Toyota Sienna Service Manual: Horn

Indicator Circuit

DESCRIPTION The indicator displays the location of the obstacle and the approximate distance between the vehicle and the obstacle either by blinking or turning on. WIRING DIAGRAM INSPECTION ...

Horn system

PARTS LOCATION PROBLEM SYMPTOMS TABLE HORN SYSTEM ...

Other materials:

Adjustment
HINT: If the malfunction does not disappear by following the procedure in ADJUSTMENT and the rear No. 2 seat assembly needs to be replaced, do not disassemble the rear No. 2 seat assembly. 1. ADJUST FRONT LEG HINT: Perform the following procedure if the inner leg does not lock. P ...

Front Occupant Classification Sensor LH Circuit Malfunction
DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction DESCRIPTION The front occupant classification sensor LH circuit consists of the occupant classification ECU and the front occupant classification sensor LH. DTC B1780 is recorded when a malfunction is detected in the fron ...

Installation
1. INSTALL OCCUPANT CLASSIFICATION ECU  Check that the ignition switch is off.  Check that the negative battery (-) terminal is disconnected. CAUTION: After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation. &nbs ...