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-   -   2003 disco II window failure (https://landroverforums.com/forum/discovery-ii-18/2003-disco-ii-window-failure-59619/)

paul geo Jun 7, 2013 08:47 PM

2003 disco II window failure
 
hi all,
2003 discovery II drivers side front window stopped working the other day(all other windows work). i switched the drivers side switch to the passenger side window to check the switch. it worked, so the switch is fine. i took the drivers side door cover off and tested the motor with a hot lead and ground, works fine up and down. when i press the drivers side window switch i hear a click under the passenger side dash. from reading the post i narrowed it to the bcu. i put my hand on the bcu and pushed the drivers side switch and could feel the click in the bcu. i bought one on ebay and called my local dealer.
they said i could try it and get lucky??
they didn't know if they could reprogram it??
said it could possibly damage other electrical components??
any suggestion would be helpful
thanks

SuperSport Jun 9, 2013 12:03 PM


Originally Posted by paul geo (Post 402693)
i bought one on ebay and called my local dealer.
they said i could try it and get lucky??
they didn't know if they could reprogram it??
said it could possibly damage other electrical components??
any suggestion would be helpful
thanks

Sounds like THEY want to sell you a new one.

Disco Mike Jun 9, 2013 12:42 PM

Have you tested the actual window motor, do you have power to it, can you hot wire it to work?
I wouldn't jump into a BCU too fast cause I doubt it is the problem and if it has to be replaced you also must replace the ECU from the same donor vehicle, so do some more checking.

paul geo Jun 9, 2013 07:19 PM

yes mike I took off the door cover and put a hot lead and ground to the window motor, it went up. then reversed wires it went down. worked fine also switched, switches, its not the switch. clicking sound coming from the bcu when the window switch is pressed in.

Savannah Buzz Jun 9, 2013 07:54 PM

Odometer won't like things being swapped either. I would wonder what dealer or indy shop would charge for re-program; vs cost of a device capable of it (possibly a Hawkeye, but an actual user should comment).

JimBonner8 Jul 1, 2014 12:50 PM

Bump.
Any resolution to this?
I've a 2001 Disco II exhibiting very similar symptoms...

Thx

Pastor Bob Dec 10, 2018 10:25 PM

Let's keep this rolling. I have two discos with this problem. 95 D1 and 02D2. Would love to know the fix for this.

CollieRover Dec 11, 2018 06:58 AM

You can put a new BCU in, I have done it, albeit not for this issue.

Could it be a bad relay on the BCU? You May be able to find that, solder it out and replace, I mean, I probably couldn’t.

Pastor Bob Dec 11, 2018 11:17 AM

I did take the bcu out of my 1995 D1 and resoldered a dry socket which repaired the problem I was having with the rear windows being inoperative. I found that on youtube but I haven't seen anything on the driver window.

Fast951 Dec 11, 2018 11:21 AM

Sometimes the power wire to the window motor on the driver's side breaks inside the rubber conduit between the door jamb and the door. Especially on higher mileage Discos where the door has been opened/closed many thousands of times. Check that.

Here's a link to my window dilemma story, and the fix.
https://landroverforums.com/forum/di...-wiring-88550/


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