Howdy all,
So long story short, even though my truck isn’t a sport model (VIN 3B7HC13Z0YG160140) it came with the dual headlights, stock adapters, and front fenders with the cutouts for said headlights when I purchased it. They worked fine but the housings were cracked and damaged so I opted to replace them with a single light headlight assembly since that was a cheaper option at the time.

Baking in the southern CA sun did a number on the chinesium ones I bought so I just snagged a new pair and went back to the dual ones. However, now only one of two sets of lights illuminate (there are two clips, one with a blue wire and one with a black one), which is whatever set of lights has the black wired clip attached. I additionally no longer have brights. I’ve always had an issue with fast blinkers (no burnt fuses, relays, or bulbs) but I’m fairly certain that’s because I need to get a load resistor since LEDs have much less resistance than the stock halogen bulbs, correct me if I’m wrong but perhaps this is also the issue with the dual headlights not working? Anyone have any advice?

Thanks yall!

 

Do you have LED headlight bulbs?

For the turn signals, you can get an electronic flasher, and can skip the resistor.

 

Yeah I have LED bulbs in everything. Is an electronic flasher specific to these trucks or can I get a generic one?

 

Not sure on the flasher, talk to your local auto parts store.

On your truck, I think the headlight switch controls the ground side of the circuit.... as LED's are polarity sensitive, that might be the problem.