I have the low beam lights working?

2000 FORD F-350
300,000 MILES • 7.3L • V8
Avatar
ROBERTKEARL
  • MEMBER
  • 1 POST
I have the low beam lights working. The high beams are not working at all. When I pull back on the switch to flash the brights no lights and the indicator light does not come on either. I have put power to the high beam wire and the lights come on, so I know the lamps are good. Have checked all the fuses as well
Nov 13, 2015 at 3:28 PM
Advertisement
Avatar
WRENCHTECH
  • CERTIFIED EXPERT
  • 20,761 POSTS
You'll have to test the wiring to be sure but it's likely a bad dimmer switch.
Nov 13, 2015 at 3:54 PM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
This sounds like the headlight switch is bad, but we should check the fuses. If the fuses are okay, I would test through the multifunction switch and the headlight switch as well. This guide can help you test the fuses and check for power, and I have included the headlight wiring diagrams so you can see which fuses to test and how the system works.

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


Check out the images (below). Please upload pictures or videos in your response to the problem so we can see what's going on.


Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Attached Media
Jan 23, 2024 at 1:45 PM
Advertisement