head lights

vegasbilly702
0

Asked by vegasbilly702 Mar 12, 2013 at 08:08 PM about the 2006 GMC Sierra 1500

Question type: Maintenance & Repair

where is the head light fuse i changed the bulbs and cant finfd the fuse

6 Answers

DavidH25
Not Active

Headlights don't have a fuse. they have a breaker, so they will not fail on you entirely. When the breaker cools, they will come back on and the breaker on most cars is under the hood

2 out of 2 people think this is helpful.
tenspeed
67,285

I didn't find anything specifically for the 2006 GMC but every GMC truck fuse box I see has fuses for the headlights. Usually four fuses - low and high for both sides. --- I think it would be a low probability that all fuses are blown. The truck may have a body control module (BCM) that controls the headlights.

DavidH25
Not Active

OK, that's fine, but they are breakers: from wiki: All Vehicle headlights are protected with circuit breakers instead of fuses because, when light bulbs fail, there is an ionizing arc internally that causes high current. You see that at home - when a light bulb fails you see an instant of very bright light. This pulse of high current can blow a fuse. It also can trip a circuit breaker, but the circuit breaker is designed to reclose while, once a fuse is blown, it stays blown. Headlights are a critical safety device. It is better to attempt automatic reclosure following a fault, than it is to leave the headlights off, in case the fault was temporary.

DavidH25
Not Active

OK, I really did a lot more looking and it seems we are both right: From: ChevyTruckPages.net: Circuit breakers Headlamp and parking lamp circuit In addition to a fuse, the Headlamp circuits are protected by the Circuit Breaker in the light switch. An electrical overload on the breaker will cause the lights to go on and off, or in some cases to remain off.

DavidH25
Not Active

Also..geez TS it gets better...Chevy seems to have this also: The following wiring harnesses are protected by a "fusible link" which is a special wire incorporated in the circuits: Headlamp high beam indicator Horn Air conditioning high blower Ignition circuits Starter Solenoid (pull in and hold) circuit Should an electrical overload occur, this wire will fail (burn) and prevent major damage to the harness.

tenspeed
67,285

GM does some strange things. My '02 Pontiac has fuses and the BCM controls the headlights. The center leg is always hot (12 Volts) and the ground side varies from 12 volts when off to 6 volts for DRL's to zero volts for headlights on. -- It's a real head scratcher if you don't know about it because with the lights off, all three wires show 12 volts to ground.

Your Answer

Add photo

Related Questions

  • tail lights dont work 12 answers

    The brake lights, turn signals, reverse lights all work but the tail lights ( when you head lights are on ) do not work. i have changed the bulbs, fuses, checked the tail light circut board, checked...

    1991 GMC Sierra 1500 K1500 4WD Standard Cab Stepside SB

    -

    Maintenance & Repair

  • Why does my battery lose power when I turn my lights or heater on ?? 4 answers

    1994 GMC Sierra 1500 C1500 SLE Extended Cab LB

    -

    Maintenance & Repair

  • i checked the breakers 2 answers

    ok thank you for the answers ive checked all breakers they are working the head lights come on on high beam but not on low beam i checked all for breakers aka fuses and still not working on 2006 gmc...

    2006 GMC Sierra 1500

    -

    Maintenance & Repair

  • i have a 95 gmc sierra 1500, 350 5.7liter, with oil in my radiator 4 answers

    I have a light brown oily substance in my radiator but there's nothing in my oil or transmission, and the vehicle runs hot

    1995 GMC Sierra 1500 C1500 SL Extended Cab SB

    -

    Maintenance & Repair

  • head lights 1 answer

    the head light on my 1989 gmc are terrible they don't light the road hardly at all are there better bulbs I can replace them with

    1989 GMC Sierra 1500 C1500 Standard Cab LB

    -

    General

Sierra 1500
Looking for a Used Sierra 1500 in your area?
CarGurus has 58,192 nationwide Sierra 1500 listings starting at $1,995.
ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 2,750
#2 John Saffrahn
John Saffrahn
Reputation 1,940
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 1,480
View All

Related Models For Sale

Used Chevrolet Silverado 1500"
1,588 Great Deals out of 138,412 listings starting at $1,500
Used Ford F-150"
2,076 Great Deals out of 109,817 listings starting at $1,350
Used Dodge Ram Pickup 1500"
560 Great Deals out of 10,890 listings starting at $1,984
Used GMC Sierra 2500HD"
188 Great Deals out of 12,385 listings starting at $3,995
Used Toyota Tundra"
376 Great Deals out of 17,420 listings starting at $2,299
Used Toyota Tacoma"
557 Great Deals out of 25,017 listings starting at $2,598
Used Chevrolet Silverado 2500HD"
411 Great Deals out of 30,182 listings starting at $2,725
Used Chevrolet Tahoe"
493 Great Deals out of 25,308 listings starting at $1,955
Used GMC Yukon"
192 Great Deals out of 8,205 listings starting at $2,350
Used Jeep Wrangler"
483 Great Deals out of 43,070 listings starting at $1,800
Used Ford F-250 Super Duty"
568 Great Deals out of 38,611 listings starting at $2,500
Used GMC Yukon Denali"
96 Great Deals out of 7,694 listings starting at $9,490
Used Chevrolet Colorado"
168 Great Deals out of 8,775 listings starting at $2,995

Used Cars For Sale

2015 GMC Sierra 1500 For Sale
37 Great Deals out of 41,723 listings starting at $23,800
2014 GMC Sierra 1500 For Sale
77 Great Deals out of 3,502 listings starting at $20,431
2013 GMC Sierra 1500 For Sale
99 Great Deals out of 2,609 listings starting at $16,797
2012 GMC Sierra 1500 For Sale
84 Great Deals out of 2,045 listings starting at $10,950
2011 GMC Sierra 1500 For Sale
84 Great Deals out of 1,878 listings starting at $10,490