LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> LS 460L >> Repair and Diagnosis >> Body & Frame >> Seats >> Lumbar Support Adjuster Assembly >> Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Lumbar Support Adjuster Assembly: Inspection

  1. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY LH 
    1. Check operation of the lumbar support adjuster (Up - Down).
      1. Check if the lumbar support adjuster moves smoothly when the battery is connected to the lumbar support adjuster motor connector terminals.

        OK 

        LUMBAR SUPPORT ADJUSTER OPERATION CHART

        Measurement Condition Operation Direction
        Battery positive (+) → 2
        Battery negative (-) → 1        		 Upward
        Battery positive (+) → 1
        Battery negative (-) → 2        		 Downward
        Fig 1: Checking Lumbar Support Adjuster Operation (Up - Down)
        G04953156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    2. Check operation of the lumbar support adjuster (Forward - Back).
      1. Check if the lumbar support adjuster moves smoothly when the battery is connected to the lumbar support adjuster motor connector terminals.

        OK 

        LUMBAR SUPPORT ADJUSTER OPERATION CHART

        Measurement Condition Operation Direction
        Battery positive (+) → 2
        Battery negative (-) → 1        		 Forward
        Battery positive (+) → 1
        Battery negative (-) → 2        		 Backward
        Fig 2: Checking Lumbar Support Adjuster Operation (Forward - Back)
        G04953157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

  2. INSPECT LUMBAR SUPPORT ADJUSTER ASSEMBLY RH 
    1. Check operation of the lumbar support adjuster (Forward - Back).
      1. Check if the lumbar support adjuster moves smoothly when the battery is connected to the lumbar support adjuster motor connector terminals.

        OK 

        LUMBAR SUPPORT ADJUSTER OPERATION CHART

        Measurement Condition Operation Direction
        Battery positive (+) → 2
        Battery negative (-) → 1        		 Forward
        Battery positive (+) → 1
        Battery negative (-) → 2        		 Backward

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

scientia non olet · About LEMON Manuals