INSPECTION PROCEDURE 1. CHECK STEERING ANGLE SENSOR (a) Check the steering angle sensor. Under any of the following conditions, replace the sensor with a new one:
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Toyota Tundra Service Manual > Theft Deterrent System: Horn Circuit
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 horn to sound at intervals of 0.4 seconds. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for cir ...