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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2019 Posts: 2,242 Herder of Cats, Goats, and Sheep (moderator) | | Herder of Cats, Goats, and Sheep (moderator) Joined: Jan 2019 Posts: 2,242 | When the new 12V harness was put in, were the headlights put on relays? If so, maybe the low beam relay croaked.
I would unplug on of the headlights, check your resistance to ground, then check the voltage of each of the terminals with the headlight switch on and the dimmer in each position.
You could also have a problem in the dimmer. They get a lot of abuse and are not in the best postion. Meausuring the voltage at the terminals will tell you if you are getting voltage (full or reduced) there.
Either way, that will tell you where to look next. | | |
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