Stupid Question, but have you checked to see if the electric fan (if equipped) turns on when you turn the A/C on? I'm not too sure how Lexus operates, but usually there are electric fans that help keep the car cool once the A/C turns on or when the Car reaches a certain temp. If you notice it doesn't come on, check for fuses if they are fine then try jumping the fan to a constant power source (battery) and if it turns on then there is a bad thermo sensor. Hope this helps.
Sunday, August 20th, 2006 AT 9:15 AM