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:

Inspection
1. INSPECT SPEED SENSOR (NT SENSOR) (a) Disconnect the speed sensor connector from the transaxle. (b) Measure the resistance according to the value(s) in the table below. AISIN made: TOYOTA made: 2. INSPECT SPEED SENSOR (NC SENSOR) (a) Disconnect the speed sensor connector from ...

Diagnostic trouble code chart
1. DTCS FOR AIRBAG SYSTEM If a malfunction code is displayed during the DTC check, check the circuit listed for the code in the table below (Proceed to the page listed for that circuit). HINT:  When the SRS warning light remains on and the DTC output is the normal system code, a volta ...

Driving Position Memory Switch Circuit (w/ Memory)
DESCRIPTION The seat memory switch sends signals to the outer mirror control ECU LH via the multiplex communication system to memorize a given seat position. This memory system does not use a position sensor. The seat position is detected by counting pulses that are output when the motor tu ...