high beam lights out on both sides?

1994 CHEVROLET SILVERADO
166,000 MILES • 5.0L • V8 • 4WD • AUTOMATIC
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CODY BENOIT
  • MEMBER
  • 2 POSTS
The vehicle high beam lights out on both sides of the truck. I'm trying to see what is recommended to fix this.
Sep 2, 2022 at 2:35 AM
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STRAILER
  • Experienced Mechanic
  • 55,267 POSTS
This is caused by the dimmer switch being out, here is the headlight high beam wiring diagrams so you can see how the system works and I have included how to change the dimmer switch out in the images below. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.



Sep 2, 2022 at 4:48 AM
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CODY BENOIT
  • MEMBER
  • 2 POSTS
Hey, I found this under the steering column, is this important?
Sep 9, 2022 at 1:48 AM
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STRAILER
  • Experienced Mechanic
  • 55,267 POSTS
Yep, was there an aftermarket alarm on this truck? I see open wiring? to look to where this can connect back up. Also, can I get a better shoot of the wiring from the connector?
Sep 10, 2022 at 7:11 AM
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