2014 prius c climate control issues

For the past week now i have been having a issue, It started off as my Radiator fan was on and off now and then in cool weather(so car was not overheating) and when it was on my climate controls were not working and no display, then the radiator fan would stay on all the time from the time i started the car to when i shut it off, then the past day its been on and off each time it shuts off my climate controls work, What can be the problem, Coolant temp sensor ? Relay? No one at toyota seems to want to help with info(they just want the car to come in... $) im sure they have had people with the same issue. Any help would be much appreciated