Fog light upgrade light's

Tiny
ROYCAR71
  • MEMBER
  • 2011 CHEVROLET AVALANCHE
  • 5.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 158,621 MILES
I'm upgrading to 5202 LED Fog Light Kit ironwall. The old halogen lights work, but when I replace with led lights they don't turn on. Do I need to upgrade relay in circuit?
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Saturday, February 20th, 2021 AT 1:31 AM

3 Replies

Tiny
KEN
  • ADMIN
Nope, they should work. you can check for power and ground using this guide with the fog light wiring diagrams below to show you how the system works:

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Please let us know what happens.
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Sunday, February 21st, 2021 AT 9:54 AM
Tiny
ROYCAR71
  • MEMBER
Quick note. The wiring and fog lights are after market I installed. It came with 30 amp relay and 15 amp fuse. This setup works fine with regular halogen bulbs. But new led lights with fan in back they won't. Is that a sign that it's not getting enough power?
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Monday, February 22nd, 2021 AT 3:34 AM
Tiny
KEN
  • ADMIN
It could be. let's check using a voltmeter. this guide can help us figure out what's going on:

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Please run down this guide and report back.
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Thursday, February 25th, 2021 AT 8:02 AM

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