Dually replacing OEM fogs?
- Thread starter ssgp2
- Start date
OverlanderJK
Resident Smartass
You need a relay or the lights will blink when turned off.
thardy
Banned
I tried to do this same thing, but ended up running a separate switch. I first tried tapping into the OEM fog light harness but got the blinking that Overlander mentioned, as well as the lights dimming every so often. Ultimately made the decision to put in a switch panel since I was going to need one anyway.
OverlanderJK
Resident Smartass
I have my lightbar wired up to the fog light switch and have no issues.
Panda
New member
What type of relay are you using? Where can i get one?
OverlanderJK
Resident Smartass
Just a regular automotive relay. Don't forget you won't be able to use those lights with the brights on though.
thardy
Banned
Interested to know as well.
Panda
New member
Good point, thank you sir :thumb:
thardy
Banned
Thank you sir. I really just used it as an excuse to buy a switch panel.
Good to know though as I add more lights.
Slappy32
New member
Just an FYI, you can change the fog/high beam setting with a ProCal, so they can work at the same time.
OverlanderJK
Resident Smartass
Really? I'll have to look into that. Not that it's needed but just because I can possibly do it.
Slappy32
New member
Sorry, I mispoke, it's SuperChips. I have both. Long story. Sorry for the confusion.
I was reprogramming my tire size and gear ratios and stumbled upon it.
OverlanderJK
Resident Smartass
07JKSahara
New member
I have the Flashcal, turned this on but it still doesn't work. It's an 07, would that matter? They are also LEDs, but everything else with the lights is none stock. Any ideas?
pastorwug
New member
I'll want that too, so I'll check my superchips and try it.
bthomas
Member
The set of dually's I got came with a switch and relay pre wired, but I wanted to do the same as you. I used the stock fog light circuit to fire the relay that came with the D2's. I think I may have had to run a wire down to the fog locations, I can't remember for sure.
How I did it was to not use the switch that came with the dually's, there is a blue? wire the best I remember that goes to the D2 switch, that is the trigger wire to the D2 relay, use that that blue wire that was connected to the switch and splice it into the JK fog light circuit at the lamp location. I cut off one of the factory JK lamp plugs on one one side to make the connection to the relay trigger. Cut and solder if you can, if you can't, use some good quality crimp connectors and tape them up well with good electrical tape. Cheap stuff never sticks well. In the pic you can see the 86 terminal is your trigger input. That is where the stock JK fog light circuit will land, and all other connections are the same as far as positive and negative. The D2 lamp power will be from the battery directly, so your stock switch just activates the D2 relay, which them feeds battery power to the D2 & the canbus system is none the wiser and no goofy flickering will happen with your new fogs. Hope this helps. Let me know if you have questions, it's pretty easy really. I wish I could verify wire colors for you, but my jeep is at my office at the moment.
How I did it was to not use the switch that came with the dually's, there is a blue? wire the best I remember that goes to the D2 switch, that is the trigger wire to the D2 relay, use that that blue wire that was connected to the switch and splice it into the JK fog light circuit at the lamp location. I cut off one of the factory JK lamp plugs on one one side to make the connection to the relay trigger. Cut and solder if you can, if you can't, use some good quality crimp connectors and tape them up well with good electrical tape. Cheap stuff never sticks well. In the pic you can see the 86 terminal is your trigger input. That is where the stock JK fog light circuit will land, and all other connections are the same as far as positive and negative. The D2 lamp power will be from the battery directly, so your stock switch just activates the D2 relay, which them feeds battery power to the D2 & the canbus system is none the wiser and no goofy flickering will happen with your new fogs. Hope this helps. Let me know if you have questions, it's pretty easy really. I wish I could verify wire colors for you, but my jeep is at my office at the moment.
