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-   -   1998.5 Trying to wire factory fog lights, Can't find Jumper from Lights to harness. I (https://www.dieseltruckresource.com/forums/2nd-gen-dodge-ram-no-drivetrain-90/1998-5-trying-wire-factory-fog-lights-cant-find-jumper-lights-harness-i-336088/)

Joey.G Jan 28, 2024 01:39 PM

1998.5 Trying to wire factory fog lights, Can't find Jumper from Lights to harness. I
 
So previous owner wired up fog lights but I want to set them up factory, I have a new Air Bag / Fog light combo switch. I believe i found the connector by the center of bottom of radiator , I need the jumper that connects from there to each fog light. I have not taken the dash bezel off yet but I do think the factory switch wiring will be there. I have found jumpers from all other years but just not 2nd Gen. Any help with this would be great.

I have a complete after market harness that I tried on my bench and was able to make it work with the factory switch I bought but I don't want to rig anything. My truck has the pull head light switch.



Thanks

Joey.G Feb 6, 2024 07:13 AM

I was able to track down the front harness, Now I need to pull bezel and see if I have the wires for factory switch.

Vaughn MacKenzie Oct 13, 2025 09:10 PM


Originally Posted by Joey.G (Post 3387867)
So previous owner wired up fog lights but I want to set them up factory, I have a new Air Bag / Fog light combo switch. I believe i found the connector by the center of bottom of radiator , I need the jumper that connects from there to each fog light. I have not taken the dash bezel off yet but I do think the factory switch wiring will be there. I have found jumpers from all other years but just not 2nd Gen. Any help with this would be great.

I have a complete after market harness that I tried on my bench and was able to make it work with the factory switch I bought but I don't want to rig anything. My truck has the pull head light switch.



Thanks

I’m trying to wire up fog lights on my 98.5 as well. Got a combo switch panel and found the wiring harness behind the little panel, but I had to take parts off of the old panel to make the replacement work. But that was fairly easy and the wiring harness plugged right in.

I ran into the trouble though, trying to find any sort of harness under the radiator. I found two different plugs, but neither activate or send any power when I push the button on the dash. I opened up the PDC under the hood and installed relays in the fog light position, but that didn’t help. Then I started getting weird electrical problems like my radio quit working and the 4wd light is stuck on now which is funny being it’s a 2wd truck. Reading wiring diagrams is a struggle, but I’m going to see if I can figure out where the wires run from the PDC and make my own harness to the fog lights.

Joey.G Oct 14, 2025 07:16 AM

If you found the right harness up front, most likely the relays weren't installed at the factory as the truck wasn't getting that option.


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