Alternator won't charge brake, parking brake and battery light went on same time?

1991 Audi 90. Daughter was driving last night and battery light went on, brake warning light and parking light went on at the same time. The alternator quit
charging and drained battery. This morning I charged up battery and drove car home ( 30 miles). Car drove and handled fine. Changed out alternator with rebuilt tested alternator. No luck. Still not charging and same three warning lights are on. Is this some weird Audi joke going on to test my electrical knowledge. Help. She needs to use the car Monday. Thanks, Rod Michaelson Walnut Creek, CA
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There should be a little "energizer" or exciter wire that could break and then no charging, but usually the light would not light up........hmmmm Still check for broken wires and see if you have power from the wires. For the little wire to have power (less than 12volts) you need to turn the ign to the on position. Any broken ground wires or main wires going to the battery?
I cleaned up the mounting points (also grounding points) for my alternator and I got a full extra volt coming from my alternator.
later, dave Reminder........ Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you are a mile away from them, and you have their shoes. Frieda Norris
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