Theft Deterrent. Theft Deterrent System (W/ Intrusion Sensor) Horn Circuit

Securities. Lexus Is250, Is220D. Gse20 Ale20

Theft Deterrent. Lexus Is250, Is220D. Gse20 Ale20

THEFT DETERRENT SYSTEM (w/ Intrusion Sensor) - 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

Lexus Is250, Is220D. Gse20 Ale20.Theft Deterrent.Theft Deterrent System (W/ Intrusion Sensor).Theft Deterrent System (W/ Intrusion Sensor) Horn Circuit

INSPECTION PROCEDURE

1.INSPECT HORN

Inspect horn operation.
1. Press the horn switch and check if the horns sound.
  
  Result:
  
  Result
  Go to
  Horns sound
  A
  Horns do not sound
  B

GO TO HORN SYSTEM

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Result	Go to
Horns sound	A
Horns do not sound	B