Problems with my Signal Lights

I have a problem with my signal lights. I turn the left signal on and my left and right signals flash including my dashboard lights. I turn on the right signal on and only the right signal lights blink like they are supposed to. Do you all have any Idea what it could be?

when u turn on your left blinker does both your tail lights go on, or just on your dash

poss a faulty or not connected "HAZARD" light switch

or brake light switch....

When I turn the left signal both sides start blinking and my dash lights do too. Thanks for the info.

check the turn signal cam also could be faulty they do go bad the truck i drive for work. had to get it replaced cause it was blowing the main fuse to make the truck drive it was weird

its a ground problem, feeding back through the brake lamp cir to the ipc....i do eletrical work on cars for a living and see missing grounds in light circuits do some realy weird things. check your light grounds and check the sockets for opens...

Thank you all very much. Ill try all of them and see what will work.