Stumped...car randomly completely won't start, no crank, nothing, and the charging system failure light comes on. The car has a battery that is 1 month old. I have a battery tester which shows the battery as good and the alternator as good, I also put a volt meter on the battery and it shows the battery at 14.5 volts while running. What is the most common issue that is causing the no start....please help.