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Have '02 Impala, 6c, auto. Periodically, when using turn signal, there is a buzzing noise, the airbag light blinks and the door locks will open and close Ignition switch? Today, I can't start it. Electrics work (radio, lights, gauges) Battery OK, as is gen and start. ??????
Same probs, flashing lights, outside & inside. the clicking noise was from the Battery Run down Protection Relay, when I took it out it was hotter than hell. still did the flashing and stuff butt the click was gone. If you pull the 10 fuse next to the Starter Relay on the driver's side, wait 2 or 3 minutes and push it back in, it seem to reset itself and the car would work for a few days. Thought it was the Starter Relay but wasn't. You can use the Rear Defog Relay from the passenger side and swap it with the Starter relay to test because they are the same relay. So now I am getting a Battery Run Down Protection Relay and hope it's that and not the BCM, which will be next if this don't work. Hope this helps someone! =D
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