Inspection [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH

Check the operation of the lumbar support adjuster assembly LH.

Fig 1: Identifying Power Front Seat 2 Terminal Connector End View

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

Condition	Operational Direction
Auxiliary battery positive (+) → Terminal 1 Auxiliary battery negative (-) → Terminal 2	Seatback moves forward
Auxiliary battery positive (+) → Terminal 2 Auxiliary battery negative (-) → Terminal 1	Seatback moves backward

TEXT IN ILLUSTRATION

*a	Component without harness connected (Lumbar Support Adjuster Assembly LH)

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

INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH

Check the operation of the lumbar support adjuster assembly RH.

Fig 2: Identifying Power Front Seat 2 Terminal Connector End View

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

Condition	Operational Direction
Auxiliary battery positive (+) → Terminal 1 Auxiliary battery negative (-) → Terminal 2	Seatback moves forward
Auxiliary battery positive (+) → Terminal 2 Auxiliary battery negative (-) → Terminal 1	Seatback moves backward

TEXT IN ILLUSTRATION

*a	Component without harness connected (Lumbar Support Adjuster Assembly RH)

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