1993 Toyota Camry Charging System Problem

I was driving around town and I took a rough left turn and my windows, sunroof, electric door locks, gauges, heat/air conditioning went out. So I blew it off thinking it was just a fuse or relay. But later when I manually checked every fuse/relay all of them where ok. The next day the car started so I left it idling do about 20-25 minutes went inside and came back to the car battery is dead with key in the ignition turned to the start position. I jumped the battery with jumper cables and it ran for 10 minutes it died again. So I assume at this point its either the alternator or battery so I get them tested and the both tested good. I checked the battery cables with a voltometer and there is no power coming from the alternator to the battery. I looked for a short in the wiring and couldn't find any. So my question, is there anything else that could be causing the alternator to not be charging the battery?

Also I have another ECU. Do you think if I changed that out it would help?