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Headlight wiring diagrams?

Tiny
DBF
  • MEMBER
  • 2000 BUICK CENTURY
No low beams I changed the bulbs and light switch on dash
Saturday, February 28th, 2009 AT 5:01 PM

3 Replies

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS


https://www.2carpros.com/forum/automotive_pictures/55316_00centuryhead_1.jpg



https://www.2carpros.com/forum/automotive_pictures/55316_00centuryhead2_1.jpg




https://www.2carpros.com/forum/automotive_pictures/55316_00centuryfusehood_1.jpg



Fuse #32, 34, and 36 under the hood

Headlamp relay is behind the glove box

Headlamp dimmer switch
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Saturday, February 28th, 2009 AT 8:37 PM
Tiny
JOHN PRESTON
  • MEMBER
  • 1 POST
  • 1999 BUICK CENTURY
  • 3.1L
  • V6
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
You turn on the high beams and they only stay on for five minutes then shut completely off. The lights go out completely.
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Friday, May 21st, 2021 AT 3:38 PM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,884 POSTS
It sounds like the headlight switch is going out, but to be sure here is a guide to show you how to check for power coming out of the switch to confirm the failure:

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

Check out the diagrams (below). Please run some tests and get back to us.

Cheers, Ken
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Friday, May 21st, 2021 AT 3:38 PM (Merged)

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