Wiring diagram 2001 zx6r

Fused 15A power feed to right headlamp. See attached diagram.

Wiring diagrams.

https://www.google.com/search?q=2001+gmc+2500hd+headlights+wiring+diagram

and

https://www.google.com/search?q=2001+gmc+2500hd+headlights+wiring+pinout

Plus

https://www.alldata.com/diy-us/en

..

The diagram is part of headlamps diagram. When you turn on headlamps, is there voltage at the headlamp fuse? Use a test light to check for voltage. If the fuse isn't hot, pull the relay, in diagram, use a jumper wire between cavities 30 and 87, note the diagram, That is switch side of relay, left side in diagram. Any reaction from headlamps when using jumper wire? The right side of relay, in diagram, is the control side, control side needs voltage and ground in order to energize relay. Terminal 85 is hot all the time. Terminal 86 is grounded by the bcm. I agree with other post, voltage and grounds are important. good luck

Do you know what a wiring diagram is for ? How to use a DVOM - digital volt ohmeter to test electrical circuit's ? None of the headlamps work ? hi or lo beams ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. Year , make , model an engine size. Under system click on lighting , then under subsystem click on headlamps . Click the search button then the blue link . Looking at the diagram i see fuse's light switch , multifuction switch , relay's - hi & lo an the headlamp assembly's .
Now watch this video
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia

Yea , an what would you like to know ? You have a direct short to ground on that circuit . Looking at a electrical distribution diagram to see what all that fuse powers should be your first step . Do you know how to trouble shoot a short circuit . Fuse # 26 7.5 amp powers light switch & multifunction switch . Free wiring diagrams here http://www.bbbind.com/free-tsb enter vehicle info. year , make , model an engine size . Under system click on lighting ,then under subsystem click on headlamps . Click the search button them the blue link. Study the wiring diagram ,get a DMM - digital multi-meter an test the electrical circuits . Could be anyone of these switchs , wiring etc....
Electric Testing Techniques You Need to Know

fuse box contact under fuse panel two orange wires bad contact here wiggle wires around light may come on

headlight switch is bad

look at your starter switch, headlight cut off

Use on demand 5. If you don't have a password let me know. Or I can email you the diagram. But i think it might be a fuse