Rear Window Problems and the Window Lift ECU

jeffw · 26th October 2009, 09:27 PM

Can anyone enlighten me as to where to look for an intermitent fault that stops rear windows from operating ? They never work from the door switch but most of the time from centre console switch but even then only after car has been running for about ten minutes . series one tdi 96 if that helps .

**langy** · 26th October 2009, 09:37 PM

Go behind the glovebox and disconnect-shot of wd40-reconnect the window lift ecu. I was posed the same problem on a 4 door, and even though the switches/interlock/fuses checked out, it stubbornly refused to work until I wiggled the ecu.
Yet on my 2 door, I 've never had a problem with the windows- go figure.

**discomuzz** · 26th October 2009, 10:41 PM

The control unit under the dash passenger side has to be removed and resoldered.

Don't panic. It is a 'normal' fault with these things and an easy fix.

There is a dry joint on the circuit board.

Search this on the forum and you will find colour photos for the whole process.

**discomuzz** · 26th October 2009, 11:15 PM

Originally Posted by disco_ute

my 93 Rangie has had the same prob...... so i cut the rear doors off

Mick

Or you could take this option!

It'sNotWorthComplaining! · 27th October 2009, 08:55 PM

Fixing non functional rear windows
Here is the fix

jeffw · 28th October 2009, 10:10 AM

Thanks for the advice , pulled out the circuit board and looked okay but resoldered anyway and everything works again.

It'sNotWorthComplaining! · 28th October 2009, 10:23 AM

Originally Posted by jeffw

Thanks for the advice , pulled out the circuit board and looked okay but resoldered anyway and everything works again.

You will find that the solder joinrs in the link I provided are the exact joints that went on mine. So there must be thousands of Monday or Friday production boards out there.

**discomuzz** · 28th October 2009, 10:44 PM

Originally Posted by jeffw

Thanks for the advice , pulled out the circuit board and looked okay but resoldered anyway and everything works again.

Excellent!

That's what I love the most about Disco's. Simple logic!

**davros** · 30th October 2009, 01:29 PM

Deleted

**Bill Flyer** · 5th March 2010, 01:44 PM

hi just wondering if any body can come up with a possible solution my tdi 300 98 model rear window wont go down for 5 to 10 minutes approximatly after driving around a bit they eventually work . tried resoldering the board as described in discoweb but still no go i did notice my board looked different to the one depicted in discoweb . should i look at purchasing another board or look for some other problem ,also can you tell me where to purchase a new board if nessasary .thanks for your help

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Rear Window Problems and the Window Lift ECU

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