Well that's what I'll be doing as soon as we get a decent spell of nice weather. It's abit on the cold and wet side just now and I'll need a good bit of the day for this.
I've been asking around and gathering info for a while now, I bought all four electric window regulators, switches and door cards and I also took most of the wiring loom from a donor car.
I'll be swapping out the power wires as the electric windows need more juice than just the locks.
I'll be taking pics too for anyone who wants to see what's what.
It turns out it's actually really easy, the Mk4 uses this can bus system set up like a network in a star configuration. Each window reg has it's own brain that sends and interperets signals. Basically you have these little wires twisted together that come from each door and join up behind the dash with + and - on each one. You take a + and - bus wire from them to the ccm (comfort control module) and also to pins 8 & 9 on the cluster as long as the cluster has the numbers 920 in the middle three numbers of the part number. If you don't have that you need a program called vds pro to reprogram the ccm but I don't really know much about that as I don't need to for mine. My cluster has the right numbers so that's cool. Also the window regs part numbers have to match the ccm to make things really easy i.e. if they start with 1C0 then the ccm has to start with 1C0, it really saves a lot of hassle.
Anyway what happens is you press say the left rear window button on the drivers door, the signal goes down the bus wires to the ccm that interperets it and sends the signal out to the left rear door, the window reg takes this signal and knows exactly what it means so does the requested action, either open or close the window.
The same thing happens with the door locks too if you have the can bus system in the car. Signal goes down the wires and gets sent to all the doors to lock or unlock the doors.
I hope that all makes sense so far as it's down hill from here lol, only kidding
It all makes sense in my head anyway and that's important seeing as it's what I'll be doing to my car. I'll update this thread as and when I get the chance.
Cheers
I've been asking around and gathering info for a while now, I bought all four electric window regulators, switches and door cards and I also took most of the wiring loom from a donor car.
I'll be swapping out the power wires as the electric windows need more juice than just the locks.
I'll be taking pics too for anyone who wants to see what's what.
It turns out it's actually really easy, the Mk4 uses this can bus system set up like a network in a star configuration. Each window reg has it's own brain that sends and interperets signals. Basically you have these little wires twisted together that come from each door and join up behind the dash with + and - on each one. You take a + and - bus wire from them to the ccm (comfort control module) and also to pins 8 & 9 on the cluster as long as the cluster has the numbers 920 in the middle three numbers of the part number. If you don't have that you need a program called vds pro to reprogram the ccm but I don't really know much about that as I don't need to for mine. My cluster has the right numbers so that's cool. Also the window regs part numbers have to match the ccm to make things really easy i.e. if they start with 1C0 then the ccm has to start with 1C0, it really saves a lot of hassle.
Anyway what happens is you press say the left rear window button on the drivers door, the signal goes down the bus wires to the ccm that interperets it and sends the signal out to the left rear door, the window reg takes this signal and knows exactly what it means so does the requested action, either open or close the window.
The same thing happens with the door locks too if you have the can bus system in the car. Signal goes down the wires and gets sent to all the doors to lock or unlock the doors.
I hope that all makes sense so far as it's down hill from here lol, only kidding
It all makes sense in my head anyway and that's important seeing as it's what I'll be doing to my car. I'll update this thread as and when I get the chance.
Cheers