Electric windows not working.

[swoggles]

Hello guys and girls. Vrs front electric windows not working!! They intermittently worked when I bought the car, heavy rain made them stop working. Currently the switches do nothing, both sides. Poked around with a voltmeter and the door has power to it.  All other function's work, mirrors, door lock/unlock buttons. Bridged 12v to pin 5 on the plug on the motor and it was alive again until removing the key and locking the car. So motors and switches do work but don't seem to be sending signals. Is this classic convenience module problems? Want some advice before I purchase one. Thanks.

[AnnoyingPentium]

I'm still thinking the motor really, and it's not really a painful job. @Breezy_Pete is the man you should speak to about all that stuff. Got me out of a right pickle with my dead electric windows.

[TMB]

The electronics for the windows are in the drivers' window motor & can fail. I would also check the wires inisde the rubber door bellows as they can snap. I had it on mine where they were making intermittent contact.

Edited 26 November, 2022 by TMB
Spelling gaff.

[TMB]

 

[swoggles]

Awesome cheers man I'll have to give him a shout. The wiring is ok I think and the motors worked perfectly once I bridged those cables. Went up down up down, only once I removed the key and locked it did it not work. Hence me thinking something with convenience module, that controls windows as well? 

[Breezy_Pete]

What year is the car? 

Earlier cars had CAN bus to the window motors, later ones only talk to each other by LIN and have no central control. 

Part numbers of the LIN ones begin 6Y.

[swoggles]

2005 vrs

[Breezy_Pete]

OK so a later one, I'm a bit confused about which wire you're sticking 12V on to get action, is it on the 8-way or 6-way connector?

Wire colour?

[swoggles]

On the motor there are two plugs. One has 2 wires the other something like 8 yea. Red and white wire to blue yellow.

[Breezy_Pete]

I don't understand how that's working, that blue/yellow wire is an input from the lock module. 

See if you have 12V on pin 2 of the 6-way when ignition is on, black/blue wire. I have a feeling that may be missing.

[swoggles]

It worked once. Awesome I will check that Monday at work. Thanks. Are you the guy who fixes window motors? Have to send you mine if it the problem.

[Breezy_Pete]

Yep that's me, well worth checking for that ignition switched feed, it comes from fuse 11. 

 

[swoggles]

If i dont have 12v on there and fuse is good, whats that mean? Motors no good? Neither of them are working on any switch or key in the door opening  closing.

[Breezy_Pete]

Broken wire in the door bellows, if fuse is good but no 12V at that pin with ignition on.

Key in door lack of action does point to a poorly motor module.

[swoggles]

I'll do these tests see what I have. If no good I'll message you Monday. Cheers for your advice so far 👍 

[Breezy_Pete]

No problem.  

[swoggles]

Had a poke with the meter. There's 11.4v on that black blue wire, pin 8 on the plug. There's 12volt to pin 2(red and white wire). Also 12 volt on the second black blue, on the plug with just 2 wires (black blue, black white). So it's not a broken wire right? 

[Breezy_Pete]

6 minutes ago, swoggles said:

12 volt on the second black blue, on the plug with just 2 wires (black blue, black white). So it's not a broken wire right? 

Yep, that's the one I was thinking might be absent.

[swoggles]

Hmm, any ideas then? Not being an auto electrician I'm running out of ideas. Convenience module? Fuses are good, wiring seems OK,motors do work when they actually have power. Switch seems OK as all the switches don't work rather than one part of the system.

[Breezy_Pete]

I thought you said it doesn't work via key turned in door lock? Or doesn't always/reliably do so?

If there are no broken wires, it's almost certainly the driver's window motor module.

[swoggles]

Yea correct, doesn't work with key in the door at all. OK so it's just the three torx bolts and send you the whole unit? Motor with module? 

[Breezy_Pete]

Yep, I'll PM you shortly, just about to drive for a little while though.