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2002 Lexus IS300-T
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412 Posts
Today I witnessed the beginning of my 2001 IS300 start flashing it's blinker lights after I shut off the car. At first it was just hesitating and a slight flash, but now a short time later it's full blown flashing as if I have the hazard lights on. The only thing that makes it stop flashing is to start the car, otherwise it would just sit there and flash until the battery dies. I pulled my negative battery terminal for the time being while I came in to research this issue online, but it appears to be a failed turn signal relay. I'll update this thread if that fixes the problem so that others can search for this in the future.
 

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Registered
2002 Lexus IS300-T
Joined
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412 Posts
The interesting update is that now the car won't reproduce the same behavior after letting it sit with the negative battery terminal disconnected for a few days. I'm trying to get it to reproduce it now before replacing the actual relay, and will keep you all posted. It is raining currently too, so if it's really caused by a water leak I do hope to see that brought up soon too.
 
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