Headlights

Tiny
CECILIA BOOMER
  • MEMBER
  • 2001 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
Will not work on high beam.
Sunday, June 25th, 2017 AT 2:26 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Hello,

It sounds like you have a headlight relay or a dimer switch that is not working. Here is a head light wiring diagram and a guide to help you test the system and get the problem fixed.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please run some tests and get back to us so we can continue helping you.

Cheers, Ken
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Monday, July 27th, 2020 AT 5:34 PM

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