[sam187st]

hi all

im new to all this, so if any body can help that would be great.i have a 1987 735i, its my first car. and i know nothing about fixing cars.my locks suddenly stopped working as they were(correctly).i went up to my door one day and only my driver side door would open when i turned the key. i cant open any of the doors besides driver side including the trunk.

whats the problem ive herd some suggestions like a fuse but its not that i checked all my fuses.i dont know how to trouble shoot this problem if it were a relay problem how can i find out?if its some kind of module problem how can i find out?

i cant even manually open the doors from the inside its crazy.i un hooked the actuator on the passenger side door so it can be opend for the mean time,i havent much money to fix the car, and i know these cars are expensive for parts and labor so im hoping theres a quick and cheap way to fix this if there is one, can someone tell me how i should approach this problem?.

one more thing, if its the actuator? how can i tell if its working or not??any way to test it?

thanks for any help