Toyota Avalon (XX50): Front Seat Cushion Heater

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Seat / Front Seat Cushion Heater

Components

COMPONENTS

ILLUSTRATION

*1

FRONT SEAT CUSHION SHIELD

*2

FRONT SEAT FRONT CUSHION SHIELD

*3

FRONT SEAT INNER CUSHION SHIELD

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ILLUSTRATION

*1

SEPARATE TYPE FRONT SEATBACK ASSEMBLY

*2

SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY

Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

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-

ILLUSTRATION

*1

SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

*2

SEPARATE TYPE FRONT SEAT CUSHION SPRING ASSEMBLY

ILLUSTRATION

*1

FRONT SEAT CUSHION HEATER ASSEMBLY

*2

SEPARATE TYPE FRONT SEAT CUSHION COVER

*3

SEPARATE TYPE FRONT SEAT CUSHION PAD

*4

TAG PIN

*5

HOG RING

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-

в—Џ

Non-reusable part

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Installation

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

PROCEDURE

1. INSTALL FRONT SEAT CUSHION HEATER ASSEMBLY

(a) Install the front seat cushion heater assembly to the separate type front seat cushion cover with 34 new tag pins.

2. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER

Click here

3. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

Click here

4. INSTALL SEPARATE TYPE FRONT SEATBACK ASSEMBLY

Click here

5. INSTALL FRONT SEAT INNER CUSHION SHIELD

Click here

6. INSTALL FRONT SEAT CUSHION SHIELD

Click here

7. INSTALL FRONT SEAT FRONT CUSHION SHIELD

Click here

8. CONNECT SEPARATE TYPE FRONT SEATBACK COVER

Click here

9. INSTALL FRONT SEAT ASSEMBLY

Click here

Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during front seat cushion heater assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
*: When performing learning using the Techstream.

Click here

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

  • Occupant detection ECU
  • Front passenger seat

Zero point calibration (Occupant classification system)
  • Occupant classification system
  • Passenger airbag ON/OFF indicator
  • Airbag system (Front passenger side)
  • Seat belt warning system (Front passenger)

  • Separate type front seat cushion spring assembly LH
  • Front seatback frame sub-assembly LH
  • Position control ECU assembly

Initialize position control ECU

Front power seat control system

Necessary Procedures After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
*: When performing learning using the Techstream.

Click here

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for HV Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

  • Occupant detection ECU
  • Front passenger seat

Zero point calibration (Occupant classification system)
  • Occupant classification system
  • Passenger airbag ON/OFF indicator
  • Airbag system (Front passenger side)
  • Seat belt warning system (Front passenger)

  • Separate type front seat cushion spring assembly LH
  • Front seatback frame sub-assembly LH
  • Position control ECU assembly

Initialize position control ECU

Front power seat control system

CAUTION:

  • Be sure to read Precaution thoroughly before servicing.

    for Gasoline Model: Click here

    for HV Model: Click here

  • Wear protective gloves. Sharp areas on the parts may injure your hands.

HINT:

  • Use the same procedure for the RH side and LH side.
  • The following procedure is for the LH side.

PROCEDURE

1. REMOVE FRONT SEAT ASSEMBLY

Click here

2. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

Click here

3. REMOVE FRONT SEAT FRONT CUSHION SHIELD

Click here

4. REMOVE FRONT SEAT CUSHION SHIELD

Click here

5. REMOVE FRONT SEAT INNER CUSHION SHIELD

Click here

6. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

Click here

7. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

Click here

8. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER

Click here

9. REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY

(a) Remove the 34 tag pins and front seat cushion heater assembly from the separate type front seat cushion cover.

Front Seat Assembly

Front Seatback Heater

See More:

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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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