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Rear Sunshade Assembly: Inspection

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT REAR SUNSHADE ASSEMBLY 
    1. Hold the edges of the rear sunshade with your hands, as shown in the illustration
    2. Apply battery voltage to the rear sunshade motor and check the operation of the rear sunshade

    OK 

    VOLTAGE SPECIFICATION

    Measurement Condition Specified Condition
    Battery positive (+) → terminal 2 (RSMU)
    Battery negative (-) → terminal 1 (RSMD)
    Rear sunshade rises
    Battery positive (+) → terminal 1 (RSMD)
    Battery negative (-) -* terminal 2 (RSMU)
    Rear sunshade lowers

    HINT:

    To prevent the motor from burning out, stop operation as soon as the rear sunshade is fully raised or lowered

    Fig 1: Identifying Rear Sunshade Assembly
    G05786832Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    CAUTION: Be careful when the rear sunshade rises and lowers. Something could get caught in the rear sunshade and cause an injury.

    If the result is not as specified, replace the rear sunshade assembly

  2. INSPECT CURTAIN SWITCH ASSEMBLY 
    1. for Fixed Seat Type

      Remove the curtain switch assembly (see REMOVAL )

    2. for Power Seat

      Remove the curtain switch assembly (see REMOVAL )

    3. Measure the resistance according to the value (s) in the table below

    Standard resistance 

    RESISTANCE REFERENCE

    Tester Connection Switch Condition Specified Condition
    8 (SW1) -15 (GND) Rear Sunshade Switch ON Below 200 Ω

    If the result is not as specified, replace the curtain switch.

  3. INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY 
    1. Remove the integration control and panel assembly (see REMOVAL )
      Fig 2: Identifying Rear Sunshade Switch
      G05786833Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value (s) in the table below

    Standard resistance 

    RESISTANCE REFERENCE

    Tester Connection Switch Condition Specified Condition
    8-12 Rear sunshade switch is pushed Below 200 Ω
    8-12 Rear sunshade switch is not pushed 10 kΩ or higher

    If the result is not as specified, replace the integration control and panel