93 suzuki intruder. Tail light stays on. no brake like when pressed, no turn signals???? Help!!!!!!

Did not just answer this question

try the switch on the rear brake pedal, could be naff, or need a good clean, does it work on the front brake??

Spray WD-40 in the ignition switch and on the turn signal adapter. It works.

The brake light side of the bulbs is powered by the brake switch and travels thru the turn signal switch.
If the third brake light works, I would guess the problem is in the turn signal switch.

p park position should only light the tail light, so my guess is there is one filament of the stop tail bulb shorting to the other filament inside the bulb, try a new bulb

yep
look bye the battery top or in the side panels

Have you check all the bulbs condition? Check your fuses and the blinker coil.

It mught be the bulb that needs replacing or else check the wiring to the bulb for continuity in case there is a broken or snapped bit.If you have a voltmeter then you can test the voltage reading at the point of contact..Sometimes rust builds up and a simple cleaning would solve this.Hope this helps.

Have you checked for blown fuses?