I have a 2004 Pacifica with a power liftgate. It still works fine, but recently the warning beep that it is supposed to make while opening or closing has gone away. I am not sure what it is that makes the noise or where it comes from to replace it-- or maybe it just needs a new fuse? I would like to get it fixed- any ideas?

 

I had a similiar problem. Under the left tail light is a connector for the lift gate. I found it partially connected. I pushed the connecter tight and the liftgate and sound worked fine.