trinity5007 Posted July 29, 2021 Share Posted July 29, 2021 Hey guys. Looking for some help. In trying to set up my factory fog lights but I can't seem to get them to work. I have the OEM switch it lights up but no power to the actual fog lights. I know there is a relay but I can't seem to find it. It's a 1992. The Haynes manual was less then helpful. And Google does nothing. I found the fuse it's good. Now I'm trying to find the relay. Any Ideas? Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted July 29, 2021 Share Posted July 29, 2021 I believe on the 92 should be by the airbox. Link to comment Share on other sites More sharing options...
trinity5007 Posted July 29, 2021 Author Share Posted July 29, 2021 The 1990 was by the air box. I'm not sure about the 92. There is a plug that comes off the harness by the ecu but the wiring is different colors. Link to comment Share on other sites More sharing options...
Strokermjcomanche Posted July 29, 2021 Share Posted July 29, 2021 My 91 is by the airbox, I'm assuming the 92 would be also Link to comment Share on other sites More sharing options...
SVPete Posted July 29, 2021 Share Posted July 29, 2021 In my 1992 Cherokee, it is mounted above driver's headlight, near the ECU and airbox intake. Link to comment Share on other sites More sharing options...
silvertwinkiehobo Posted July 31, 2021 Share Posted July 31, 2021 Yup, that's the relay location, and any 40 amp Bosch-design relay will plug right in. The connector should be there, but it may be wrapped up, so look carefully. Link to comment Share on other sites More sharing options...
trinity5007 Posted February 13, 2022 Author Share Posted February 13, 2022 Might be late I did actually figure it out. I couldnt find it because it's not there. I go the wiring diagram and traced the wires. My headlight harness didnt have the fog light option. Truck side is all there. So all I have to do is ad in the relay kit and I'm good to go. Link to comment Share on other sites More sharing options...
JYau Posted February 14, 2022 Share Posted February 14, 2022 I ran into the same issue before and that is correct that if your Comanche did not come with the factory fog light option the relay is not there. Most of the wiring is there, I would recommend using some contact cleaner on the old existing plugs. Link to comment Share on other sites More sharing options...
schardein Posted February 14, 2022 Share Posted February 14, 2022 When I added mine, I wish I had kept better notes. I ended up going to the junkyard and getting the harness pieces from a 91 XJ. Even then, it seems like I had to re-pin my headlight harness connector to get it to work. If you have access to the factory wiring diagram, just pay close attention as you wire it up and it should be fine. And like JYau said, while you are in there, check that headlight harness connector near the airbox. Mine was VERY corroded inside, to the point I ended up replacing some of the wires and terminals with ones from the junkyard XJ. Link to comment Share on other sites More sharing options...
trinity5007 Posted February 15, 2022 Author Share Posted February 15, 2022 Lol ya I actually ran into issues with it before. And had to clean them Link to comment Share on other sites More sharing options...
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