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Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Theft Deterrent System (Diagnostics & Circuit Tests) >> Theft Deterrent System >> Circuit Tests >> Horn Circuit [10/2015 - ] >> Description

Horn Circuit [10/2015 - ]: Description

When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the horns to sound at intervals of 0.4 seconds.