alternator workshop light on volkswagen jetta
I keep having "Alternator Workshop" appear on my dash just before all the
power goes out. Alternator checks out fine, battery checks out fine, fuses
and fuse box are brand new. This warning has been appearing for 3
months sporadically and never for the mechanics; initially it was just the
Workshop warning, then added "STOP" and "Brake Fault". The power
going out is more recent. It has been into the shop numerous times. Any
ideas of what might be causing this?