02 Sierra DRL and low beams will not work but have power to both low beam sockets

Asked by Jun 20, 2016 at 09:25 AM about the 2002 GMC Sierra 1500 SL Standard Cab LB

Question type: Maintenance & Repair

On start up my park lights come on but not my DRL.Have power to the
sockets for low beams when the switch is on and high beams work fine.New
bulbs in low beams.

2 Answers


Begin by double checking all FUSE(S) and the Relay... basic system has an ambient light sensor located on the dash to the right of the center defrost vent that sends info to the BCM which controls the DRL relay. There is also a sun load sensor which is to the left of the center defrost vent. On the '02 there is a second fuse related to the DRL relay which is labeled IGNE (10 amp) which is the DRL relay power. The DRL fuse is power for DRL lamps. Regards

1 people found this helpful.
Best Answer Mark helpful

I'm having similar trouble,no low beams,(checked all fuses etc etc) so I thought it was odd but maybe the bulb burnt at the same time.Went to drivers side to screw bulb out to check,soon as the bulb was unscrewed the light came on,so i figured it was bulbs and by fiddling with it caused it to light up,I then screwed it back into the housing it stayed lit up,then I went to the passenger side started unscrewing it and it came on soon as it was unscrewed from the housing,same as the other side!screwed it back in then everything was working again.Used the truck a couple days it then sat for a couple,went to use it and the same thing was happening again,no DRL'S and no Low Beams.Mystified by this problem

Your Answer:

GMC Sierra 1500 Experts

  • #1
  • #2
    John Saffrahn
  • #3
    Glenn Clingenpeel
View All

Related Models For Sale

Used Chevrolet Silverado 1500
1,726 Great Deals out of 154,936 listings starting at $1,700
Used Ford F-150
2,281 Great Deals out of 188,281 listings starting at $1,300
Used GMC Sierra 2500HD
149 Great Deals out of 17,808 listings starting at $3,200
Used Toyota Tundra
461 Great Deals out of 37,862 listings starting at $1,750
Used Dodge Ram 1500
335 Great Deals out of 9,325 listings starting at $1,500
Used Chevrolet Silverado 2500HD
337 Great Deals out of 29,195 listings starting at $2,795
Used Toyota Tacoma
421 Great Deals out of 49,181 listings starting at $2,400
Used GMC Yukon
326 Great Deals out of 21,887 listings starting at $2,950
Used Chevrolet Tahoe
629 Great Deals out of 38,014 listings starting at $1,199
Used Ford F-250 Super Duty
476 Great Deals out of 37,892 listings starting at $1,999
Used Chevrolet Camaro
233 Great Deals out of 26,932 listings starting at $4,000

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
63 Great Deals out of 34,492 listings starting at $20,490
2017 GMC Sierra 1500 For Sale
123 Great Deals out of 5,482 listings starting at $18,488
2016 GMC Sierra 1500 For Sale
51 Great Deals out of 2,759 listings starting at $17,749
2015 GMC Sierra 1500 For Sale
70 Great Deals out of 4,618 listings starting at $11,995
2014 GMC Sierra 1500 For Sale
56 Great Deals out of 2,773 listings starting at $10,900

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.