ARISTOh

iTrader: (3)

Just picked up my car from the dealership because they kept asking me for more labor pay and not able to give me any answers or results. Bottom line is I'm getting no power to or from my window ECU or any of the window switches. Sunroof work fine and all of my fuses are good.. Can anybody help??

neegroy

iTrader: (19)

maybe faulty wiring?

ARISTOh

iTrader: (3)

Negative. They used to work just fine, drivers side window motor went bad and now I don't have power to or from any window.. Speakers ad other electronics work fine

77i9

iTrader: (14)

I suggest finding the wiring diagram and start tracing to see where you're losing power

ntran18

iTrader: (27)

Check the fuses. Work backwards from the power source. Are the other windows working?

ARISTOh

iTrader: (3)

Where can I find the wiring diagram? All the other windows don't work either, Lexus wanted to charge me $125hr minimum 2 hours to trace the problem.. All fuses are fine and all window motors work with direct power to motors except drivers side. It's a 02 GS430 I'd like to trace the wires back myself and try to figure it out I'm sure it's something simple

2eXceL

iTrader: (2)

Might be the Door ECU, its the black box that controls the regulators, I believe this is in the Driver's Door, you will have to remove the Trim and take a look. But if its bad its kinda hard to test yourself unless you have a wiring diagram. At least you can check for Power at the ECU.
Take a look at Sewell Lexus or look for a used one to test out.

ARISTOh

iTrader: (3)

Lexus rested out all door ECU's and window switches already with known working components. There's no power going to or from window ECU's or Window regulators. I need to find another power source before it reaches the drivers door. Fuses are fine so it's something else.. Backwards starting at window switch it goes to door ECU.... Then what's next? And after that? And after that?

Thanks for your help guys

str8lucky

iTrader: (11)

I have similar issue, but only with just both rear windows and pass front window. But they work from inserting key.

ARISTOh

iTrader: (3)

Mine don't work with key either?

TrendsetGS

Do they work if you manually go to each door and roll them down using the door switch? If so, you may have to reset them by holding the switch up for like five seconds and pushing the switch down. let me know if this works for you.

str8lucky

iTrader: (11)

Mine does not work by manually going to each.

ARISTOh

iTrader: (3)

Doesn't work at all what so ever. Each window is permantly stuck in the closed position. No matter if I use the key or the door lock or each individual switch. Door ECU's and all switches work properly

DosyBoy

iTrader: (1)

Try holding up on the drivers side switch for 3 seconds then 3 seconds down, then try it

ARISTOh

iTrader: (3)

Nope, not even a click. It's like there's a fuse blown somewhere but there isn't? Even Lexus of Orlando checked.