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Inspection Procedure

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  1. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY) 
    1. Disconnect the television display assy and multi display controller sub-assy connectors.
    2. In order to check for an open circuit, measure the resistance between the terminals, as shown in TELEVISION DISPLAY ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (OPEN CIRCUIT)  .

      Standard: 

      TELEVISION DISPLAY ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (OPEN CIRCUIT)

      Tester connection Specified condition
      NTSC - NTS2 Below 1 Ω
      S. GND-SGN2 Below 1 Ω
      SLD - SG9 Below 1 Ω
    3. In order to check for a short circuit, measure the resistance between the terminals, as shown in TELEVISION DISPLAY ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (SHORT CIRCUIT)  .

      Standard: 

    TELEVISION DISPLAY ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (SHORT CIRCUIT)

    Tester connection Specified condition
    NTSC - Body ground 10 kΩ or higher
    S. GND - Body ground 10 kΩ or higher
    SLD - Body ground 10 kΩ or higher
    Fig 1: Checking Harness And Connector (Television Display Assy - Multi-display Controller Sub-Assy)
    G02630425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. REPLACE TELEVISION DISPLAY ASSY 

    OK: Malfunction disappears 

    1. OK: NORMAL 
    2. NG: REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY 


  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY) 
    1. Disconnect the radio receiver assy and multi-display controller sub-assy connectors.
    2. In order to check for an open circuit, measure the resistance between the terminals, as shown in RADIO RECEIVER ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (OPEN CIRCUIT)  .

      Standard: 

      RADIO RECEIVER ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (OPEN CIRCUIT)

      Tester connection Specified condition
      R-R+ - R-R+ (*1) Below 1 Ω
      R-R-R-R-(*1) Below 1 Ω
      R-L+-R-L+(*1) Below 1 Ω
      R-L-R-L-(*1) Below 1 Ω
      RSLD-SG2(*1) Below 1 Ω
      RSR+ - R-R+ (*2, *3) Below 1 Ω
      RSR- - R-R- (*2, *3) Below 1 Ω
      RSL+ - R-L+ (*2, *3) Below 1 Ω
      RSL- - R-L- (*2, *3) Below 1 Ω
      SLD - SG2 (*2, *3) Below 1 Ω

      HINT:

      • *1: w/ Navigation system
      • *2: w/o Navigation system (10 speaker)
      • *3: w/o Navigation system (6 speaker)
    3. In order to check for a short circuit, measure the resistance between the terminals, as shown in TESTER CONNECTION SPECIFIED CONDITION .

      Standard: 

    RADIO RECEIVER ASSY - MULTI-DISPLAY CONTROLLER SUB-ASSY (SHORT CIRCUIT)

    Tester connection Specified condition
    R-L- - Body ground 10 kΩ or higher
    R-L+ - Body ground 10 kΩ or higher
    R-R- - Body ground 10 kΩ or higher
    R-R+ - Body ground 10 kΩ or higher
    SG2 - Body ground 10 kΩ or higher
    Fig 1: Checking Harness And Connector (Radio Receiver Assy)
    G02630430Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Checking Harness And Connector (Multi-Display Controller Sub-Assy)
    G02630431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  2. INSPECT RADIO RECEIVER ASSY (R-R+, R-R-, R-L+, R-L-, RSR+, RSR-, RSL+, RSL-, GND) 
    1. In order to check for an open circuit, measure the resistance between the terminals according to the condition, as shown in (R-R+, R-R-, R-L+, R-L-, RSR+, RSR-, RSL+, RSL-, GND) (OPEN CIRCUIT) \ .

      Standard: 

      R-R+, R-R-, R-L+, R-L-, RSR+, RSR-, RSL+, RSL-, GND (OPEN CIRCUIT)

      Tester connection Condition Specified condition
      GND - Body ground Always Below 1 Ω
    2. Connect the radio receiver assy connector.
    3. Using an oscilloscope, check the signal waveform according to the conditions, as shown in R-R+, R-R-, R-L+, R-L-, RSR+, RSR-, RSL+, RSL-, GND (SIGNAL WAVEFORM)  .

      Standard: 

    Fig 3: Inspecting Radio Receiver Assy Connector Terminal
    G02630432Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    R-R+, R-R-, R-L+, R-L-, RSR+, RSR-, RSL+, RSL-, GND (SIGNAL WAVEFORM)

    Tester connection Condition Specified condition
    R-R+-GND(*1) While voice sound is being produced A waveform synchronized with sound is output
    R-R- - GND(*1) While voice sound is being produced A waveform synchronized with sound is output
    R-L+ - GND(*1) While voice sound is being produced A waveform synchronized with sound is output
    R-L- -GND(*1) While voice sound is being produced A waveform synchronized with sound is output
    RSR+ - GND (*2, *3) While voice sound is being produced A waveform synchronized with sound is output
    RSR- - GND (*2, *3) While voice sound is being produced A waveform synchronized with sound is output
    RSL+ - GND (*2, *3) While voice sound is being produced A waveform synchronized with sound is output
    RSL- - GND (*2, *3) While voice sound is being produced A waveform synchronized with sound is output

    HINT:

    • *1: w/ Navigation system
    • *2: w/o Navigation system (10 speaker)
    • *3: w/o Navigation system (6 speaker)
    1. NG: REPLACE RADIO RECEIVER ASSY 
    2. OK: GO TO NEXT STEP 
  3. CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY CONTROLLER SUB-ASSY - TELEVISION DISPLAY ASSY) 
    1. Disconnect the multi-display controller sub-assy and television display assy connectors.
    2. In order to check for an open circuit, measure the resistance between the terminals, as shown in MULTI-DISPLAY CONTROLLER SUB-ASSY - TELEVISION DISPLAY ASSY (OPEN CIRCUIT)  .

      Standard: 

      MULTI-DISPLAY CONTROLLER SUB-ASSY - TELEVISION DISPLAY ASSY (OPEN CIRCUIT)

      Tester connection Specified condition
      HPR+-HPR+ Below 1 Ω
      HPR- - HPR- Below 1 Ω
      HPL+ - HPL+ Below 1 Ω
      HPL- - HPL- Below 1 Ω
    3. In order to check for a short circuit, measure the resistance between the terminals, as shown in MULTI-DISPLAY CONTROLLER SUB-ASSY - TELEVISION DISPLAY ASSY (SHORT CIRCUIT)  .

      Standard: 

      MULTI-DISPLAY CONTROLLER SUB-ASSY - TELEVISION DISPLAY ASSY (SHORT CIRCUIT)

      Tester connection Specified condition
      HPR+ - Body ground 10 kΩ or higher
      HPR- - Body ground 10 kΩ or higher
      HPL+ - Body ground 10 kΩ or higher
      HPL- - Body ground 10 kΩ or higher
      SLD1 - Body ground 10 kΩ or higher
      Fig 4: Checking Harness And Connector (Multi-Display Controller Sub-Assy - Television Display Assy)
      G02630433Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP 
  4. INSPECT MULTI-DISPLAY CONTROLLER SUB-ASSY (HPR+, HPR-, HPL+, HPL-, SLD1) 
    1. Connect the multi-display controller sub-assy connector.
    2. In order to check for an open circuit, measure the resistance between the terminals according to the condition, as shown in HPR+, HPR-, HPL+, HPL-, SLD1 (OPEN CIRCUIT)  .

      Standard: 

      HPR+, HPR-, HPL+, HPL-, SLD1 (OPEN CIRCUIT)

      Tester connection Condition Specified condition
      SLD1 - Body ground Always Below 1 Ω
    3. Using an oscilloscope, check the signal waveform according to the conditions, as shown in HPR+, HPR-, HPL+, HPL-, SLD1 (SIGNAL WAVEFORM)  .

      Standard: 

    HPR+, HPR-, HPL+, HPL-, SLD1 (SIGNAL WAVEFORM)

    Tester connection Condition Specified condition
    HPR+ - SLD1 While voice sound is being produced A waveform synchronized with sound is output
    HPR- - SLD1 While voice sound is being produced A waveform synchronized with sound is output
    HPL+ - SLD1 While voice sound is being produced A waveform synchronized with sound is output
    HPL- - SLD1 While voice sound is being produced A waveform synchronized with sound is output
    Fig 5: Inspecting Multi-Display Controller Sub-Assy (HPR+, HPR-, HPL+, HPL-, SLD1)
    G02630434Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE MULTI-DISPLAY CONTROLLER SUB-ASSY 
    2. OK: REPLACE TELEVISION DISPLAY ASSY 
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