I have a 1999 Astro with a strange problem, the heater blower stays on at all times. This happened while I was on vacation, so I came back to a dead battery. After connecting jumper cables, the heater blower started without keys in the ignition. The van does not have a remote starter.Any ideas where to start looking?
I went out and tried to see what I could do with this after I posted. After I pulled the 30 amp A/C fuse I heard the fan relay drop out. When I put the fuse in again the blower worked fine. Does anyone know where I can get a copy of the wiring diagram?