any suggestions where to look?

[rollbar]

I own a 4520 jd less than two years old. I had a fuel sender replaced and about two months later I turned on the head lights ,which I had not used since having the fuesender replaced,the flashers come on but the headlights do not. before I take it back to the dealer any suggestions where to look first to check for a loose wire or bad switch? thanks for any help

 

[orlo]

I'd first check the headlight connector under the hood. It's possible that it came disconnected or was disconnected by accident when the fuel sender work was done. It's right up front under the hood behind the lights.