Toyota Sienna Service Manual: Front power seat lumbar switch

Front seat frame with adjuster

Inspection 1. INSPECT FRONT SEAT ADJUSTER SUB-ASSEMBLY LH  Check operation of the seat frame (slide motor).  Check if the seat frame moves smoothly when the battery is conne ...

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 ...

Other materials:

Torque Converter Clutch Solenoid Performance (Shift Solenoid Valve DSL)
SYSTEM DESCRIPTION The ECM uses the signals from the throttle position sensor, air-flow meter, turbine (input) speed sensor, intermediate (counter) shaft speed sensor and crankshaft position sensor to monitor the engagement condition of the lock-up clutch. Then the ECM compares the eng ...

Inspection
1. V (a) Inspect VSV operation. (1) Using an ohmmeter, measure the resistance according to the value(s) in the table below.V Standard resistance If the result is not as specified, replace the vsv. (B) inspect the vsv for ground. (1) Using an ohmmeter, measure the resistance accordin ...

Disassembly
1. Remove repair service starter kit (a) Remove the nut and disconnect the lead wire from the repair service starter kit. (b) Remove the 2 screws which are used to secure the repair service starter kit to the repair service starter kit. (c) Remove the repair service starter kit. ( ...