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Home >> Lexus >> 2021 >> ES 350 Luxury >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Interior/Exterior Trim >> Rear Sunshade System (Except HTBRID) - Diagnostics & Symptom Tests >> REAR SUNSHADE SYSTEM (for Gasoline Model) >> Rear Sunshade does not Operate with Rear Sunshade Switch [06/2018 - ] >> Procedure

Rear Sunshade does not Operate with Rear Sunshade Switch [06/2018 - ]: Procedure

  1. INSPECT REAR SUNSHADE SWITCH (REFRESHING SEAT SWITCH) 
    1. Remove the rear sunshade switch (refreshing seat switch).

      Refer to REMOVAL [06/2018 - ]

    2. Inspect the rear sunshade switch (refreshing seat switch).

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR SUNSHADE SWITCH (REFRESHING SEAT SWITCH). Refer to  REMOVAL [06/2018 - ] 

    Result: 

    OK 

    See step  2

  2. INSPECT REAR WINDOW SHADE ASSEMBLY 
    1. Remove the rear window shade assembly.

      Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

    2. Inspect the rear window shade assembly.

      Refer to INSPECTION [06/2018 - ]

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE REAR WINDOW SHADE ASSEMBLY. Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (REAR SUNSHADE RELAY - POWER SOURCE AND BODY GROUND) 
    1. Measure the voltage and resistance according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      N63-8 (B) - Body ground Always 11 to 14 V
      N63-7 (IG) - Body ground Engine switch off Below 1 V
      N63-7 (IG) - Body ground Engine switch on (IG) 11 to 14 V

      Standard Resistance

      Tester Connection Condition Specified Condition
      N63-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (REAR SUNSHADE RELAY - REAR SUNSHADE SWITCH (REFRESHING SEAT SWITCH) AND BODY GROUND) 
    1. Disconnect the N63 rear sunshade relay connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N63-5 (RSW) - G35-5 (ECU) Always Below 1 Ω
      N63-5 (RSW) or G35-5 (ECU) - Body ground Always 10 kΩ or higher
      G35-6 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REAR SUNSHADE RELAY. Refer to  REMOVAL [06/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - 09/2022]  , or refer to  REMOVAL [09/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR