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:

Communication Error from VSC to ECM
DTC P1630 Communication Error from VSC to ECM DTC U0122 Lost Communication with Vehicle Dynamics Control Module DESCRIPTION The skid control ECU sends signals such as cruise control cancel demand signals and brake operation demand (from ECM) response signals to the ECM when the dynamic laser ...

Rear Power Seat Switch Circuit
DESCRIPTION When the power rear no. 2 seat switch is operated, a recline signal is sent to the fold seat control ECU. The ECU activates the reclining motor based on the signal from the power rear no. 2 seat switch. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT FOLD SEAT CONTROL ECU ...

Installation with LATCH system (second seat)
Fold the seatback while pulling the lever and move to the rearmost recline position. Widen the gap between the seat cushion and seatback slightly. Type A Latch the hooks of the lower straps onto the LATCH anchors. If the child restraint has a top tether strap, the ...