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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Rear Seat Entertainment System - Diagnostic Codes & Circuit Tests >> Rear Seat Entertainment System >> Image or Sound from a Device Connected to the External Input Terminal is not Output [10/2022 - ] >> Procedure

Image or Sound from a Device Connected to the External Input Terminal is not Output [10/2022 - ]: Procedure

  1. CHECK CONNECTION OF CONNECTOR 
    1. Turn the ignition switch off.
    2. Check that the connectors are properly connected to the multi-display controller sub-assembly and disc player assembly.

      OK

      Connectors are properly connected.

      Result

      Result Proceed to
      The connectors are properly connected A
      The connectors are not properly connected B

    Result: 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY - CONSOLE BOX WIRE [HDMI TERMINAL]) 
    1. Disconnect the L263 multi-display controller sub-assembly connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      L263-1 (TM2+) - L262-1 (TM2+) Always Below 1 Ω
      L263-2 (TM2G) - L262-2 (TM2G) Always Below 1 Ω
      L263-3 (TM2-) - L262-3 (TM2-) Always Below 1 Ω
      L263-4 (TM1+) - L262-4 (TM1+) Always Below 1 Ω
      L263-5 (TM1G) - L262-5 (TM1G) Always Below 1 Ω
      L263-6 (TM1-) - L262-6 (TM1-) Always Below 1 Ω
      L263-7 (TM0+) - L262-7 (TM0+) Always Below 1 Ω
      L263-8 (TM0G) - L262-8 (TM0G) Always Below 1 Ω
      L263-9 (TM0-) - L262-9 (TM0-) Always Below 1 Ω
      L263-10 (TMC+) - L262-11 (TMC+) Always Below 1 Ω
      L263-11 (TMCG) - L262-12 (TMCG) Always Below 1 Ω
      L263-12 (TMC-) - L262-13 (TMC-) Always Below 1 Ω
      L263-13 (CEC) - L262-14 (CEC) Always Below 1 Ω
      L263-15 (SCL) - L262-15 (SCL) Always Below 1 Ω
      L263-16 (SDA) - L262-16 (SDA) Always Below 1 Ω
      L263-17 (GND) - L262-19 (GND) Always Below 1 Ω
      L263-18 (5V) - L262-17 (5V) Always Below 1 Ω
      L263-19 (HPD) - L262-18 (HPD) Always Below 1 Ω
      L263-1 (TM2+) - Body ground Always 10 kΩ or higher
      L263-2 (TM2G) - Body ground Always 10 kΩ or higher
      L263-3 (TM2-) - Body ground Always 10 kΩ or higher
      L263-4 (TM1+) - Body ground Always 10 kΩ or higher
      L263-5 (TM1G) - Body ground Always 10 kΩ or higher
      L263-6 (TM1-) - Body ground Always 10 kΩ or higher
      L263-7 (TM0+) - Body ground Always 10 kΩ or higher
      L263-8 (TM0G) - Body ground Always 10 kΩ or higher
      L263-9 (TM0-) - Body ground Always 10 kΩ or higher
      L263-10 (TMC+) - Body ground Always 10 kΩ or higher
      L263-11 (TMCG) - Body ground Always 10 kΩ or higher
      L263-12 (TMC-) - Body ground Always 10 kΩ or higher
      L263-13 (CEC) - Body ground Always 10 kΩ or higher
      L263-15 (SCL) - Body ground Always 10 kΩ or higher
      L263-16 (SDA) - Body ground Always 10 kΩ or higher
      L263-17 (GND) - Body ground Always 10 kΩ or higher
      L263-18 (5V) - Body ground Always 10 kΩ or higher
      L263-19 (HPD) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE HARNESS OR CONNECTOR (HDMI CABLE) 

    Result: 

    OK 

    See step  3

  3. CHECK REAR CENTER SEAT ARMREST ASSEMBLY (HDMI Terminal) 
    1. Replace the rear center seat armrest assembly with a new or known good one.

      Refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

      OK

      Malfunction disappears.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (REAR CENTER SEAT ARMREST ASSEMBLY [HDMI Terminal] IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY. Refer to  REMOVAL [10/2022 - ]