Headlight Ground? Headlamp relay begins to buzz?

Tiny
VAPID28
  • MEMBER
  • 1998 CHEVROLET S-10
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 179,600 MILES
When I turn my truck off the headlamp relay begins to buzz and I’ve cleaned all grounds for headlight and switch relays and continues with this issue.
Monday, March 13th, 2023 AT 6:28 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
It could be an internally shorted headlamp bulb. Here are the headlight wiring diagrams so you can see how the system works and a guide on how to check the system.

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

Check out the images (below). Please let us know what happens.

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Tuesday, March 14th, 2023 AT 12:21 PM

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