I have a new 2007 Silverado LT extended cab. Everything was fine last week with my work trailer, but now this week I do not have right trun signal on my work trailer, nor my boat trailer, nor another trailer I tested. There seems to be no juice at the plug when I tested with test light. I suspect a fuse inthe truck, but can not seem to locate. Any suggestions ? Thanks id advance.

 

well i am not sure on the 2007 ,better look in your owner's manual for sure, most are under the hood on the driver's side .that's were mine are on my 2001 hd .

 

Thanks. I should have been more specific in my original post. I have already went through the fuse box under hood on the drivers side as well as the drivers side cab fuses with no luck.

 

I don't think you said rather your truck turn signals work or not.

 

Did you look at the fuse panel on the drivers side of the dash?

 

I have a 2007 Silverado and I had a similar problem recently where my truck tail lights worked properly but the trailer lights would not work. I learned that Chevrolet wired this truck with safety in mind. Turns out the trailer lights are powered from a different power source than the truck tail lights so if you have a short in your trailer wiring it won't blow the fuse to all your tail lights. Under the hood you will find a large fuse box and it contains several mini fuses. My problem was a blown 15 amp fuse and the underside of the fuse box lid shows that you have several mini fuses for different lights on your trailer. If you have a naked wire (dog chewed on wiring harness) it will only blow the fuse to that light and leave all the others working. Pretty cool. Its been a while since your post so I guess you have already solved your problem, but maybe this will help others.