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Windows open with ignition

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Old May 20th, 2020, 11:21   #11
ASt85
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Originally Posted by aaronturbo View Post
Thanks i will take the switch pack apart for a start, will also look at alarm siren if this could be linked?
As yours is the cabrio the other possibility is the windows/roof control module - as you raise or lower the roof, the windows are supposed to drop around 3 to 5cm,. A module faulty can fully drop the windows on opening/closing the roof as well as stalling the roof opening/closing.

The other thing to consider is the state of charge and the general condition of the battery including corrosion on the terminals & earths.

When my old 850's battery going towards flat, turning the key to position 1 or 2 would fully drop all four windows.
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V70 SE 2004 2.3L T5 Geartronic, C70 2005 2.0T Automatic, Sold 2.4l 20 Valve Automatic Torslander Sold 854 GLT 20v Auto
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Old May 23rd, 2020, 16:55   #12
andrewc1267
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Originally Posted by mike16 View Post
C70 2004 convertible. When you turn ignition to position 1 or 2 all 4 windows open. You can close them but very annoying and dangerous when parking if you don't remember.
I would suspect broken wires in the door loom
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Old May 28th, 2020, 10:17   #13
aaronturbo
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As yours is the cabrio the other possibility is the windows/roof control module - as you raise or lower the roof, the windows are supposed to drop around 3 to 5cm,. A module faulty can fully drop the windows on opening/closing the roof as well as stalling the roof opening/closing.

The other thing to consider is the state of charge and the general condition of the battery including corrosion on the terminals & earths.

When my old 850's battery going towards flat, turning the key to position 1 or 2 would fully drop all four windows.


Hi,

I have read about the roof module however my roof opens and the windows drop and raise just as they should, no problems there.

I will consider the battery as well because i suspect the battery is a bit under powered for the car as previous owner had replace with a cheap halfords battery 56 ah i think, even tho i think its in good health. i will give the battery posts a good clean also,

I have checked all the wiring for the door, and had a little look at the switch unit and this looks fine and clean.

I have also check all earth straps and points on the car, the ignition switch and wiring the relay for the windows, so im coming to a loss as to why it dose it,

Mine only dose it in pos 1 if i click the key to pos 2 it stops and the dash lights up like normal. its very strange and annoying if i forget about it.

Thanks for your input guys.
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Old May 28th, 2020, 10:34   #14
ASt85
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Originally Posted by aaronturbo View Post
,

Mine only dose it in pos 1 if i click the key to pos 2 it stops and the dash lights up like normal. its very strange and annoying if i forget about it.
It could be the battery , although an 056 only provides under half the power (333Ah) than the minimum recommended 065 (760Ah), whilst it might struggle to start the car on a cold morning, if it is getting the car started it is unlikely to be the reason for the windows drop.

Is it worth putting jump leads on to your battery from another and seeing if the same thing happens?

If it does then the battery isn't the cause.
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V70 SE 2004 2.3L T5 Geartronic, C70 2005 2.0T Automatic, Sold 2.4l 20 Valve Automatic Torslander Sold 854 GLT 20v Auto
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