MJ Madness 87 Posted July 18, 2016 Share Posted July 18, 2016 As much as I have loved all my Jeeps, every single one has been a wiring nightmare and I will be the first to admit, I don't know Jack when it comes to wiring and electrical systems. So here's my latest dilemma, I just received my new MJ from my uncle, It's very well built and was very well taken care of, however it did sit for a while and i think that may be the root of these problems. So I have working taillights, brake lights, hazard lights, headlights, license plate lights and side marker lights in the front, however, i have no front running lights, back up lights or blinkers, If i have my foot on the brake i can manually work the blinkers but only the rear ones light up, still nothing in front, and I can only do that when i have my foot on the brake, once i take my foot off the brake there is no light at all. I'm completely stumped, I already cleaned the entire fuse block and replaced every single fuse with a brand new one of the correct amperage. Don't know if it's connected or not but i also have no dash lights. Any advice at all is most appreciated, I'm pulling my hair out over here. Link to comment Share on other sites More sharing options...
cruiser54 Posted July 18, 2016 Share Posted July 18, 2016 Go to www.cruiser54.com and see Tip 3. Note the front lighting connector.... Link to comment Share on other sites More sharing options...
tugalo Posted July 18, 2016 Share Posted July 18, 2016 Do you have a trailer towing connector? It's not uncommon for someone to hack up the wiring when installing the connector which could cause some of the problems you described. This is usually indicated by the loss of dash/instrument lights. The circuit is designed that way to let you know that you have no rear lighting. Have you tried replacing the flasher for the turn signals? Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 18, 2016 Share Posted July 18, 2016 Do the above first. If no improvement, if you have an aftermarket radio, try unplugging the back connector and see if that helps. Link to comment Share on other sites More sharing options...
MJ Madness 87 Posted July 18, 2016 Author Share Posted July 18, 2016 No towing wiring, I have replaced the flashers and yes aftermarket stereo but not hooked up. Link to comment Share on other sites More sharing options...
HOrnbrod Posted July 18, 2016 Share Posted July 18, 2016 One or more bad bulb sockets can cause back feeding problems like this. I'd start by pulling your tail lights, un-twist the bulb sockets, then taking out the bulbs one by one and see if the back feeding symptoms go away or improve. Link to comment Share on other sites More sharing options...
Steve Gregory Posted July 19, 2016 Share Posted July 19, 2016 Unplug the whole rear lighting harness. I had similar issues on my old truck. Link to comment Share on other sites More sharing options...
MJ Madness 87 Posted July 19, 2016 Author Share Posted July 19, 2016 I've tried literally everything you guys have suggested and still have no progress whatsoever, in fact now my taillights are out too haha, not any fault of y'all of course, probably something i did wrong being as uneducated in wiring as I am. Think I may just have to take it to my local dodge dealer and have them take a look. Was hoping to avoid that since I know how expensive electrical stuff can be :/ Link to comment Share on other sites More sharing options...
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