Both high beams lights not working?

2006 CHEVROLET TRAILBLAZER

126,000 MILES • 6 CYL • 4WD • AUTOMATIC

JJV_119

MEMBER
2 POSTS

Hi, my vehicle listed above EXT model, both high beam lights are not working. I checked the bulbs, fuse and relay and are appeared to be working.

What do you suggest I try next?

Thanks,
John

Nov 15, 2023 at 8:03 PM

STRAILER

✓Experienced Mechanic
55,097 POSTS

There is a headlamp relay #43 we need to look at because it sounds like it is not working. Here is the location of the relay and I have included the headlight high beam and low beam wiring diagrams so you can see how the system works as well. Check out the images (below). Let us know how it goes.

Images (Click to enlarge)

Professional Diagram for 2CarPros Members
Click here to log in and view diagram.

Nov 16, 2023 at 3:03 AM

JJV_119

MEMBER
2 POSTS

Thanks for the help the relay was the problem.

Nov 17, 2023 at 6:08 AM

STRAILER

✓Experienced Mechanic
55,097 POSTS

Thanks for letting us know, we are here to help, please use 2CarPros anytime.

Nov 17, 2023 at 9:08 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.