G50 Power windows not working properly

[shanec86]

Hi guys, today i had spent quite a long time working out what the deal is with my power windows. When i bought the car the previous owner said the 'amp assy' was missing from the drivers door. After pulling the trim off sure enough it was missing, so i bought one off an american ebay store.

After putting the unit in, things still dont work as they should. Heres a quick rundown on what happens.

Drivers window does not go up/down/auto at allAll passenger windows go up/down if you use the switch on doorCentre window switches on console do nothing (light up though)Window lock on console does work

Now after looking at the FSM it wasnt much use because i do not have a BCM being an 89' model (RHD JDM) so this is what i have come up with.

Drivers door 'switch' -Black -> yellow/black = UPBlack -> green/red = downBlack -> blue/red = auto down

All these wires i have traced back to the 'Amp assy auto p/w" module further along the door. While switching and measuring with a multimeter i can see that there is a signal at the 'amp assy' module.

Now on the plug to the module there is 8 wires:

Black-------White----------Yellow/black---Blue ROW1

Blue/Red---White/Red----green/red-----yellow ROW2

Black = ground/earthWhite = to centre switches on consoleYellow/black = from switch (up)Blue = Window RegulatorBlue/Red= from switch (auto down)White/red= +12vgreen/red= from switch (down)Yellow= Window regulator

Next, i fed positive from the white/red into the yellow wire and negative from the black wire into the blue wire and i could manually get the drivers window to go up and down (depending on polarity ive set there)

Next i fed the white/red wire into the white wire and the switches on the center console started operating all the windows as normal!

Now all this tells me the 'AMP Assy Auto p/w' module i have bought off ebay is faulty??

Any ideas, because manually doing the job of this module seems to make everything work, so logic says its faulty?

[lino]

I don't have an answer for you Shane but Im sure someone here will have something to offer you. I just wanted to share a thread that may help you in case you haven't already seen it:

zer...eeded

[shanec86]

Thanks lino, didnt see that thread.

It appears (well obviously as i bought it from america) that i have the model with part # 28515 60U00

Not that i see this would make any difference as the person who sent me this item also sent a small section chopped of the wiring loom, its wired exactly the same way.

I opened the box and didnt find a whole lot, i manually triggered the relay's although it didnt do anything, there is power to the board but it is totally lifeless. Im going to take it into work tommorrow to see if maybe the diode is fried or somthing. In other cases i wouldnt even bother and just go get another one from the wreckers, although its a little harder to find parts for these cars in aus

[shanec86]

Well ive figured it out. After reverse engineering Nissan and drawing my own wiring diagram i have figured out how this thing works.

It seems as though there is a difference between the JDM/USDM modules, although quite small.... and its with the two large white wires. After swapping the 12v with what i thought was the centre console wire around, the driver window started working, and then bridging those two wires together so they both had 12v, the whole lot started working. So thats how i have the USDM module working in my JDM Q45.

On another note, rang nissan who wanted AUD$150ex Japan for #28515-60U00 and AUD$380ex Japan for #28515-52A00.... go figure, the USDM part is a hell of a lot cheaper and its basically the same thing.