anything and everything ,best advice here is to ask a local mechanic to have a look .sorry its one of THEM let a professional look and earn there keep as if you listen to so called experts you will spend a fortune on unecessary parts.As for google and you tube experts ?? or even worse the two pint bar room mechanics, no take my advice this old dinasaur who remembers starting handles and manual chokes and that is call a local man to have a look first .
Sorry to say, but it is a dealer item. BCM's are only programmable one time. You have about 1 in 1000 chance of getting one from a salvage yard and it works. Mainly from the security end of it.
Have to get access to the switch in the door panel
& door some voltage tests
Going to be difficult without a wiring diagram to
actually find a problem
If the switch & motor works, remove the door panel &
replace a broken window regulator
