1990 Lexus LS 400

Electrical problem
1990 Lexus LS 400 V8 Two Wheel Drive Automatic 175000 miles

my car was on fire and burned the front passenger side wire harness. Everything on driver side worked, but on passenger side and front fans did not.I replaced the front warness. Everything works now, but the car will not start.I turn the ignition and I get all dash lights, but nothing to starter.I heared that my theft deterrent system may have me locked out. Is that true and how can I disconnect it, or what else can I do. Also where is it located and how to get to it.
August 7, 2008.

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