Yeah matey, I think you went the wrong way. There may be a fault in the wiring to the headlight switch. If all else fails, try this 1st, keep it simple. Check the high beam fuse in the in-car fuse box, if thats ok, make sure all fuses under the hood are good also, keep me posted.
**Working PART-TIME for Carjunky for a while, Please bare with me =)**