Problem with outside lights

kaulana wrote:

CaptPicky wrote:
Go buy you a multi-tester at Wally World or Radio Shack. Start at the beginning. Make sure your wiring connector on your truck is working. Test each connection. Then start working your way down the line towards your trailer. There probably is a broken connection somewhere along the line.

I got a tester and started at the tv connection. With the lights ON on the truck, two pins read between 50-60 volts and the rest were zero. So this must be a problem with the fuse on the TV then? I found the fuse box near the engine, and found which two fuses control the trailer hookup, but not sure what to do next.

Do I replace these? Should I just take my truck in to the shop? (I tried to get the fuse out by tugging lightly, but it didn't budge and I didn't want to break anything)

Thanks again

OK,
I guess a little tutorial on meter use is in order. BTW, post back with a description of your meter or a link to what it is, it makes it easier to share what is going on.

With the red lead of the meter connected into the V,ohm,mA hole and the black lead connected into the COM hole, you place the business end of the red lead into your vehicle's 7 pin receptacle in the "green" pin slot depicted in the diagram. The black business end from your meter can either be in the "ground/white" pin slot of the receptacle or anywhere on the vehicle that has a good, bare metal connection to the frame, and hence, also to ground. With the vehicle's headlight switch turned on, your meter (with selection set to DCV) should read 12V->12.6V.
If you get no voltage reading, there is no power to the vehicle's trailer receptacle and you will have to check fuses, first, to see if one or more are blown. To check a fuse, remove the fuse, set your meter to one of the Ohm settings, place one meter lead on one leg of the fuse and the other meter lead on the other leg of the fuse. Your meter should read (0.00) if the fuse is good. If it is bad, you will see some value or infinite. This use is called checking for circuit continuity.
If fuses check to be good, it may be that you have an "open", a wire that is parted or termination that is not connected. A good place to look for this is on the back of the vehicle's trailer receptacle. Sometimes, road debris can fly off roadway and part a wire at the back of the receptacle.
Try the voltage readings and fuse viability and we can help from there.