Power Windows Issue - Thoughts?

[Corrupt]

So after 10+ years or so my bodge fix has come to bite me in the arse...

Long story short, when i first imported the car none of the power windows worked at all, checked all the fuses/relays and just to be sure replaced all the related fuses/relays, still no windows...

My bodge fix to get the car over pits and get them all working was to jam the relay closed (open?) so that it had power 100% of the time, even with ignition off, as kinda handy as it was this of course meant my battery was constantly being drained that lead to jump-starting/charging every few months. Not Ideal...

After replacing 3 (three) century batteries over that time i upgraded to the Optima Red Top about 18 months ago i have pulled out the relay completely and not had power windows since.

Anyone come across this sort of issue or might have a good idea of where i can look myself before i hand it to an auto sparky to hopefully solve? I'm almost convinced its not the switches/window motors etc as they were working with the relay bodged, my best guess is a bad wiring connection SOMEWHERE along the line, a clamped/squashed wire or a fuse box problem.

I might cross-post this on the Facebook group if i need more eyes on it.

 

[pretzil]

I think the little ecu behind the radio with yellow plugs has the computer that controls the windows.
Maybe it's faulty?

 

[BCX]

Power windows have a lot to do with the ETACS system, which is clipped into the back of fuse box.

 

[Corrupt]

I think the little ecu behind the radio with yellow plugs has the computer that controls the windows.
Maybe it's faulty?

Hmmm i wonder if there is any way to test if it is faulty? other that getting another one and swapping them over...

Power windows have a lot to do with the ETACS system, which is clipped into the back of fuse box.

I will certainly check this out, that whole fuse box area will be my main focus of investigation.

Cheers for the ideas so far, will update with any progress i make.

 

[BCX]

If got a spare or two if you want to try another one

 

[BCX]

I think the little ecu behind the radio with yellow plugs has the computer that controls the windows.
Maybe it's faulty?

Yellow plugs is SRS system.

The other small black box behind radio is the receiver for the keyfob to unlock/lock car. This interfaces with ETACS

ETACS controls all body functions like central locking, interior light and power windows.