My 98 Accord EX 4Dr passenger rear window has not worked since I bought the car a year ago. I finally decided to fix it since window problems are usually an easy fix. I replaced the motor which I verified was bad by a bench test with a battery. So I get a good motor in and the window still wont respond so I started to troubleshoot more. I tested the bad windows door switch out in the front pass door and it checked good so all switches are ok. Got a used master switch to swap, still same problem so I got out the meter and heres where **** gets weird.

My problem window is getting a constant 12 Volts (Up Polarity) to the motor, the window is just stuck trying to go up but since the motor regulates itself it stops. I went ahead and cut the motor wires (I have an extra motor wire that came with my new motor) and switched them to change polarity to the motor and sure enough the window came down then I swapped again and it went up. So I hooked it back up normal and tested the motor voltage when I press the switch down which turned out to be Zero Volts. Evrything seems to be *** backwards on this one window. I would have thought master switch but I already swapped that and I tested the door switch. I even traced the wires from the door switch to their other ends according to the hanes manual and it seems ok. I am at a complete loss.

Any ideas???

 

Update- I figured it had something to do with the control wires from the door switch to the multiplex module so I cut those two wires and the back window works fine from the back but wouldnt work from the drivers seat so I reconnected one of the wires (the "window up" wire) and the window wouldnt work at all again so I disconnected it and connected the other control wire (the down wire). Now I can put the window up and down from the back seat and can only put it down from the drivers seat. I bet that "up" control wire is shorted somewhere or something like that.

At least the window is now useable, I really could care less if I cant put it up from the drivers seat. The one window was the only item on the car that didnt work, everything else is 100% so I wanted the window to work.