Hi guys and gals , I have a 2004 387 , my side lights are not working on the truck and trailer , I've been trying to locate a fuse for it but no luck yet I, hoping you guys can help , thanks
04 387 side lights not workin on truck and trailer any help can't find a fuse for it
Discussion in 'Peterbilt Forum' started by Gator387, May 6, 2015.
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Most likely you have a short in your Tractor wiring, there isn't a specific fuse just for the side lights. There are separate fuses for Tractor Marker Lights and Trailer Marker Lights.
If a specific section of your lights are working, but another section isn't working, it's usually a short in the wiring somewhere.
Since some of your Marker Lights are working, you can rule out the possibility that you have a bad fuse. -
Any any recommendations on how to trace a short and where should I start looking at -
Do all of your Tractor lights not work when the Electrical Cord is disconnected from your Trailer or does it happen when it's plugged in also?
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I just check it , umpluged the electrical cord on the trailer but ,y side lights still won't turn on on my tractor
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Just called the dealer they got no idea what that is
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Kool thanks I'll get on it
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I got it fix , there is a fuse box in the engine bay , in front of the firewall passenger side , it has a big fuse size 30 I replace it with a 40
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