Attached is the ETM (Electrical Troubleshooting Manual). Headlights start on page 100 (pdf page 129). Hope it helps.
Also, keep in mind that there is a wire bundle that goes over the passenger fender that has been known to chafe and short. I have no idea if the headlight wires are contained in that bundle.
FYI, I removed my attached file because it's located here:
http://www.vehicross.info/modules.ph...warticle&id=19