Toyota RAV4 manuals

Toyota Sienna Service Manual: System description

1. DESCRIPTION OF POWER REAR NO. 2 SEAT WITH STOWING FUNCTION

  1.  A power rear no. 2 seat with stowing function has been adopted for the third-row seats.
  2.  The power rear no. 2 seat with stowing function electrically stows and returns the seat when the power folding seat switch is operated.
  3.  This system is adopted for both the left and right seats. Each system operates independently.

2. FUNCTIONS OF MAIN COMPONENTS

Components

Function

Folding Motor (Cushion Position Sensor) The fold seat control ECU provides the voltage that is used to operate the folding motor. The folding motor stows and returns the third-row seat. (A Hall type position sensor is installed in the folding motor to detect the seat cushion position.)
Reclining Motor (Seatback Position Sensor) The fold seat control ECU provides the voltage that is used to operate the reclining motor. The reclining motor reclines the seatback of the third-row seat back and forth. (A Hall type position sensor is installed in the reclining motor to detect the seatback position.)
Release Actuator The fold seat control ECU provides the voltage that releases the actuator that locks the seat leg.
Lock Switch Turns off when the third-row seat leg is secured to the floor and sends a signal to the fold seat control ECU.
Fold Lock Switch Turns off when the third-row seat cushion is stowed and sends a signal to the fold seat control ECU.
Power Rear No. 2 Seat Switch Sends a seatback angle adjustment signal to the fold seat control ECU when this switch is operated. The seatback angle is adjusted based on this signal.
Fold Seat Switch Sends a third-row seat folding-down, stowing, or return operation signal to the fold seat control ECU when this switch is operated. The third-row seat is folded down, stowed, or returned to the original position based on this signal.

3. SYSTEM OPERATION

SYSTEM OPERATION

  1. Original State
  2.  Stowed State
  3.  Folded-down State
  4.  Manual Operation (Press and hold the switch)
  5. Automatic Operation (Press and release the switch)
  1.  Return operation (from the stowed state to the original state)
  1.  Switch operation Push the stowing/return switch to the left and hold it to return the seat.
  2.  Conditions

HINT:

  1.  Stowing operation (from the original state to the stowed state)
  1.  Switch operation
    Push the stowing/return switch to the right and hold it to stow the seat.
  2.  Conditions

HINT:

  1.  Stowing operation (from the folded-down state to the stowed state)
  1.  Switch operation
    Push the stowing/return switch to the right and hold it to stow the seat.
  2.  Conditions

HINT:

  1.  Return operation (from the folded-down state to the original state)
  1.  Switch operation
  1.  Conditions

HINT:

  1.  Folding-down operation (from the original state to the folded-down state)
  1.  Switch operation
    Press and release the folding switch.
  2.  Conditions

HINT:

  1.  Reclining operation
  1.  Switch operation
    Press the power rear no. 2 seat switch.
  2.  Conditions

HINT: The operation will stop when the power rear no.

2 seat switch is released or when the seatback position reaches either end of the reclining operation range.

3. SYSTEM OPERATION

SYSTEM OPERATION

  1. Original State
  2. Stowed State
  3. Folded-down State
  4. Manual Operation (Press and hold the switch)
  5. Automatic Operation (Press and release the switch)
  1.  Return operation (from the stowed state to the original state)
  1. Switch operation Push the stowing/return switch to the left and hold it to return the seat.
  2.  Conditions

HINT:

  1.  Stowing operation (from the original state to the stowed state)
  1. Switch operation Push the stowing/return switch to the right and hold it to stow the seat.
  2.  Conditions

HINT:

  1.  Stowing operation (from the folded-down state to the stowed state)
  1.  Switch operation Push the stowing/return switch to the right and hold it to stow the seat.
  2.  Conditions

HINT:

  1.  Return operation (from the folded-down state to the original state)
  1. Switch operation
  1.  Conditions

HINT:

  1.  Folding-down operation (from the original state to the folded-down state)
  1.  Switch operation Press and release the folding switch.
  2.  Conditions

HINT:

  1.  Reclining operation
  1.  Switch operation Press the power rear no. 2 seat switch.
  2.  Conditions

HINT: The operation will stop when the power rear no.

2 seat switch is released or when the seatback position reaches either end of the reclining operation range.

Precaution
1. Before operating the power rear no. 2 seat with stowing function, make sure that there is nothing in the path of the seat. CAUTION: If someone or something is caught between the seat and other ...

How to proceed with troubleshooting
HINT:  Use these procedures to troubleshoot the power folding seat system.  *: Use the intelligent tester. 1 VEHICLE BROUGHT TO WORKSHOP 2 INSPECT BATTERY VOLTAGE Standard volta ...

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