my 90Xj everytime i go to unlock my doors the front two open fine but the rear ones always seem to give me trouble!!!!! any ideas??? i have to keep unlocking them untill they open or sometimes open them by hand because they wont open!!! they close fine, but open with such a pain!!! any ideas were i can start my hunt for this fix???

 

from what i have heard it is a common proble with the back doors to do weird stuff. Mine seem like they are starting to sag. I have no idea how to fix your issue just thought I would share

 

It's a normal problem for these rigs. Mine does it too, its just a weak system. I've thought about rewiring it, or stuffing 14 volts through it, but I don't wanna fry anything.

 

maby the dude that had it before you took them off

 

From what I remember the power runs through the driver door to the front passenger door, and then to the rear. Overtime the system looses the amount of volts it takes to work the back doors. The write up tells you how to wire in a relay into your passenger kick panel and it gets the volts back up to 12.
anyways heres a link to a write up

http://naxja.org/forum/showthread.php?t=983428

 

i've had the same problem for a few years now. whenever i drive friends around and we need to open a back door i'm always telling them "don't open the door until i say you can." i hit the button once and then they try to open it and then the locks won't budge after that, and i always find myself yelling at them "dude, i told you to ****ing wait!" so i lock the doors again, and then they try to open them, so we rinse and repeat the cycle till i tell them to back away from it, lol.

i've thought about splicing the wires and reconfiguring the set up so that way the full amount of volts gets through and the door pop without any problems. just never actually sat down with the wiring diagram and figured out a plan yet though.

 

right on, i'll try to look into wiring them. thanks again guys. very helpfull.