I have been trying to find a way to install HID fogs with the oem switch fully functional and can be turned on while high beams, or independently by itself even with parking lights. Only thing i find is that it cannot be done and maybe a few people have done it. And to the people who have done it i never came across a DIY on how to do it either. Anyways, I got the chance to take it on myself today and have successfully installed it today, fully functional using the OEM switch. This is done on a 07 type s. When i get the chance i'll try to come up with a DIY schematic drawing type and those who are interested can attempt it themselves using the diagram.

 

please do because i plan to get one

 

oo subscribed!

 

I am interested as well.

 

interested also! would like to know if it would work on a 04-06 also since your is a 07 =[

 

https://acurazine.com/forums/showthread.php?t=744035

sort of a DIY or more of what you have to do.

 

hey guys, sorry been out of town to norcal. drop by in irvine last night, but will be home tonight to try to post up how how to get the fog lights going with the oem switch.

 

Okay guys,
Finally sorry for lagging if you guys were waiting but here is my diagram that i whipped up. This is to obtain the oem fog light with a hid harness or customer harness. I tried to implement as much stuff as i can on the drawing so hopefully it helps. I had no issues with this, had it running 6 hours straight while i was on vacation this weekend and no problems with the fogs at all!. This will let you use your fog lights when your key is on the "ON" position. So as long as the key is on the "ON" position. Your fog lighst will be able to come on with Parking Lights, Headlights, High beams, etc.


Quick splice connector used to connect pin 5 and line "B" together.

Sample image of a "add a line/fuse/circuit" original 30amp of the windshield fuse goes closes to the metal connector and 10 amp goes to the line part of it.

The molex connector of the combination light switch that connects to the combination control unit. you can see pin 5 hole is a little big because i was trying to remove the pin. I just used a very small flat head to remove the pin.


Sample image of pin 5 (blue/white) wire disconnected.
Heat shrink or tape the metal part and use the quick splice on the wire part of it to save the metal part in case you want to put it back to original.

Before you start all this of course unplug your battery!. I am not responsible for any mistakes, i have describe it as much as i can possible, if you have any questions please ask before you attempt it. I am always willing to answer. But as the picture above, point A and B is the two wires that goes through the fire wall. "A" goes straight to a "add a fuse" line i used a 10 fuse and the original 30 fuse which was for the windshield wiper motor. As for the fog light switch run line "B" up the steering column and then remove the molex plug that connects to the combination control switch unit and then from there remove pin 5 (blue/white) as you see on the picture of how the connector looks like. I decided to remove the pin instead of cutting it is because my car is still under warranty and i don't like destroying oem harnesses, so i heat shrink the metal pin and just used a "quick splice" connector and connected line "B" directly to Line "5" of the connector. After you removed the pin and use the quick spice to connect line "B" and pin "5" together. Plug the molex back into the combination control unit. To be sure that it is working right, use a DMM check to see if pin 5 is grounded when the fog light switch is on verifying it is ground.

This is my first sort of DIY so bare with me, just trying to share fellow members....
Do it at your own risk, i take no responsibilities, please ask questions if need help.


Just fogs on


Fogs and Headlights


Fogs, headlights, highbeam

 

would you have any idea if this would work with 04-06?

 

also if i am correctt 85 on the relay is for a ground? cant we just grount that wire then instead of running it to the wiper?

 

pin "5" of the switch is ground so you can connect that to 86 or 85 of the relay but you would have to find a power source for the "trigger" of the relay which i used 85 for the power source and 86 to ground, they can be switch around. It won't work if you ground 85 and ground 86. by my diagram you can connect 85 to wiper motor, parking lights constant wire, headlights, etc, its just basically i guess you can say gives power to the relay but pin 5 is just completing the circuit connecting it to ground.

 

I used a 07-08 service manual for this, never been in a 04-06. Not sure if the switch is there the same or the connector the same at all? Can anyone confirm if the connection of the combination light switch is the same as the 07-08?

 

Guidance you still around? I want to do this to my 06 can you take a look at this page from the service manual of the 04 and tell me if the switch wiring is similar to yours?

 

sweet! thanks

 

hmmm .. might have to try this.. thats cool someone finally figured it out.. I really hope that the wires are the same for the 04-06 TLs..

 

I will probably be attempting this over the weekend I'll keep you posted

 

Looking at that diagram you posted it looks the same, but not sure if the color of the wires are the same though. The way i tested was with a DMM. Just put one lead on the ground of the car and one lead on the pin your pulling off which would be pin 5. Then by switching the fog switch off and on, it should short out to ground. I didn't cut the end of the pin 5 wire just in case i need to take it back to dealer for some warranty work, so i just taped up the end metal contact and used the the quick spice connector and attached to the wires. hit me up if you have anymore question. glad to help.

