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Home >> Lexus >> 2011 >> IS 250 AWD V6-2.5L (4GR-FSE) >> Repair and Diagnosis >> Accessories and Optional Equipment >> Antitheft and Alarm Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> Theft Deterrent System >> Horn Circuit

Horn Circuit





THEFT DETERRENT: THEFT DETERRENT SYSTEM: Horn Circuit
- Horn Circuit

DESCRIPTION

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

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT HORN

(a) Inspect horn operation.

(1) Press the horn switch and check if the horns sound.

Result:





B -- GO TO HORN SYSTEM

A -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE