Help with wiring color diagram for 1995 GMC Yukon brake lights turn signals?

SOURCE: Trailer wiring 7 way

dO NOT SPLICE WIRES.. You bought a 45000 dollar truck, spring for a wiring T --25 bucks.. ( plugs between main harness and Tail lights.. ) --Available at most good auto parts.. Painless wiring also has a kit.

If you did already cut or splice into your wires, take that **** loose.. Shrink wrap the dammage.. Silicone over srink wrap.. Wire will corrode.. if you did manage to get spliced wires to work,-- in a few years or sooner you will have issues with the connections..Can you say short circuit.. Moisture and loose connections are a thing of the past with sealed tap in wiring.. Plug and play..

If any of this is over your head, get a friend who knows, or a tech to help.. Don't jerry rig a 45,000 dollar new Truck.. Come ON..!!!!!

SOURCE: 2000 Mazda 626 brake lights

It may be the switch on the brake pedal, it should be located on top of the brake pedal arn.

SOURCE: Looking for a wiring diagram for a 2006 Ford Expedition

7way- black is 12volt (power), brown, running lights, yellow is left turn signal and stop light, green is right turn signal and stop light, white is ground, blue is brakes, and orange is aux power (can be back up lights, if trailer equipped w/ them). 6way is the same, minus orange wire. I have run into some variations to the above color codes (brown, yellow and green only-sometimes these 3 are different than stated, but only mixed as that group, as to what they control- example would be green is running lights, brown and yellow are turn signal and stop lights, the others should be as stated), if you have any trouble with things not working properly, it may be due to these variations, although the above are pretty standard. If you have an ohm meter you can check as you go (check for power at black wire- should be constant 12v, turn on turn signal and check for power-it will fluctuate from approx. 12 volts to 0 volts as the signal power pulses in the wire) hit the brakes, blue wire should show power, etc. Let me know if you need more help as you go.

SOURCE: tail light wiring connectors and wiring diagram

A test light checking each connector would be faster and easier to do. Maybe somebody may have a illustration for you but by far a simple test light is all you need with a helper turning on the different lights as you check them out and writing all your findings down

SOURCE: 2004 tail light wire diagram/colors, need both bra...

I can't get my brake lights to work. the rear one in the window works but the tail ones won't work.do you have any ideas as of what to try to fix this problem. Thanks!
JO