05 Caravan, 315,000km
AC won't blow cool air, rear defrost doesn't work, turn signals are wonky... sometimes when I put the left on the right one flashes and vice versa - freaky lol! Sometimes when I touch the signal lever the wipers will go on!! I'm starting to think this vehicle is possessed!! lol
Any help would be appreciated!

 

A/C - If the compressor clutch is not engaging it could be electrical but most likely it's low on refrigerant. Jump contacts 30 and 87 at the clutch relay socket for a second. If the clutch engages you're likely low of refrigerant. Have it serviced by the pros.

Defrost - Check 40 amp fuse 13. Good? Jump contacts 30 and 87 at the defog relay socket. If the rear window heats up swap the relay with another on the panel. Still no heat? You could have a bad switch, FCM or wiring between. Many times a segment in the window cracks and opens the circuit. Inspect closely.

Turn sigs - Based on your touchy wipers you likely have a bad multifunction switch (signal lever). Other than that it could be a bad Body Control Module (BCM), Front Control Module (FCM), poor connection or wiring between