Hi guys,
I recently changed the battery on my 95 LS400 and now the window controls from the driver side aren't working for the other three windows. The windows all work individually but not from the driver controls. I have tried rolling them down and holding the switch then rolling back up and holding again for the individual windows but to no success. Does anyone know how the reset works for this gen? Could something have gone wrong in my master control switch? Thanks in advance.

 

Your driver door ECU is most likely toast. Been there, done that.

 

Would this be the case even if all the other controls function properly?

 

I wonder how the former battery was drained. Was it drained very slowly not driving the car for many days?
Slowly discharging battery often causes the stray electrons problem at around the threshold voltage level of microprocessors. There is a possibility that the initial reset function of the door computer was not working well. I 'd try again to reset the computer disconnecting the battery and wait long enough to be stray electrons are gone away and connect the battery again after that. Waiting time often needs several hours or more.

 

Textbook case actually. Either no control of other windows from master (driver door) or intermittent function.