has stopped working completely, the unit is dead all threw the harness, has this happened to anyone else? suggestions? to the diagnostic questions- checked the fuses, passenger side high works fine, checked the plug to the fuse box, its just dead

 

sure you did this... but did you replace the bulb? or check for power/resistance to ground?

 

i did check the ground and the bulb was the first thing i checked

 

Check your relays..just a thought...I was messing with relays in my dash and one of them seemed to mess with the passenger side headlight or had something to do with the headlights

 

Vehicle information? I can make an assumption based on your username, but this is basic information that needs to be posted whenever requesting help...