88MJXLS Posted January 3, 2011 Share Posted January 3, 2011 Hey guys, I'm in need of some assistance. My truck has power at the fuse box and has a good ground in the left tail light pocket, the back-up lights are super bright, but the rear signals and brake lights don't work. I'm thinking it may be a short somewhere between the fuse box and the lights, but are there any other problems our our trucks are prone to have that could cause this? Thanks! Kitch Link to comment Share on other sites More sharing options...
91coMANche Posted January 3, 2011 Share Posted January 3, 2011 The fuse is definitely clean and firmly planted in the fuse box? Link to comment Share on other sites More sharing options...
88MJXLS Posted January 3, 2011 Author Share Posted January 3, 2011 Yep, checked 'em all and made sure they were in correctly Link to comment Share on other sites More sharing options...
Pete M Posted January 3, 2011 Share Posted January 3, 2011 there is a connector in the harness located right behind the drivers side rear tire that might be causing your issue. I had corrosion in that connector that killed my brake lights. cleaning might work, but for my truck I needed to splice in a new generic connector from the auto parts store. also, make doubly sure the bulbs are the correct dual filament bulb. Link to comment Share on other sites More sharing options...
88MJXLS Posted January 5, 2011 Author Share Posted January 5, 2011 Thanks for the tips Pete! Unfortunately I had to take the jeep to the shop because my fam can't afford to be down to one vehicle (with the manche's lights out it was 5 people using one van, quite a nightmare) and they could get it done sooner than I could (more my folks idea than mine) friday I'm going to go look for a newer vehicle to be my DD so I can give myself more time to work on the 'manche and turn it into the beast I want it to be :cheers: Link to comment Share on other sites More sharing options...
jimoshel Posted January 5, 2011 Share Posted January 5, 2011 When your having trouble with any of the tail light functions, the first thing to check is to see if a PO wired up a trailer wiring harness. If so, remove it. or at least eyeball it carefully for shorts and corrosion. Then follow common trouble shooting procedures, as out lined above. Link to comment Share on other sites More sharing options...
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