Okay, so on my 2002 golf, the passenger side fan doesn't work when the ac and fan is on. I've tried multiple times to get through the mass on info on the original thread but I still don't understand about the fan control module. It can either be that or the actual fan right? Something about the brushes/ armature getting messed up? Why would be my next logical step to diagnose the problem? We just had our first 90+* weather and I didn't like it much. I'm trying the Compressed air thing rigt now.