About a week ago my "Check Charging System" warning showed up, along with battery light, on my 06 GT Vert. It came on about one minute after starting and pulling out into the street, (20 mph street). It stayed on about 3 0r 4 minutes, speeds to 45 mph. The amp guage showed where it always does, slightly + side on center. It went off and didn't return that day. I had battery and alternator checked by my brother in law, who is a pretty good mechanic, boats and cars. The readings were 14.7...

"Check Charging System" problem