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2002 Chevrolet Trailblazer gauges and radio not working

Tiny
HIGGY73
  • MEMBER
  • 2002 CHEVROLET TRAILBLAZER
I replaced the radio in my 2002 trailblazer (bought the correct adpater because I have onstar). Radio was working fine! But I hooked up an amp and now my radio wont turn on and the guages dont work. Many sensors are being thrown up like air bag and seat belts.
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Monday, October 21st, 2013 AT 12:05 AM

1 Reply

Tiny
DENNYP
  • MECHANIC
  • 1,823 POSTS
Disconnect the aftermarket parts that were just installed. Disconnect the battery and touch the cable ends together to discharge any capacitors. Re-connect the battery and see if you still have gauges and such working or not. If everything is working, there is a problem with the equipment you installed, or you wired something into a communications line on the vehicle. If something got wired up incorrectly, you could have caused damage to other components.(Not always the case, but it is possible)
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Wednesday, October 23rd, 2013 AT 11:30 AM

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