Hello,
I would love that wiring diagram. I came home tonight and seen that I had no low beams. I made to home but now the horse is down. looked in the chilton book and the car manual but no instructions. I drive a 2000 SSEi. I really dont want to take it to the man, but I just can't seem to find any instructions. Any advise will help

Did you check the fuses?

If you have a 12-v Automotive Test light test the hot wire on the headlamp with the headlight switch on to see if you are getting power to the socket.

I had this happen on my 97' and it was the dimmer (high beam) switch, however I don't know how much changed from my generation to yours.