jadsc300 Posted May 26, 2005 Posted May 26, 2005 SKPerformance - you seem to be very knowledgable about this stuff (I seem to know nothing!) Here's one for you: I have a 1999 SC300, 82,000 miles, black w/ black (and beautiful) the only problem it has is that a green indicator light starts flashing on the A/C button. This only occurs when the A/C is turned OFF and after about 10 or 15 minutes. When it starts to flash - I press the "off" button and it stops but then starts again after another 15 minutes or so. The A/C runs fine and doesnt flash when its on - only when its off. I ran the self diagn. test and it gave me the "00" meaning normal. I've done some research but im clueless. Any suggestions before i get a big bill from the dealership?? PLEASE!!! Is it possible that it is an old code (like 21 for being in the dark running the test before) and its just in memory??
jbarhorst2 Posted May 26, 2005 Posted May 26, 2005 Interesting.... Normally a flashing A/C light means that the compressor is seized. Tom
SKperformance Posted May 27, 2005 Posted May 27, 2005 Agreed ,a flashing light means comrpessor lock up. I am stumped.
SKperformance Posted May 27, 2005 Posted May 27, 2005 I just thought it might be your expansion valve being clogged as it is after it has started to cool and the pressure may not be equalizing on the high and low sides
jadsc300 Posted May 27, 2005 Author Posted May 27, 2005 THANX - I WILL LOOK INTO THE EXPANSION VALVE (EVEN THO I DON'T KNOW EXACTLY WHAT IT IS) IT SOUNDS ALOT LESS EXPENSIVE THEN A COMPRESSOR LOCK UP!!! THANKS AGAIN!!! I'L KEEP U POSTED
gcarpent Posted May 30, 2005 Posted May 30, 2005 This can happen for many ressons according the the shop manual. If one of the temperature sensor is called upon and doesn't respond the light will flash. The compressor is working fine or else you would not have cooling. They are four sensors that control the system, one by the front bumper outside, one within the evaporator housing, one on the dash normally by the radio, and the solar sensor. The self tesh will not alway notify of a bad sensor.
jadsc300 Posted June 1, 2005 Author Posted June 1, 2005 Thanx gcarpent! Do you know of any easy ways for someone to check the sensors?? Or is it something I'd have to take somewhere to be tested. (I'm a car idiot)
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