Tundra 4WD V8-5.7L (3UR-FE) (2007)
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Alarm Horn: Testing and Inspection
Horn Circuit
Horn Circuit
DESCRIPTION
When the theft deterrent system changes from the armed state to the alarm sounding state, the main body ECU transmits a signal to cause the horns to
sound at 0.4 second intervals.
Wiring Diagram
Step 1
INSPECTION PROCEDURE
