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Fog and DRL lights not working

Tiny
JONNYG730
  • MEMBER
  • 2007 HUMMER H2
  • 6.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 118,700 MILES
I checked all the fuses and relays and replaced bulbs but they don't work. Have power when I jumped it but not direct fuses. Where under the hood what else can I check?
Monday, February 22nd, 2021 AT 10:18 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,883 POSTS
It sounds like the BCM is out which controls both of these systems. To be sure lets do a CAN scan which is the future of automotive repair. you can get a CAN scanner from Amazon for about $50.00. here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is the BCM replacement instructions. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Tuesday, February 23rd, 2021 AT 6:37 PM

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