Golf Sport 2007 Engine Doesn't Turn On
I'm trying to help a friend, who has a Golf Sport 2007.
He told me that he drove all day normally. Next day, he couldn't turn on the engine.
We noticed that the battery was flat. We swaped the batteries and nothing happend.
We checked all fuses (inside fuse box and engine bay fuse box). I checked the wire fuse on the 5 wires that come up near to the engine bay fuse box, all fine.
I did a scan with VCDS and a plenty of faults came up, all apparently related to the flat battery.
The only relevant message was that there was no communication with the Auto Transmission Unit.
Any tips? Should I check if the unit is been supplied with 12VC? Or I have missed any step after replace the battery?
Thank you all in advance.