i have aftermarket power door locks with an aftermarket alarm and sometimes when i hit the brakes kinda hard, my doors unlock. they even unlock sometimes if i hit a big bump. they always re-lock though after. anyone know whats going on?

 

yes you have a loose ground check it and tighten it..

 

ground from what? the brain, locks, siren? etc.....

 

Your having problems with the locks locking and unlocking.
It's the wiring for the locks, start a point a and work your way to point b checking all connectors and grounds to make sure they are tight and corrosion free.
That should do it.

 

re check the wires from the actuators (sp?). a wire might be loose.

 

its most likely the wiring from the brain to the relay

 

sounds like someone spared the solder and went with the *shudders* crimp connectors. Always solder that ****.