Toyota Lexus Gs430, Gs300. Uzs190 Grs190THEFT DETERRENT THEFT DETERRENT SYSTEM PRECAUTION PARTS LOCATION SYSTEM DIAGRAM SYSTEM DESCRIPTION HOW TO PROCEED WITH TROUBLESHOOTING CUSTOMIZE PARAMETERS PROBLEM SYMPTOMS TABLE TERMINALS OF ECU DIAGNOSIS SYSTEM DATA LIST / ACTIVE TEST ON-VEHICLE INSPECTION Engine Hood Courtesy Switch Circuit Horn Circuit Security Horn Circuit Theft Warning Siren Circuit Security Indicator Light Circuit ECU Power Source Circuit IG Power Source Circuit ENGINE HOOD COURTESY SWITCH ON-VEHICLE INSPECTION SECURITY HORN ASSEMBLY ON-VEHICLE INSPECTION