Autel MaxiScan MS300 Performs "as advertised"

I ordered this unit for the specific purpose of reading and clearing trouble codes in my 2002 Toyota Sienna minivan. It performs these functions as expected. I've used it twice now to help me understand when it might be time to go to the mechanic. Both times, the trouble code was the same, so now I can take the vehicle into the shop with confidence that something does need to be fixed.