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Home >> Lexus >> 2020 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System (Diagnostics - Symptom Tests (2 Of 2) >> Navigation System >> Switch Operation of Remote Touch not Accepted [10/2015 - 08/2019] >> Procedure

Switch Operation of Remote Touch not Accepted [10/2015 - 08/2019]: Procedure

  1. START DIAGNOSTIC MODE 
    1. Enter diagnostic mode and check if the "Service Menu" screen is displayed.

      Refer to DTC CHECK / CLEAR [10/2015 - 08/2019]

      OK

      The "Service Menu" is displayed.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  3

    Result: 

    OK 

    See step  2

  2. CHECK PANEL SWITCH (OPERATION CHECK) 
    1. Enter the "Panel&Steering Switch Check Mode" screen. Refer to Check Panel & Steering Switch in Operation Check.

      Refer to OPERATION CHECK [10/2015 - 12/2017] , or refer to OPERATION CHECK [12/2017 - 08/2019]

      GTY314872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Operate the abnormal switch and check if the switch status is correctly displayed.

      OK

      The switch status is correctly displayed as operated.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    NG 

    See step  3

  3. REMOTE TOUCH SELF CHECK (SWITCH OPERATION CHECK) 
    1. Activate self check mode.

      Refer to OPERATION CHECK [10/2015 - 12/2017] , or refer to OPERATION CHECK [12/2017 - 08/2019]

    2. Check switch operation.
      GTY618005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Switch Illumination
      *b Switch Knob
      1. Move the remote touch switch knob to the lower left.
      2. Check that the "HOME", "MAP" or "MENU" switches illuminate when each switch on the remote touch is pressed.

        Result

        Result Proceed to
        Self check mode cannot be activated. A
        The "HOME", "MAP" or "MENU" switch does not illuminate when pressed.
        The "HOME", "MAP" and "MENU" switches illuminate when they are pressed. B

    Result: 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2015 - 08/2016]  , or refer to  REMOVAL [08/2016 - 03/2018]  , or refer to  REMOVAL [03/2018 - 08/2019] 

    Result: 

    See step  4

  4. REPLACE REMOTE OPERATION SWITCH 
    1. Replace the remote operation switch with a new or known good one.

      Refer to DISASSEMBLY [10/2015 - 12/2017] , or refer to DISASSEMBLY [12/2017 - 08/2019]

    2. Check that each remote touch switch operates normally.

      OK

      Each switch operates normally.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END 

    Result: 

    NG 

    REPLACE REMOTE OPERATION BOARD. Refer to  DISASSEMBLY [10/2015 - 12/2017]  , or refer to  DISASSEMBLY [12/2017 - 08/2019]