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Headlight wiring diagrams

Tiny
ANDREW WEST
  • MEMBER
  • 2004 FORD CROWN VICTORIA
  • 4.6L
  • V8
  • 2WD
  • AUTOMATIC
  • 190,000 MILES
I bought a headlight for my car, but it doesn't work. Thanks
Monday, February 20th, 2017 AT 10:18 AM

4 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 42,949 POSTS
Hey Guys,

I have this wiring diagram and I don't see a headlight relay just a lighting module like Steve W. said run some tests using a test light to find where you are loosing power.

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

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

Best, Ken

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Tuesday, May 7th, 2019 AT 11:01 AM
Tiny
HIL0143COMCASTNET
  • MEMBER
  • 1 POST
  • 2003 FORD CROWN VICTORIA
  • 83,000 MILES
Does it have one? Headlights not working headlight wiring diagram.
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Wednesday, May 19th, 2021 AT 6:50 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
There is no headlight relay. Here is a headlight wiring diagram to show you how the system works and a guide to help you check the wiring:

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

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

Cheers
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Wednesday, May 19th, 2021 AT 6:50 PM (Merged)
Tiny
JCLINT
  • MEMBER
  • 0 POST
I had this problem it was the main headlight switch. Thanks for the guide. I love this site.
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Wednesday, May 19th, 2021 AT 6:50 PM (Merged)

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