Truck Repair: 97 1500 4x4, internal switch, wiper motor

Question
I have a 97 sub w/ puch button 4wd , when i push the button to go in to 4wd hi or lo nothing happens .. there are no lights at all even on the 2wd button ... the only thing i have checked are the fuses  

Answer
what i would check on this is the ele. motor that puts the 4 wheel drive on. turn the key on "not start" block the wheels go under the truck have a freind push the button.can you hear the motor turning if not check the motor. if so check to see if the gear on the motor isn't striped .also make sure you have power at the motor when the button is pushed. your lights wont come on till the motor turns and makes a contact on a small internal switch.this motor looks like a wiper motor. let me know how this goes and if you have any other questions just ask thanks