I have a 99 XJ Classic. My power windows only work from the drivers door master switch. None of the other door switches work? The master switch has a lock for the other doors swiches but I have tried it both ways. Any thoughts what could be causing the other switches not to work?

 

It is most likely your window lock switch malfunctioning. When they go out you'll lose control of the windows independently. You can either get a new driver's door module (the thing has has all the window/lock switches on it), or you could try and take yours apart and inspect the window lock switch for damage. Some people have been successful simply shorting the window lock switch (effectively eliminating it). I mean really, when was the last time you locked your windows? Good luck.

 

I repaired that problem a couple months ago by installing jumper wire next to connector of master switch.
I connected tan wire (wire, providing + to master switch) to yellow wire (which provides power to rest of switches)
Check diagram.
Yellow wire can be also broken inside rubber boot of driver(most likely) or passenger door.
You can also open master switch to clean contacts.

 

This
There was actually a threa posted about this with a write up a day or two ago but I'm to lazy to find it. If you search on this forum a little harder you will surely find the answer.

 

Put the jumper wire from the yellow to the tan wire, windows work great!

 

Yup



A paper clip is only so reliable. Splicing in a connector wire is best.

 

Where is that connector located at. Cant seep to find it and Pro Demand isn't helping

 

The soldered pins in these switches tends to fall off. If you can solder, pull the switches and resolder them or:

Go the easy route and replace them.

If you want to do the work, here are some videos

Now if none of this works, then you have a wiring issue

 

I replaced the entire driver's door master switch with a newly manufactured one. I don't remember it being very expensive.

 

I posted links
19 dollars for drivers, 28 for passenger