headlight wiring diagrams

2004 FORD CROWN VICTORIA
190,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
Avatar
ANDREW WEST
  • MEMBER
  • 1 POST
I bought a headlight for my car, but it doesn't work. Thanks
Feb 20, 2017 at 10:18 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 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


Images (Click to enlarge)
Attached Media
Attached Media
May 7, 2019 at 11:01 AM
Advertisement
Avatar
HIL0143COMCASTNET
  • MEMBER
  • 1 POST
Does it have one? Headlights not working headlight wiring diagram.
May 19, 2021 at 6:50 PM (Merged)
Avatar
ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 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
Images (Click to enlarge)
Attached Media
Attached Media
May 19, 2021 at 6:50 PM (Merged)
Avatar
JCLINT
  • MEMBER
  • 0 POST
I had this problem it was the main headlight switch. Thanks for the guide. I love this site.

May 19, 2021 at 6:50 PM (Merged)