2002 Chevy Trailblazer LS alarm not working

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I am trying to figure out why the alarm wont work because usually when you unlock the door from the inside after locking it the alarm goes off but that doesn’t seem to be happening. I also am trying to figure out how to make the horn chirp and the lights flash when locking it

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Nave18 4 months 2 Answers 740 views Member 0

Answers ( 2 )

  1. The alarm “ecu” probably thinks one door is open, what if you set the roof lights to light up when you open a door, is the roof lights ON all the time then? 🙂

    See 2-16 for some more information 🙂

    https://my.chevrolet.com/content/dam/gmownercenter/gmna/dynamic/manuals/2002/chevrolet/trailblazer/2002_chevrolet_trailblazer_owners.pdf

  2. No the roof lights do not stay on when I lock the car

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