Power window Buick

[kaycee]

At witts end here on my 02 Buck Century, drivers side rear window wont roll down all other windows work . Wont roll down from master switch (front drivers side)works all other windows .Got new motor / regulator swapped it out same problem ,swapped door switch out to other side same thing no roll up on drivers rear. allso old and new motors swapped over and still wont work on drivers side. Have swapped relays around and have power all the way to motor WTH am I missing here

[Getter-Done]

Wires sometimes break where they run through the door.

They may not appear to be broken because the insulation is still intact.

[kaycee]

I got power all the way to motor on the old and new motor sand they both check out with test light.

[Getter-Done]

Have you plugged the old regulator in (Outside of the door)?

Just to see what happens.

[kaycee]

Yes it rolls up and not down on both new and old reg /mmotor will go up and down on pass. Side

[Getter-Done]

I found a wiring diagram online.

That is the best picture I can get.



So you have both up and down wires that have 12 volts?