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If you mean all the warning lights come on at once this usually indacates the alternator is bad. It is either under or over charging (usually under) is a typical Toyota sign of an alternator going out.
Probably the alternator. Have it checked if it is charging.
It was my alternator, needed rebuild.
I had this problem on my disco 1. Turned out to be the alternator, which was replaced and the problem was fixed.
Most likely problem is the alternator. Even if youv've replaced it with a rebulit most rebuilders put in the wrong voltage regultaor in the alt so all your warning lites come on
FYI - I had a bad alternator. Apparently, a failed alternator may/can/will cause the battery AND brake warning lamps to come on. Alternator has been replaced, and all warning lamps cleared.
I obviously means that there is something wrong with the alternator or battery. When both lights are on 80 percent of the time its the alternator. Either your belt fell off or your alternator went bad.
Check your battery connections. Also take your car to an auto parts store and have your alternator checked.
Yes yes yes. Replace it.
it is caused by low power or ampage output from the alternator.
I had this same problem with my !995 Galant. It turned out to be the alternator.
Happened to me when I had a faulty alternator. Eventually just died in the middle of the road.