Hello I have a 2000 Nissan Maxima and I did a 03 headlight mod I used a relay harness. So after 2 years now my headlights won't turn off. First do these relay harnesses go bad? Two is my turn stock switch going bad?

Any help would be great.

I checked all the fuses. Everything ok.

 

Anything that is made by man is guaranteed to go bad. But what the time frame is, who knows.

Headlight switches usually become inoperative, won't turn the lights on.

The relay harness you used, where is it from? do you have the schematic for it?

 

Hello and thank you for the reply I order the harness from eBay so I was thinking that maybe the relay harness is bad. My turning signals work and the parking lights work they turn on and off. It's just my headlights will not turn off even when I open the door.