 

Ok, so I did the accord fog light switch mod a few years ago. The only problem is that I've pulled the fuse on my DRLs. I would like to set these up on a switch too. Since I already have my fogs set up on an independent wire harness, I just need to re-wire pin 5 to my relay and I'll have your fog light set up.

Is there anyway I can make my accord switch turn on the DRL's? I would also like them to turn off with the parking brake. I hate when I get somewhere and park, they stay on. Any ideas would be helpful. I'm going to ponder this now until I figure it out.

 

I wire them to the stock fog lights. Never to the parking lights because if they blink when you open the car( if you leave them on by any chance)...bye bye HIDs.

 

Great news! One more question where exactly is the harness for the combination switch is it right in the steering column or can I tape in elsewhere? If so did you remove the lower dash trim and the steering wheel base trim to get to it?

 

555.. the combination switch harness is connected to the right switch(windshield/washer). Removed the steering column cover and you'll be able to follow the combo switch harness to it, unplug it and removed that pin 5. Just the way on the picture i had. I didn't remove the lower dash trim, only the lower steering wheel base trim. Basically that pin is my ground (86) and i got the power from my windshield wiper motor fuse in the kick panel to power up my relay(85). Then relay then triggers the power from my battery to power up both of the HID ballasts. You cannot tap it anywhere else. You'll have to leave that pin 5 wire off its connector and just run it to the relay.

 

So basically my shopping list to do this is:
1 Add a line fuse connector
1 Splice connector
1 Relay
Wire

Correct?

 

subscribing

 

Sweet easy enough. One last thing, well 2 I guess where did you mount your ballasts and where did you run through the firewall? Did you have to drill a new hole or did you feed through an existing? Sorry brand new car I haven't been under my dash yet.

 

there is three holes in the upper middle of the firewall

 

Guidance... One last question I am going to try and do this tomorrow. I installed the HID kit already and it works fine just PNP but time to wire the switch. Where did you run the power wire for HIDS # 87 from the relay? did you splice in at each light or do the wires come together anywhere in the OEM harness (before the control unit of course) that I could tap into for a cleaner install? Where exactly is the control unit do you know?

 

Where did you put the switch for the fogs? Can you take a pic?

 

who me? what switch? I will be using the stock fog light switch

 

I was referring to TC but thanks for answering anyway

 

A few things to note on this DIY:
1) The Add-A-Fuse is only rated to 10A and you're inserting a 30A fuse in it.
2) Another 30A fuse between battery and relay.
Everyone needs to remember that fuses protect the wiring, not necessarily the devices. If you are going to run 30A of power through a cable, make sure it is beefy enough to handle it so it will be the fuse that blows before the wires burn.
Most quality relays and harnesses should be able to handle a 30A load, but I chose to use 20A fuses on my HIDs and they run fine. I may even try to drop to 15A at some point just to increase my "safe zone".
I would find a source other than one you chose to remove the Add-A-Fuse from that high power circuit. Since all you need is a signal to the relay, use fuse #32 ACC in the underdash box. It has power in the ON position only, independent of the lights and I believe its a 7.5A fuse.

 

Do you know where this foglight relay is located in the car?? I want to tap into the blue/yellow wires as far up as possible not at the headlights if possible.

 

I don't know what year I am looking at, but in my 06 Electrical manual it shows the relay hanging off the underhood fusebox, towards the centerline of the car. Its a small black cover. If you pop it open, there are 2 relays inside---one is the Fan Control (Drivers side) and the other is the Fog Light. The Blue/Yellow wires out of the relay are what you want.

 

Great! I have a 2006 so it should be the same. thanks

 

Roger, I am very interested in this and has been reading up on it for a week now..I have an 04 TL..Please let me know if you had success with using the OEM switch to turn on the DRL lights independent of the headlight or the parking lights...

I am SOOO subscribed to this thread right now..

Good luck to you..

 

So this will work ONLY if you get HIDs right?

Looking at the diagram it looks like it.. unless, I cut the power wire to the fogs and replace it with the wire from pin 87 on the relay.. Right? lol .. i htink I answered my own question.

 

Ya you got it, it doesn't matter if you are using HIDs or not either way you are just redirecting where the fogs get power from all while using the combination switch.

 

I will be working on it today some and probably the wiring tomorrow, i'll keep you posted!

 

Ok I was getting all my printout togather and located the foglight relay then I started thinking why even go through the trouble of adding another relay why not just use the fog light relay itself? I drew thing up today I think it makes things ALOT easier all you need to do is run two wires. Anyone see any issues with this?

 

I can't wait until I get the electrical issues in my car worked out, this is my next mod!

 

Wow, that would be really cool. I ran my own relay already but curious to see if this works out for you.