DRL wiring diagram needed

Tiny
CUTLASS971
  • MEMBER
  • 2021 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 382 MILES
Color codes for light socket, DRL wiring diagram needed?
Saturday, April 24th, 2021 AT 5:11 PM

2 Replies

Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Hello. the BCM control the DRL lights, if hey are not working I would check all BCM fuses and fi they are okay run a CAN scan to see if the BCM is working here is a aguide it is easy to do, Also I found the wiring diagrams which I have uploaded in the images below. you can get a CAN scanner from Amazon for about $30.00 here is a video to show you how.

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

here is a scanner link

https://amzn.to/3o41KcZ

Check out the diagrams (Below). Please let us know what happens.
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Saturday, April 24th, 2021 AT 5:18 PM
Tiny
HARRY P
  • MECHANIC
  • 2,292 POSTS
Sorry I just reread what you said. DRLs. Wiring diagrams for model year 2021 Silverado 1500 aren't yet available. Here are some from the 2020 year, which are likely similar or nearly the same. Hopefully when you enlarge them the quality will still be good enough. If not, let me know and I'll figure out another way to get them for you. These are hard to read but the diagrams in the above post are much better
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Saturday, April 24th, 2021 AT 5:28 PM

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