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What causes signal lights to flash fast on dash and not flash outside on a 2001 Impala?
Wiki User
∙ 15y ago
one of two things, either the flasher or the signal relay EDIT: Um, NO. You have a bulb out. It can't flash outside, it's dead. Inside, electricity is still flowing, so the interior bulbs work twice as hard to keep up with the current. Check all your light bulbs and/or sockets.
Wiki User
∙ 15y ago
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