I found this board searching for answers to the EXACT same problem!!!! I turn key, ABS light stays on ac dont work windows dont work..bogged down till 20 MPH fan doesnt seem to work because it overheats if let to idle this way...used to be jiggling the key would correct it then sometimes it just magically corrects itself if turned off and left to sit a while. I have had ignition replaced 3 times and it WILL fix the issue but only for a few weeks then it does it again. Mechanic said it would take a possible long hunting expedition to find the source of the problem and lord knows how much money to find it and fix it. If you have found an answer since your post PLEASE share it and if anyone has any idea what it could be please respond. Maybe not related, mechanic doesnt think so, but twice this happened right after my water pump and ac compressor went out simultaneously which in and of itself is odd since mechanic assures me the two arent connected or related by anything that could kill them both at once.