I turned my AC on two days ago and it wasn't working. Then I tried the heat and it didn't work either. Nothing works on the temp controls. I went through the fuses today and found #8 fuse under the dash, which is for the engine controls (have no idea what that is). The fuse for the fan motor is fine. When I replaced the the fuse and turned the ignition on the fuse blows. My guess is that there is an open wire touching somewhere. The problem is I don't know what to look for since I don't know what the engine controls are. If anyone know what the engine controls are please let me know. Thanks.
