Dear Doctor: I have a well-maintained 2000 Toyota Camry LE 2.2 with 128,000 miles. The car runs well, but occasionally flashes an ABS and the radio light flickers with it, too. I also noticed one night that the headlight flickers with it as well. I’ve asked around and some people tell me it’s the alternator or battery. What do you advise? Ed
Dear Ed: The flickering indicates charging voltage variation. A test of the charging system needs to be performed. The problem might be the alternator. Before replacing it, an additional test of the battery and all ground connections should be done. If you do end up replacing the alternator, then I prefer the Bosch brand for its quality and 2-year warranty.