im new to this site and i have a 05 350z with 90,000 miles on it. When i drive it the heater will turn on full blast or the ac will come by itself even when everything is off. Sometimes it will even switch back and fourth. Some times i put the **** on high and it doesnt blow at all. If anyone has any ideas how to fix this? Could it be my climite control box maybe bad or lose wires? any ideas would be great thanks

 

I know that when you disconnect the wires behind the climate control box, the heater turns on full blast, so it might be a loose/dusty connection in the connector behind the climate controls. I would check that out first if I were you

 

thanks for the help, i took it all apart and cleaned every thing and made sure i didnt have any broken wires. i put it all back together and adjusted the pins on the ribbon cable and seems to be working good now. :-)