I have headlights that I got off ebay a couple years ago that have separate low/high beam lamps. Recently the low beam lamp stopped working, so I replaced it, and it still doesn't work. I took the headlight assembly off and checked the voltage on the plug that connects the wires to the headlight and get 0v. As a comparison, when the high beams are on, I get 11-12v on the high beam's wire. I checked the fuses and they seem to be fine. Is there anything else I can check without tracing the entire wire?

Also, the other side low beam works fine, it's just the passenger side that doesn't

 

Any ideas??

 

Swap the relays around in the engine bay fuse panel ?

 

Which ones? There doesn't seem to be a headlamp relay, only the running/fog light relay. Those lights work fine.

 

No headlamp relays. The 2 high beams are on the same fuse (#33) but the lows have separate fuses right and left (#8 and #4).

 

Yeah I checked those fuses and they are fine. At first it was only the passenger side low beam that wasn't working but now neither will work. Any other suggestions? I have read that it might be the multifunction switch but don't really know how to troubleshoot it.

 

What's the watt rating of the headlamps? Aftermarket bulbs or stock?

 

Finally got these working, although all I did was mess around with the light toggle switch, replace bulbs (which I had already done), and tighten some connections. Guess the problem was a combination of all those

 

What headlights are these?

 

They were some cheap euro headlights from ebay, but the bulbs were H1 halogens