head lights go off when high beams are activated?

2002 BUICK CENTURY
14,000 MILES • 6 CYL • FWD • AUTOMATIC
Avatar
FOUR
  • MEMBER
  • 1 POST
The headlights go off when the high beams are activated. The only way to keep the headlights and the high beams on is to hold the switch. If you let the multi function switch go, you lose all lights on the vehicle. We have replaced the multi function switch, but it has not corrected the problem. Do you think it could be the headlight relay switch. Thank you, looking forward to hearing for you. Sincerely ALex.
Nov 9, 2008 at 1:33 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
It sounds like there is a bad ground which is located below the dash on the left side of the steering column I would check that first, here is a headlight wiring diagrams so you can see how the system works this guide can help you test the ground.

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

Check out the images (Below). Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Nov 12, 2008 at 7:18 PM
Avatar
AZHOMBRE
  • MEMBER
  • 6 POSTS
Yep, that was the problem on my car,
Jun 19, 2009 at 7:41 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.