Finally! Independent Fog-Light MOD = done.
 

I figured out how to control the factory foglights, at any time- using the original factory switch. Now you can have "FOGS ON" whenever you want...

Here's the link





Attachment 46620


Attachment 46621

great work. you're a genius. I want to hit the "like" button a hundred times.

:trophy:

Yay! You're our savior!

That's pretty funny! Thanks, though!

does this work on the 2014?

I dunno- why don't you give it a try? I'll walk you through it if the wiring is different, just send me a PM.

Will my tires rub if I do this?

So mean.. but does this work if i dont use the search function instructions found in the stickies?

BTW: Awesome antman!

Phil just needs a good belly rub....

Yes and they will chafe leading to an unsightly rash that will spread to the fenders and eventually the entire vehicle. Maybe some Gold Bond will alleviate the embarrassment.

I want to do this as my next mod, however, I'm curious as to how different this will be on my 14' 4R .. I'm terrible at electrical work and will be pulling my electrician friend in to lend a hand.

I have all the electrical wiring diagrams for 2010 (front lights and fog lights), but for 2014+, I've only got the front lights and do not have the fog lights.

Anyone got them?

It would be good to see them and figure it all out electrical/wiring-wise, before hacking in.

I kind of assumed that it will be very similar to 2010, if not identical.

The factory fog switch goes to the ECU (FFOG input signal), and the ECU drives the (FFGO output signal), but this signal based on the other lighting states (headhlight, low beam, high beam etc..).

As Antman did it, the key is to intercept FFOG input signal from the switch to the ECU and then drive the fog-lights directly. One potential thing is likely to work if we can find and intercept the FFGO output signal from the ECU, we can even use the stock relay.

i think it would be cool to do the same with the drl mode. i think it would look cool to have the high beams on drl with the lows and fogs on

For 2014+, DRL is probably the one close to impossible to do since it is voltage regulation from either the ECU or the super pricy solid-state relay. It regulate the voltage to the high-beam/DRL 9005 bulb between 6V and 12V (I havent verified this claim personally yet).

BTW, I am looking for some multi-states switches for our trucks. I want ones that fit into the stock push buttons slots, but have functions like our dome light...... off-state1(door) -state2 (on).

:pop2:

Hate to bring up a dead tread.


Dose the wire connector from the fog light switch from the stock Have to be plugged back in behind the steering wheel?



I am planning to run all new wires and use the stock switch (on a relay) to run the fogs by themselves. I want to bypass The pricey OEM relay. I was going to unplugged the stock fog light switch wires and use 3M piggy back connectors to hook up the new wires. I have a 2015. that's why I am asking the question.

No you don't have to plug it back in- should work just fine.

I bought one of these.

H11 880 Relay Wiring Harness Conversion Kit for Fog Light LED Bulb AD39 | eBay

I will piggy back into those stock wires from the fog light switch and hook up the wires from the that harness..

its done,

Pain the ass kinda.. I used a new wiring that I bought off ebay.

Ran power off the batter for the lights. For the on/off part of the relay. I jumped off the side marker light (not blinker). I then ran the negative power side wire into the truck and unhook the small fog light switch connector. I disconnected the wires and 3m piggy backed one side for that wire and ran the other side to ground. So you can turn them off/on with the stock switch and when you shut the power off they go out. You do have to run the lights to make the fogs work.

http://i143.photobucket.com/albums/r...e.jpg~original

the lights are H8's 35w Yellow lights.

Has anyone seen a 14+ write up for this yet? I can't imagine it being much different, however, I haven't pulled my dash apart yet.

Also curious , want to do this on a 15

Great Job!!!
 

Amazing job! Mods & DIY's like this make this forum invaluable! Looking fwd to tackling this

lol- there are like, 700 more in my build thread.:biggrin1:

High current, solid state automotive relays are about $10 retail. Although Toyota does charge $250 for an empty 16GB SD card, so I'd imagine the dealer would charge $150 for their rebadge relay. Also, voltage regulation does not occur in a relay.

An ECU is an Engine Control Unit. Used to control valves, injection, air fuel ratios, etc. It won't have anything to do with your lighting. Although I guess ECU can stand for Electronic control unit, which is just a simple microcontroller and houses many relays, logic circuits in a modular plug-and-play unit. Unless you have the interface guide to program this, DIY'ers won't be utilizing this much unless they roll their own.

As an engineer this thread scares me. I bought this wiring harness off ebay and just plugged it in... *shudders*

That's because you guys only see in black and white.


Right @1engineer ?

Then as an engineer you need to realize regular people do stupid shit every day. This falls under the "I can explain it to you but I can't understand it for you" category. Not saying this thread topic is stupid or brilliant either. Just generally speaking. Oh, and engineers do stupid just as well as everyone else....

Yes they do! I try to pretend they don't but I'm reminded quite often that they do.

I've been known to say, "here hold my beer, watch this", blow things up with tannerite, fly and jump out of perfectly good aircraft; although not at the same time!

We see in color too. I have dreams about these quite often:

https://alyssaulangca.files.wordpres.../resistor1.jpg

Ya...Can you believe they taught this?

"Bad Boys Rape Our Young Girls But Violet Gives Willingly"

LOL- How times have changed!

I believe it may have been Ricky Gervais who said: "when you are dead, you don't know you are dead. All of the pain is felt by others. The same thing happens when you are stupid"

Sorry to resurrect this thread, but I have a quick question:

If I JUST wanted to make the fogs STAY on with the Hi's, (not need to be fully independent, just work as normal), is there an easier version of this mod in your thread?

All the Gen 4 mods for that looked pretty easy. But I want to do it on a 2016...

Thanks

I think it would still be the same amount of work, (you would need to add a relay). FWIW this mod looks worse than it is if your not used to getting into your dash, but its not so bad and the end result is glorious. Fogs stay on with high beams (as they should) and now I have LED fog DRL since I did the simple DRL disable mod. The combination of the 2 mods yields pleasing results.