[keon2k]

Hello.

I'm an owner of an Aston Martin DB7 Volante CAB.

I've got a problem with my windows, i've changed both window ecu's and both window motors.
I've tried several times to do the reset memory function on the ecu's.

When I open the doors, hold the door latch the window wont go down 15mm. But when I open the door and it looses "contact" with the chassis the window rolls all the way down to the down position. And when I close the door it stays down. So I have to go into the car and take on the ignition again and roll it all the way up. And when I open the door again to go out of the car it rolls all the way down again.

So my windows stays open all the time. I've had this problem for 2 years now! And Im getting frustrated as hell!

Hope someone can help me out. I'm an car mechanic, but this window problem is so annoying i can't figure the problem out!

 

[V12 volante man]

Hello.

I'm an owner of an Aston Martin DB7 Volante CAB.

I've got a problem with my windows, i've changed both window ecu's and both window motors.
I've tried several times to do the reset memory function on the ecu's.

When I open the doors, hold the door latch the window wont go down 15mm. But when I open the door and it looses "contact" with the chassis the window rolls all the way down to the down position. And when I close the door it stays down. So I have to go into the car and take on the ignition again and roll it all the way up. And when I open the door again to go out of the car it rolls all the way down again.

So my windows stays open all the time. I've had this problem for 2 years now! And Im getting frustrated as hell!

Hope someone can help me out. I'm an car mechanic, but this window problem is so annoying i can't figure the problem out!

Hi matey, 2 years eh!!! WOW and good on yer for lasting that long before the sledge hammer got taken to it!!!

Are the connnections a one way fit or will they go either way??? if the latter they could be the wrong way around?? I am also a mechanic by trade but old school type so electrics are NOT my forte but its worth a punt to check.

The fact they are working still albeit not correctly says they are ok so maybe it is just a crossed connection or something or what you have fitted is DUFF.

Last resort is get a auto electric guy on it.

Regards

 

[keon2k]

Yeah 2 years, have been set away in the workshop hall for a long time now. Hehe!

I'm about to tear it all apart now to check everything. But if I remember correct it's a one way fit. :/

Also what I noticed is when I'm pressing the window up button it goes all the up to middle and stops. If I press it again it goes some inches more up and stops. And have to press it again then it's all the way up.

This happens on both driver side and passanger side

 

[WayneB]

I am wondering If the problem is simply the window is getting stuck in the guide tracks in various positions fooling the window ecu into thinking its fully raised and halting it, a mechanical problem not electrical.

The reason it works when the door is open may be down to the resistance of the door weatherstrip is adding to the problem, causing enough extra drag on the glass to trigger the issue.

Adjust and lubricate the tracks/weatherstrip with lithium grease or similar and see If that cures it.

Old Ferrari's have weak window lift motors that couldn't pull the skin off a rice pudding, have had many happy hours adjusting tracks etc to get them to work consistently.

 

[V12 volante man]

I am wondering If the problem is simply the window is getting stuck in the guide tracks in various positions fooling the window ecu into thinking its fully raised and halting it, a mechanical problem not electrical.

The reason it works when the door is open may be down to the resistance of the door weatherstrip is adding to the problem, causing enough extra drag on the glass to trigger the issue.

Adjust and lubricate the tracks/weatherstrip with lithium grease or similar and see If that cures it.

Old Ferrari's have weak window lift motors that couldn't pull the skin off a rice pudding, have had many happy hours adjusting tracks etc to get them to work consistently.

Good point Wayne and should be tried first but if that does not cure it I would say you have 2 x duff units.

 

[keon2k]

I might try that out.

But that doesn't explain why the window is rolling all the way down when I open the door.
It should only lower aprox. 1 inch down when I open the door, but in my case it rolls all the way down.

I have to close the door and take the ignition on and use the window button to get the window up again.

Even if the ignition isn't on, when I open the door the window rolls all the way down.

The window works, I can make it go all the way down and all the way up when I'm inside the car and using the window buttons. The problem is the window drop issue. That it rolls itself down when opening the door. :/

Can't leave the car because when Im going out of the car the window rolls down and I cant get it up without going into the car again to get it up )

 

[WayneB]

If you have changed the ECU's and motors with no luck, it leaves the switches and wiring as another possible cause besides what I have already suggested.

If opening the door triggers the downward movement it could be one of the wires in the loom that passes from the door to the A pillar is making intermittent contact perhaps?

Maybe the connector in the A pillar is loose/damaged/corroded?