Question about 2006 GMC Sierra

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Low beam not working on 2006 GMC Sierra

I checked the relays, fuses, and bulbs and all were ok

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  • yadayada
    yadayada May 11, 2010

    is there 12 volts present at the wire for the low beam at the head light bulb connector?

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More than likely the switch in your signal arm is broken. You can tell mostly by whether your high beam indicator light is on. If that is not the problem, you may have a short in your headlights wiring system.

Posted on Dec 24, 2008

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2005 gmc sierra rt side low beam and fog lights not working


use dc voltage meter and see if you have power in the sockets and if the fuse is good and relay , also check to make sure you haven't lost the ground.

Feb 08, 2013 | 1998 GMC Sierra

1 Answer

Low beams dont turn on........... bulbs check ok...................fuses under hood ok.............need help


{: ) I wonder how you checked the fuses and the bulbs. Did you check also the HDM fuse 15amp and the HDM relay both at the underhood fuseblock? Turn on the low beam and check for 12v at the LO beam fuses. If there is voltage at the fuses but the low beam ok bulbs won't light, then there's a wiring issue from your fuseblock going to the bulbs.
But if no voltages on the LO fuses when the low beam is switched on, then the problem could be on the HDM fuse or relay, the headlamp switch, the BCM, or even the fuseblock.

Jul 02, 2011 | 2006 GMC Envoy

1 Answer

Headlights went out. Replaced bulbs and switch and still lights don't work. Fog lights and high beams work? What else can work?


If high beams work and low beams do not, then it is probably the high/low relay. It is part number 15016745 and has four prongs. To test if your relay has gone bad locate the relay in your fuse box. There will be two of these relays located next to each other. One controls the low beam headlights and the other the cooling fan. Swap the relays and check your low beam headlights. If the low beams work you have a bad relay.

Sep 20, 2010 | 2006 GMC Envoy

1 Answer

No low beams bulbs are ok fuses look good


There may be a relay that operates the low beam lights, check the owners manual to see if there is a relay, you should be able to hear it go "click" if there is one.

Dec 26, 2009 | 2006 Hyundai Sonata

2 Answers

Why dont my low beams work on my gmc sierra?


i had same p w 1996 gmc chgd bulb chgd switch checked wires in steering coloumfinmally went under dash where your left boot would be and wiggled a 3quarter by half inch relay and done it lite up all day of jackin 2sec fix

Nov 10, 2009 | 2000 GMC New Sierra 1500

1 Answer

Low Beam headlights don't work. High Beam work fine and diriving lights work as well.


hi from uk provided you have checked bulbs are ok? then this fault may be the relay for the low /dipped beam has gone faulty if you check h/book you may find location of low beam relay there is relay for high and one for low beams if you find both relays ? try switching? this will confirm relay fault if you then have low beam but no high ? b4 you buy new relay other than tis the other possible fault may be the actual di/high beam stick control ?

Nov 09, 2009 | 1998 GMC Sierra

1 Answer

No low beam lights


Did you check your fuses by any chance? otherwise check all your connection from the headlights back. Check your relays also.

Mar 26, 2009 | 1992 GMC Sierra

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