Lexus GS300 no heat or ac
i have a 1998 lexus gs300 heat/ac worked before when i first got it but after i
had the head unit for the radio rewired and i put the head unit and the climate
control unit in the dash properly since it was not installed right when i bought
the car used
If the head unit was installed improperly when you bought the car, I'm guessing the previous owner had the same problem. As both heat & AC are affected, it's probably a defective climate control unit. Remove it and have it checked. Otherwise, it might be just a bad fuse, or a wiring problem.
But it worked when I got the car and stopped working when I fixed the radio