Drivers low beam headlight not working

2010 CHEVROLET SILVERADO
150,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC
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TOMCHEVY
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  • 1 POST
Low beam does not work neither does daytime running light. The high beams are both fine. All fuses are okay, but I have no power in the lite socket with bulb removed. Is there a body control module or something else that could be wrong? Where can I find it and how can I test or replace it? Any wiring diagram or solutions would be appreciated. Thanks, I am new to this site and hoping for some insight.
Nov 9, 2018 at 9:14 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,694 POSTS
Hello,

It sounds like the BCM (body control module) is out or fuse #12 under the hood is blown. Here is a guide to help you test for power at the fuse along with the fuse panel information and locations:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuse is good then both headlight should work check out the headlight wiring diagrams to see how the system works and the BCM location.

Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

Cheers, Ken
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Jul 27, 2020 at 10:29 AM
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