Toyota Sienna Service Manual: Front seat assembly (for Flat Type)

Inspection

1. INSPECT SEAT HEATER SWITCH LH  Measure the resistance of the seat heater switch when the switch is operated. Resistance If the result is not as specified, replace the switch. ...

Removal

CAUTION:  Wear safety gloves, because the sharp surfaces of the seatback frame and seat adjuster may injure your hand.  Work must be started more than 90 seconds after the igniti ...

Other materials:

Lumbar support adjuster assembly
INSPECTION 1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY  Check operation of the lumbar support adjuster motor.  Check if the lumbar support adjuster moves smoothly when the battery is connected to the lumbar support adjuster motor connector terminal. OK If the r ...

Ignition Switch Circuit
DESCRIPTION The Multiplex network body ECU receives the ACC and IG signals from the ignition switch. WIRING DIAGRAM INSPECTION PROCEDURE 1 READ VALUE OF INTELLIGENT TESTER Connect the intelligent tester to DLC3.  Turn the ignition switch ON and push the intelligent tester main ...

Evaporator temperature sensor circuit
DESCRIPTION The evaporator temperature sensor (A/C thermistor) is installed on the evaporator in the air conditioning unit. It detects the temperature of the cooled air that has passed through the evaporator and its signal is used to control the air conditioning. It sends a signal to the A/C ...