Question about 2005 Chevrolet Trailblazer Ext

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2005 trailblazer headlights go off ocasionally

It does click at the fuse when trying to switch drl, high beams work fine but no low beams

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  • gfreecobraje May 13, 2009

    actually the taillights dont go on either when its in drl but work when its not. the headlights dont work in either situation

  • annettemcnea May 22, 2009

    2006 chevrolet trailblazer NO LOW BEAM LIGHTS???

  • billie ramos
    billie ramos May 11, 2010

    have you checked the relay?

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  • Chevrolet Master
  • 1,348 Answers

The click you are talking about is the high beam relay.
you nedd to get a tester or voltmeter and check the sockets for 12v.
there has been instances where both low beam bulbs went at once.
do the daytime running lights work?
if not,supect the daytime module...it is also wired into the parking brake.
if you put the park brake on first,then start the vehicle,the dtr do not come on

Posted on May 13, 2009

  • kirtec auto May 13, 2009

    if the rear lights are on,then the dtr module is working on one half of it.the daytime module has internal relays.the ones that go to the headlights are maybe no good.

    alot of vehicles use the hb bulbs at 60% for the dtr.

    i suspect the dtr module if your bulbs,fuses are ok

  • Anthony Zullo
    Anthony Zullo Apr 06, 2014

    THE DIGITAL RELAY IS BAD IN THE FUSE BLOCK NEXT TO THE FAN RELAY IT IS NOT LISTED AS HEADLIGHT RELAY

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