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System "dings" as soon as key is off. With doors closed. Why is this?

Tiny
W.D.OSBORN
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
  • 14,000 MILES
All doors are closed, all lights appear to be off, the security system doesn't "beep" the horn when activated. The dome lights shut-off quickly/abruptly when security is set. They used to dim, then shut-off. I suspect a switch is set wrong.I just can't find it. Suggestions?
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Tuesday, June 19th, 2012 AT 10:05 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
I think you have an issue with the bcm. You need someone with a scanner that can read the bcm codes and view the data stream.

This is beyond doing at home unless you have a scan tool.

Roy
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Tuesday, June 19th, 2012 AT 10:45 PM

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