enough light, they go all the way up to 12000K (K=Kelvin rateing). thanks

I love the Super Plasmas. Much better than stock, and pretty easy to install. The Tacoma manual has details on how to properly change the light bulbs. The passenger side is the hardest to replace because of the window washer fluid tank. Just be sure not to touch the bulb. Or you can wear rubber gloves when you're installing them. The fog lights are super easy to replace. The PIAA fog light bulbs come with 2 different o-rings you can use. Take the thick black o-ring off and replace it with the thinner red one before you install them.

I think I got 5k or 6k. They are plenty bright enough. Check this post for more info.

Replacement Bulbs

 

Just wondering, has anyone looked to see if there is an Auxilary fuse where you can switch the fog lights up to as if you were installing it indepently.

 

Just wondering, has anyone looked to see if there is an Auxilary fuse where you can switch the fog lights up to as if you were installing it indepently.

Every fuse on the fuse panel is powering something. I don't think there are any auxilary fuse spots that are sitting there un-used, but there are some un-used spots and terminals.

On my truck, in the in-cab fuse panel under the dash, there is an empty spot in the middle of the panel. The bottom terminal goes on and off with the ignition. You could tap into the terminals with a male spade connector, but I would probably run that to a relay, as I am not sure that, that circuit is big enough to handle powering the fog lights by itself. You'd have to add an inline fuse somewhere too.

 

Quesion on the jumper from the relay to the fuse. On the fuse which side is the jumper on, load side or line side. How did you determine which side to put the jumper on? Thanks

 

Quesion on the jumper from the relay to the fuse. On the fuse which side is the jumper on, load side or line side. How did you determine which side to put the jumper on? Thanks

You want to put the jumper on the load side, so that the current has to go through the fuse before it gets to the jumper. This way the fuse is adding some protection.

To find out which side is which, pull the fuse out and use a multimeter to see which terminal is live, which would be the line side, non-fused side. Connect to the other side.

 

I have a much more complicated (but clean) writeup here: http://home.adelphia.net/~mtstoehr/files/05TacomaFogMod.doc

Could you tell me how this would be differant on a Tundra?

 

You want to put the jumper on the load side, so that the current has to go through the fuse before it gets to the jumper. This way the fuse is adding some protection.

To find out which side is which, pull the fuse out and use a multimeter to see which terminal is live, which would be the line side, non-fused side. Connect to the other side.

Thanks for the info :thumbup:

 

I didn't think of that. What color wires are they? Do your lights come on every 4 hours like I expained earlier?

Got a link?

I thought I had a picture but I don't. It is basically the same setup as Gargoyles write up but I just jumpered on the underside of the fuse block instead of the jumper wire running on top.

I have no problems at all with the fogs. I can use them alone, with parks, with heads, with high beams and they still go off automatically when the key is off and the door is opened.

 

Mod worked great; took about 5 minutes. This was one of the first things I noticed that I would want to change when I got my tacoma. Thanks.

 

Hey Guys,
I just finished doing this foglight mod.
I got is done using a combo of all the methods that have been mentioned.
Here is a pic of how it looked when it was all done.





http://imageshack.us/






I first pulled out the relay for the fog lamps.
Then I bent out the top right terminal.
Then connected a female spade connect with a foot of wire attached to it.
Connector was then covered with shrink tube.
Then drill a small hole in the black divider wall between the fuses and wire plugs at the top of the fuse block.
Then find the light green wire that runs into a six pin connector. This wire only become hot when the ignition is in the on position or the truck is running.
Then using a crimp splice connector, I tapped into the light green wire with my lead going to the fog relay.
That is basically everything that needs to be done. I also unplugged the connector below the six pin so that it was easier to splice into the light green wire.

That is the method that I used.
If any of you see anything wrong with this method or anything that may cause a problem with the electronics of the truck, please let us know.
By using this method, my fogs work anytime the keys is in the on position and the fog lamp switch is on. They also work with the park, low beam, and high beam lights.

Hope this helps.
Later

 

Looks good!

:thumbup:

 

A Couple Stupid Questions...

I first pulled out the relay for the fog lamps.
Then I bent out the top right terminal.
Then connected a female spade connect with a foot of wire attached to it.
Connector was then covered with shrink tube.
Then drill a small hole in the black divider wall between the fuses and wire plugs at the top of the fuse block.
Then find the light green wire that runs into a six pin connector. This wire only become hot when the ignition is in the on position or the truck is running.
Then using a crimp splice connector, I tapped into the light green wire with my lead going to the fog relay.
That is basically everything that needs to be done. I also unplugged the connector below the six pin so that it was easier to splice into the light green wire.

How does the relay come out? Do I just pull it straight up? Mine seemed pretty tight and I don't want to break anything...

What size spade connector should I get? And what gauge wire should I use?

And finally, is a "crimp splice connector" something I should be able to find at Radio Shack? Does it work without cutting the light green wire?

I appreciate your help -- I am a real repair klutz...

:ugh3:

 

Exactly what you should expect from an engineer.

And what, exactly, do you mean by that?

 

I first pulled out the relay for the fog lamps.
Then I bent out the top right terminal.
Then connected a female spade connect with a foot of wire attached to it.
Connector was then covered with shrink tube.
Then drill a small hole in the black divider wall between the fuses and wire plugs at the top of the fuse block.
Then find the light green wire that runs into a six pin connector. This wire only become hot when the ignition is in the on position or the truck is running.
Then using a crimp splice connector, I tapped into the light green wire with my lead going to the fog relay.
That is basically everything that needs to be done. I also unplugged the connector below the six pin so that it was easier to splice into the light green wire.

How does the relay come out? Do I just pull it straight up? Mine seemed pretty tight and I don't want to break anything...

What size spade connector should I get? And what gauge wire should I use?

And finally, is a "crimp splice connector" something I should be able to find at Radio Shack? Does it work without cutting the light green wire?

I appreciate your help -- I am a real repair klutz...

:ugh3:

Then you shouldn't do it.....I know I can do it but choose not to. (If I did, I'd add another fuse in the middle of the wire used to jump it..probably a 5 amp)

Boo