Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001A9Y8
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 -           ]
Title: SEAT: LUMBAR SUPPORT ADJUSTER ASSEMBLY: INSPECTION; 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]

INSPECTION

PROCEDURE

1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH

(a) Check the operation of the lumbar support adjuster assembly LH. (w/o Climate Control Seat System)

(1) Check that the front seatback moves smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly LH connector terminals.

OK:

Auxiliary Battery Connection

Operational Direction

Auxiliary battery positive (+) → Terminal 2

Auxiliary battery negative (-) → Terminal 1

Seatback moves forward

Auxiliary battery positive (+) → Terminal 1

Auxiliary battery negative (-) → Terminal 2

Seatback moves backward

If the result is not as specified, replace the lumbar support adjuster assembly LH.

*a

Component without harness connected

(Lumbar Support Adjuster Assembly LH)

(b) Check the operation of the lumbar support adjuster assembly LH. (w/ Climate Control Seat System)

*a

Component without harness connected

(Lumbar Support Adjuster Assembly LH)

(1) Check that the front seatback moves forward and backward smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly LH connector terminals.

OK:

Auxiliary Battery Connection

Operational Direction

Auxiliary battery positive (+) → Terminal 2

Auxiliary battery negative (-) → Terminal 1

Seatback moves forward

Auxiliary battery positive (+) → Terminal 1

Auxiliary battery negative (-) → Terminal 2

Seatback moves backward

If the result is not as specified, replace the lumbar support adjuster assembly LH.

(2) Check that the front seatback moves upward and downward smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly LH connector terminals.

OK:

Auxiliary Battery Connection

Operational Direction

Auxiliary battery positive (+) → Terminal 2

Auxiliary battery negative (-) → Terminal 1

Seatback moves upward

Auxiliary battery positive (+) → Terminal 1

Auxiliary battery negative (-) → Terminal 2

Seatback moves downward

If the result is not as specified, replace the lumbar support adjuster assembly LH.

*a

Component without harness connected

(Lumbar Support Adjuster Assembly LH)

2. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH

(a) Check the operation of the lumbar support adjuster assembly.

*a

Component without harness connected

(Lumbar Support Adjuster Assembly RH)

(1) Check that the front seatback moves forward and backward smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly RH connector terminals.

OK:

Auxiliary Battery Connection

Operational Direction

Auxiliary battery positive (+) → Terminal 2

Auxiliary battery negative (-) → Terminal 1

Seatback moves forward

Auxiliary battery positive (+) → Terminal 1

Auxiliary battery negative (-) → Terminal 2

Seatback moves backward

If the result is not as specified, replace the lumbar support adjuster assembly RH.

(2) Check that the front seatback moves upward and downward smoothly when the auxiliary battery is connected to the lumbar support adjuster assembly RH connector terminals.

OK:

Auxiliary Battery Connection

Operational Direction

Auxiliary battery positive (+) → Terminal 2

Auxiliary battery negative (-) → Terminal 1

Seatback moves upward

Auxiliary battery positive (+) → Terminal 1

Auxiliary battery negative (-) → Terminal 2

Seatback moves downward

If the result is not as specified, replace the lumbar support adjuster assembly RH.

*a

Component without harness connected

(Lumbar Support Adjuster Assembly RH)