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12-03-2008, 08:44 AM
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#1 | |
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AF Newbie
Join Date: Dec 2008
Location: Cadill, Michigan
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2004 Trailblazer low beam headlights out
I have a 2004 Trailblazer that both low beam headlights went out at the same time last night. Pulled in a parking lot, headlights and parking lights blinked, then the low beams went out all togehter. High beams, parking, tail and all other lights work fine. Don't see any blown fuses under hood or inside. Low beam bulbs look good, no burn spots, elements are all there and connected.
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12-03-2008, 09:02 AM
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#2 | |
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A990 racer
 Join Date: Mar 2002
Location: Chestertown, New York
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Re: 2004 Trailblazer low beam headlights out
Welcome to AF. I believe there is a relay in the circuit' check the under hood panel for one. Check this link. http://www.autozone.com/shopping/rep...00c152800a0a7e
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12-03-2008, 09:59 AM
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#3 | |
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AF Enthusiast
Join Date: Jul 2005
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Re: 2004 Trailblazer low beam headlights out
Since both low beams are inop- In your underhood fuse/relay center- check HDM relay #46 - and the fuse next to it - HDM fuse #53- you can usually just swap the relay with another that looks like it to test....let us know what you find...
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Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles- |
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12-03-2008, 05:25 PM
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#4 | |
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AF Newbie
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Re: 2004 Trailblazer low beam headlights out
Checked all the fuses, 125A at the front of the panel is good, all lighting fuses are good, swapped out relays with a known good one, and still nothing. I put it up on the hoist to see if any wiring may have been pulled loose from snow and ice, nothing jumped out.
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12-03-2008, 07:15 PM
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#5 | |
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A990 racer
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Re: 2004 Trailblazer low beam headlights out
Do you have 12v to the lamp sockets?
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12-05-2008, 07:44 AM
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#6 | |
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Re: 2004 Trailblazer low beam headlights out
Feeling dumb. Had 12v, bulbs still don't look bad, but replaced them and I have lights now. Thanks for the help.
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