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Passenger Rear Window goes down but not up

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Old Jun 11, 2021 | 08:57 PM
  #1  
Goose405's Avatar
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Default Passenger Rear Window goes down but not up

2001 Discovery II

About a week ago my rear passenger window stopped going up. I've watched a video videos and checked other threads but haven't seen a clear answer on where MY window ECU is. Some of the videos don't look like what I have behind the glovebox.

Also I can't control either rear window with the control in the back.

I've checked the following on the window:
- replaced the motor
- tested another switch from the rear and front
- checked the rollers
- pulled the window regulator and checked that wasn't broken

Which one of these is the Window ECU?

 
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Old Jun 12, 2021 | 07:35 PM
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That's because there is no window ECU. The windows are controlled by the Valeo BCU which controls most if not all of the functions of the Disco.

I would suspect window switches. When I got my 2000 Disco last year, 3 of the 4 REAR window switches were bad. 3 of 4, in a car that probably no one ever sat in the rear of.


 
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Old Jun 12, 2021 | 08:38 PM
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Originally Posted by nashvegas
That's because there is no window ECU. The windows are controlled by the Valeo BCU which controls most if not all of the functions of the Disco.

I would suspect window switches. When I got my 2000 Disco last year, 3 of the 4 REAR window switches were bad. 3 of 4, in a car that probably no one ever sat in the rear of.

The switches work when plugged into the front controller.
However neither rear door switches work.
The rear passenger will go down (when using the front control) but not up
 
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