Golf Cart Headlights Not Working. Check to see if head light switch is getting power with dvom,(no power either fuse blown, loose plug, break in wire,corrosion,etc.), then check to see if power is coming out of switch, if power coming out of switch, check for power at bulb sockets, no power coming from switch(switch faulty). However, in general terms, a few reasons why golf cart lights tend to fail are given below:

Driving lights should be wired separte from the headlights and power should come from the battery and be with an inline fuse and relay, if you connect to headlights you may blow the headlight fuse due to amp draw on the same fuse and may heat wiring or headlight switch and cause premuture failure, good day, I have a 2012 ezgo golf cart. What you will need to do is check what voltage your cart is running at.