KingSlayerMJ Posted August 11 Share Posted August 11 On 5/29/2008 at 10:19 PM, Boilermaker said: the '92 XJ harness should have two 16 pin body connectors, one gray and one black. I don't know the pin outs for an '88 MJ body harness, but for a '92 MJ ten splices are necessary to get things working. The first 6 pins from the black XJ harness match up with the MJ's. The other eight pin outs can be spliced over from the gray XJ harness. 92 XJ Gray body connector (wire colors in parentheses): pin 1 (db/or) Speaker return right rear pin 2 (db/wt) Speaker feed right rear pin 3 (or/bk) panel illumination pin 4 (bk) ground pin 5 (pk) courtesy lamps pin 6 (br/lb) speaker return left rear pin 7 (br/yl) speaker feed left rear pin 8 pin 9 (yl) switched ground pin 10 (lg) seat belt switch pin 11 (br/rd) rear wiper run pin 12 (wt) rear wiper park pin 13 (or/vt) lock relay pin 14 (pk/wt) unlock relay pin 15 (vt/yl) security alarm liftgate pin 16 (pk/or) keyless arm input '92 XJ Black body connector (wire colors in parentheses): pin 1 (dg/tn) Fuel Pump pin 2 (tn/dg) Right Rear Turn Signal pin 3 (db/rd) Parking Lamps pin 3 (db/rd) Parking Lamps pin 4 (db) Fuel Gauge pin 5 (br/lg) Backup Lamp Signal pin 6 (lg/bk) Left Rear Turn Signal pin 7 (gy/or) Brake Pressure Warning SW/ Park Brake Light pin 7 (gn) Brake Pressure Warning Switch pin 8 (bk/rd) Rear Defogger pin 9 pin 10 (bk/wt) Rear Washer Feed pin 11 (wt/tn) Stop Lamps pin 11 (wt/tn) Stop Lamps pin 12 pin 13 pin 14 pin 15 (db/or) Illuminated Entry Signal pin 15 (dg/or) Right front door security pin 16 (lg/or) Left front door security '92 MJ Black body connector (wire colors in parentheses): pin 1 (dg/tn) Fuel Pump pin 2 (tn/dg) Right Rear Turn Signal pin 3 (db/rd) Parking Lamps pin 3 (db/rd) Parking Lamps pin 4 (db) Fuel Gauge pin 5 (br/lg) Backup Lamp Signal pin 6 (lg/bk) Left Rear Turn Signal pin 7 (br/yl) Speaker Feed Left Rear pin 8 (br/lb) Speaker Return Left Rear pin 9 (yl) Switched Ground pin 10 (pk) Courtesy Lamps pin 11 pin 12 pin 13 (db/or) Speaker Return Right Rear pin 14 (db/wt) Speaker Feed Right Rear pin 15 (lg) Seat Belt Switch pin 16 (or/bk) Panel Illumination hi, I'm having the same issues in my 87 MJ. ive swapped over a 91 ho out of a laredo i belive, donor was beat to all hell and had no doors so not 100% sure on trim level. anyway, 91 engine, harness and dash harnes, fires up and runs good. but am having lighting issues. before trying to hook up rear lighting all front lighting worked the way it should other than turn signals. i follow this pin guide and now i have break lights, and tail lights, but now only left running light in the front and only right turn signal in the front. and turn signals won't work with brake lights on(the just stay on and won't flash) i have been working on lights for about a week and at my wits end with this. i don't understand how lights went from working to not and only working in certain modes. Link to comment Share on other sites More sharing options...
eaglescout526 Posted August 11 Share Posted August 11 On 8/10/2024 at 9:00 PM, KingSlayerMJ said: hi, I'm having the same issues in my 87 MJ. ive swapped over a 91 ho out of a laredo i belive, donor was beat to all hell and had no doors so not 100% sure on trim level. anyway, 91 engine, harness and dash harnes, fires up and runs good. but am having lighting issues. before trying to hook up rear lighting all front lighting worked the way it should other than turn signals. i follow this pin guide and now i have break lights, and tail lights, but now only left running light in the front and only right turn signal in the front. and turn signals won't work with brake lights on(the just stay on and won't flash) i have been working on lights for about a week and at my wits end with this. i don't understand how lights went from working to not and only working in certain modes. I split your post into a new one so we aren’t performing necromancy on old topics. Chances are, the thread you found can help you, but most those members in that thread are inactive. Link to comment Share on other sites More sharing options...
Boilermaker Posted August 12 Share Posted August 12 It could be a bad ground, turn signal flasher, corroded bulb socket among a number of other things. Sounds like you've worked through many of possibilities already; having the wiring diagrams to refer to is helpful if not absolutely necessary. Do you have access to the 1991 electrical FSM? If you don't, I can upload the 8-10 relevant pages. Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 15 Author Share Posted August 15 On 8/12/2024 at 9:12 AM, Boilermaker said: It could be a bad ground, turn signal flasher, corroded bulb socket among a number of other things. Sounds like you've worked through many of possibilities already; having the wiring diagrams to refer to is helpful if not absolutely necessary. Do you have access to the 1991 electrical FSM? If you don't, I can upload the 8-10 relevant pages. I'm am going trough and checking grounds ATM also tried just running a 12v wire to the plug where the front harness connects in the engine bay, i can see the bulb trying to light up but its not bright in anyway shape or form. and i have a 94-01 cherokee repair manual and tahts what I'm going through atm Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 15 Author Share Posted August 15 Ok, sorry for multiple small posts... figured out passenger turnsignal light socket was faulty, replaced it. Front lights work except turn signals, gonna try relay next cuz flashers work. Took hazards flasher and put into to turn signal flasher and no change. Rear lights will turn off when turn signal is engaged but no flash Link to comment Share on other sites More sharing options...
eaglescout526 Posted August 15 Share Posted August 15 42 minutes ago, KingSlayerMJ said: Front lights work except turn signals, Hold on before you go crazy. Are your front sockets plastic or metal? Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 15 Author Share Posted August 15 7 hours ago, eaglescout526 said: Hold on before you go crazy. Are your front sockets plastic or metal? Plastic, both have been replaced previously Link to comment Share on other sites More sharing options...
eaglescout526 Posted August 15 Share Posted August 15 2 hours ago, KingSlayerMJ said: Plastic, both have been replaced previously We’re they replaced with the same style socket? I only ask this cause those sockets suck. They’re ford sockets and there’s a metal tab in that socket that is prone to just rusting away and failing all together. The early 84-86 and later 91-96 metal sockets are much better. Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 15 Author Share Posted August 15 One was plastic like the the one I replaces it with. The driver side was switched out for a metal one from a later model xj Link to comment Share on other sites More sharing options...
eaglescout526 Posted August 15 Share Posted August 15 The metal ones are the way to go. If that doesn’t solve the problem, suspect corrosion in the front lamp harness connector. Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 27 Author Share Posted August 27 Thank you all, I was finally able to get everything working.. well most everything, I changed out both sockets a few fuses and re slpiced the plugs and it all started working, dish light quit working a few days ago again. Gonna check fuses again and my fuel Guage still won't work. Other than that it's all working fine! Link to comment Share on other sites More sharing options...
KingSlayerMJ Posted August 27 Author Share Posted August 27 Link to comment Share on other sites More sharing options...
eaglescout526 Posted August 27 Share Posted August 27 If your fuel gauge isn’t working, check and clean the ground behind the drivers side tail lamp. Link to comment Share on other sites More sharing options...
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