Toyota Avalon Service & Repair Manual: 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 seatback 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 FRONT SEAT HEADREST SUPPORT

Click here

8. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD

Click here

9. REMOVE SEPARATE TYPE FRONT SEATBACK COVER

Click here

10. REMOVE FRONT SEATBACK HEATER ASSEMBLY

(a) Remove the 16 tag pins and front seatback heater assembly from the separate type front seatback cover.

    Installation

    Lumbar Support Adjuster Assembly

    See More:

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    CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the lighting system (for HV Model without Cornering Light). *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT: In troubleshooting, confirm that the problem symptoms have bee ...

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