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??