My window won't operate at all and I'm led to believe that this is a common 'Z' problem.

 

The motor and switch have been checked and appear ok so is the problem with the regulator? If so, can it be rectified or is a new one required.

 

Cheers!

normaly they are prone to dry solder joints, remove the black box in the drivers door and resolder the connections in it, hopefully should sort it for you, also try wiggling the window switch while trying the window. hope this helps

The window amplifier will be the culprit, as above

Cheers guys, your assistance is appreciated.

i have a working one on my breaker, its a black box that sits inside the drivers side door card

All what you need to know and how to fix it here for free is here:

 

http://www.300zx.co.uk/forums/showthread.php?t=137368

 

 

 

Jeff TT

Cheers Jeff, much appreciated.