Assuming you'll be using the common four pin flat connector;
Green is Right Turn signal/brake light
Yellow is Left Turn signal/brake light
Brown is for Tail lights/Running lights
White is Ground
You may need a 12volt test light to identify the wires on the truck to identify which ones
to splice into. Connect to a good ground and pierce the insulation with the pointed tip to identify.
loose wire?
Buy a kit at Wal-Mart/U-Haul or auto parts comes with instructions
You have a grounding problem at the trailer. The white wire is the ground on trailer wiring. The taillights are brown, the signals and stops are yellow and green. Sometimes the white wire will loose its continuity with the truck, causing the lights to black out. It could also be a wiring issue with the trailer itself, but most likely its the ground giving you feedback and causing the blackout. run a wire from the ground contact on your plug back to a spot on the tongue and secure the end of the wire to the trailer at that point. Do not rely on the contact of the trailer with the ball hitch to establish a ground.
There is an existing plug behind the left side tail light (look up from under the bumper). Get the proper tee-connector and plug it in.
Make certain that the wiring is connected properly but also, check the ground wire. Don't count on the hitch to be the ground for the trailer. There should be a ground wire that goes to the electrical plug, make certain that it is connected properly.
You must connect the blue remote wire for the speakers to work
The wire may or may not have been factory installed. They should be located either just left or just right on the hitch receiver.
For a 7-way trailer connector, the right turn signal wire is green. The left turn signal wire is yellow. The ground wire is white. The tail/marker wire is brown. The brake wire is blue. The batter wire is either red or black. The back up wire is purple.
AnswerA fuse that keeps blowing could be many things especially on a new vehicle were everything is computerized. if you want to start with the easier situation, replace the blinker module on of the resisters might be bad if not that then you r going to have some fun tracking wires through your truck to find out what wire and where is it touching ground. -----If you have a trailer hitch then please check that wiring first. It is common to find corrosion in trailer wiring at the point where the trailer wire hooks into the original harness.
If you purchase a hitch for the blazer and I'm assuming the 95 thru 2000+ probably use the same hitch(?)there are holes already predrilled in the blazer frame and the mounting bracket on the hitch will bolt up without any problems....i have a 95 and purchased mine from UHaul, it was the newer round style.....only took about 25-30 minutes to install it.Also look up in the wiring(drivers side)and you might find the trailer wires(5 wire or 7 wire)already there....all this makes it a breeze to install your own hitch!
In a 1991 Ford e150 Econoline Van, the wiring color code for the stereo is easy to distinguish. The radio battery constant 12v+ wire is green/yellow, the accessory switched 12v+ wire is yellow/black, the radio ground wire is the chassis, and the illumination wire is blue/red. For the front speakers, the left front speaker wire (+) is orange/green, the left front speaker wire (-) is black/white, the right front speaker wire (+) is white/green, and the right front speaker wire (-) is black/white. For the rear speakers, the left rear speaker wire (+) is pink/green, the left rear speaker wire (-) is pink/blue, the right rear speaker wire (+) is pink/blue, and the right rear speaker wire (-) is green/orange.
I bought a trailer hitch for mine and it came with a wiring harness that plugs into an existing plug inside the driver side rear hatch panel area. It didn't work and would not override the third brakelight like it was supposed to. So I just bought some electrical connectors and wired direct into the existing wiring after removing the rear tail lights. Make sure you have enough wiring to reach the center of your hitch and some slack. Throw away the harness that comes with the hitch, it will be too much of a pain and probably won't work anyway.