Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: System Description

SYSTEM DESCRIPTION

REAR POWER SEAT CONTROL SYSTEM DESCRIPTION

  • The rear No. 2 power seats have fold , return and jam protection functions.
  • Each rear No. 2 power seat can be operated independently.

FUNCTION OF MAIN COMPONENTS

Component

Function

  • No. 2 Seatback Frame Sub-assembly LH (Reclining Motor)
  • No. 2 Seatback Frame Sub-assembly RH (Reclining Motor)

Uses power supplied from the fold seat control ECU (LH/RH seat) to operate and fold or return the rear No. 2 seatback. Uses a built in Hall IC to detect the position of the rear No. 2 seatback.

  • No. 2 Seat Cushion Frame Sub-assembly LH (Lifter Motor)
  • No. 2 Seat Cushion Frame Sub-assembly RH (Lifter Motor)

Uses power supplied from the fold seat control ECU (LH/RH seat) to operate and fold or return the rear No. 2 seat cushion. Uses a built in Hall IC to detect the position of the rear No. 2 seat cushion.

  • Fold Seat Switch Assembly
  • No. 1 Fold Seat Switch Assembly

Outputs rear No. 2 seat fold and return operation signals to the fold seat control ECU (LH/RH seat) to perform a fold or return operation of the rear No. 2 power seat.

Fold Seat Control ECU (LH/RH seat)

Receives signals from each seat switch and operates the reclining motor and lifter motor to fold and return the rear No. 2 power seat. Sounds a buzzer if conditions for the requested operation are not met or a jam is detected.

    Parts Location
    PARTS LOCATION ILLUSTRATION *1 ENGINE ROOM RELAY BLOCK AND JUNCTION BLOCK ASSEMBLY - P/SEAT R/R FUSE - P/SEAT R/L FUSE *2 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-DCC NO. 2 FUSE - ECU- ...

    System Diagram
    SYSTEM DIAGRAM ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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