so ive been struggling with my 09 acadia ive switched its fuse panel , ignition switch i unpluged onstar because it was cuausing a fuse to blow every time i replaced it and it helped that issue , so now i have another issue my gmc wont start as i turn the key and no crank so i pull the key out and the display dash is on i can hear the transmission on basiclly its like i never took the key out so everything is on still after i take the key out so i start pulling fusses pcm/ecm/tcm/bcm as i pull them i hear the trans turn off the engine turn off so i plugg them back in and you can hear the tranny and engine turn back on as if i had the the key in the ignition but i dont , i also disconnected the battery and they went off right , reconnected it an same issue everything came back on as if the key was in the ignition ,. so im lost here thinking it can be something electrical or the computer 🙁
Well normally that's a problem with the ignition switch or some part of the anti-theft system. But since you replace fuse panel stuff there's no saying what could have gone wrong with all those wires I would start by paying a locksmith who does and I set key systems to look at it to see if perhaps it's just that and he needs to replace a module or the switch and then reset the key to the system
thank you ill look in to that and ill get back to you as soon as i figure it out .