No headlights!

I have no headlights. Low beam fuses are good but no power to them. Relays are good. I have hi beams, fog lights and DRL lights. Headlights are stock with slightly brighter Sylvania bulbs. Just need a little help in which direction to go. Under dash fuses are well labeled but nothing pertaining to headlights. Any ideas? Just happened last night.

 

test light or multi-meter check that there is voltage at the light plug?

sylvania has a poor longevity rep around here

 

Have you tried putting the stock bulbs back in just to eliminate the bulb as an issue? You'd be surprised at how easy it is for someone to drive around with one headlight and not notice until they're both out.

 

Put stock bulbs in.

 

Just for clarity's sake, you do know there are 3 low beam fuses, right? One for each side and another for both.

 

Thx for the replies. I have voltage at the fuse, no voltage at the light plug. I had these bulbs in for 6 1/2 years. Bought the truck with 2 miles on it. Both lights went out when I was driving. It is somewhere between the fuse box and lights of course.I did swap relays but the same results.

 

look for rodent damage

 

My guess is the main body ECU is not providing ground for the low beam relay like it’s supposed to. On that HRLY wire on caribe’s diagram.

 

Remove the relay, jump the terminals 3 & 5. Check for voltage at fuses before lamps.

 

Thanks for all your replies. Just wanted to update. I decided to take your advice of just replacing the bulbs and problem solved. I just figured it really couldn't be anything else. I apparently lost one bulb and then the other right after. Turns out while I was checking voltage on the fuses and light plug i pulled out the hi beam plug instead of the lo beam plug. Duhh.... Oh well all is good now. Thx.