My ac works find during the day, However, at night when i turn my headlights on the ac blows warm air. Now if i turn them off it blows back cold air, that’s strange, Can anyone tell me what is wrong?
What is your question?
Problems to happen during the evening, i suspect when the lights come on automatically or turned on. if i turn them off its back cold and then turn lights back on it stays cold. Sounds electrical.
What makes this problem better or worse?
When lights are turned on
How long has your 2013 Mitsubishi Lancer had this problem?
RepairPal Certified shops can diagnose and repair your 2013 Mitsubishi Lancer. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
I glanced briefly at the wiring diagrams for the air conditioning system of this vehicle, but cannot find an easy correlation to vehicle lighting and compressor control.
It would seem reasonable to think that there is something that is affecting air conditioning control when the backlight of the controls comes on, when the switch comes on. It would be a good first look to check the wiring harness and connector at the back of the ventilation controls to see if there is some kind of pinched wire or short present.
Other than that, it's going to take checking to see if the compressor stops running or maybe the temperature control changes. If the compressor stops running, you'll need to check backwards from the compressor in the electrical circuit of the system to see where power stops being present.
