LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2012 >> LS 460 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Rear Seat Entertainment System (Diagnostic Codes & Symptom Tests) >> Rear Seat Entertainment System >> Symptom Tests >> Sound Signal Circuit between Headphone Terminal and Television Display >> Procedure

Sound Signal Circuit between Headphone Terminal and Television Display: Procedure

  1. CHECK REAR SEAT ENTERTAINMENT 
    1. Check the rear seat entertainment.
      RESULT

      Result Proceed to
      except 5-Passenger with Ottoman A
      for 5-Passenger with Ottoman B

    B → See step   5 

    A: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - REAR SEAT CONSOLE BOX) 
    1. Disconnect the R59 television display assembly connector.
    2. Disconnect the R16 rear seat console box assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R59-15 (HP1L) - R16-2 (HP1L) Always Below 1 Ω
      R59-17 (HP1R) - R16-1 (HP1R) Always Below 1 Ω
      R59-16 (SLD1) - R16-3 (SGN1) Always Below 1 Ω
      R59-18 (HP2L) - R16-16 (HP2L) Always Below 1 Ω
      R59-20 (HP2R) - R16-15 (HP2R) Always Below 1 Ω
      R59-19 (SLD2) - R16-17 (SGN2) Always Below 1 Ω
      R59-15 (HP1L) - Body ground Always 10 kΩ or higher
      R59-17 (HP1R) - Body ground Always 10 kΩ or higher
      R59-16 (SLD1) - Body ground Always 10 kΩ or higher
      R59-18 (HP2L) - Body ground Always 10 kΩ or higher
      R59-20 (HP2R) - Body ground Always 10 kΩ or higher
      R59-19 (SLD2) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  3. INSPECT REAR SEAT CONSOLE BOX ASSEMBLY 
    1. Remove the rear seat console box assembly. Refer to REMOVAL .
      Fig 1: Identifying Rear Seat Console Box Assembly, Connectors & Terminals
      GTY260259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      R16-1 (HP1R) - B-1 (HP1R) Always Below 1 Ω
      R16-2 (HP1L) - B-2 (HP1L) Always Below 1 Ω
      R16-3 (SGN1) - B-3 (SGN1) Always Below 1 Ω
      R16-15 (HP2R) - C-1 (HP2R) Always Below 1 Ω
      R16-16 (HP2L) - C-2 (HP2L) Always Below 1 Ω
      R16-17 (SGN2) - C-3 (SGN2) Always Below 1 Ω
      R16-1 (HP1R) - Body ground Always 10 kΩ or higher
      R16-2 (HP1L) - Body ground Always 10 kΩ or higher
      R16-3 (SGN1) - Body ground Always 10 kΩ or higher
      R16-15 (HP2R) - Body ground Always 10 kΩ or higher
      R16-16 (HP2L) - Body ground Always 10 kΩ or higher
      R16-17 (SGN2) - Body ground Always 10 kΩ or higher

    NG → See step   9 

    OK: Go to next step 

  4. CHECK TELEVISION DISPLAY ASSEMBLY 
    1. Using an oscilloscope, check the waveform between each terminal and the body ground according to the conditions as shown in the table below.
      Fig 2: Checking Television Display Assembly At R59 Connector
      GTY351122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      Tester Connection Condition Specified Condition
      R59-17 (HP1R) - Body ground RSE playing Waveform synchronized with sound is output
      R59-15 (HP1L) - Body ground
      R59-20 (HP2R) - Body ground
      R59-18 (HP2L) - Body ground
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Television Display Assembly)

    NG → See step   8 

    OK → See step   7 

  5. CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY - HEADPHONE TERMINAL) 
    1. for LH:
      1. Disconnect the R62 television display assembly connector.
      2. Disconnect the r7 headphone terminal connector.
      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        R62-17 (HP1R) - r7-1 (HP1R) Always Below 1 Ω
        R62-15 (HP1L) - r7-2 (HP1L) Always Below 1 Ω
        R62-16 (SLD1) - r7-3 (SGN1) Always Below 1 Ω
        R62-17 (HP1R) - Body ground Always 10 kΩ or higher
        R62-15 (HP1L) - Body ground Always 10 kΩ or higher
        R62-16 (SLD1) - Body ground Always 10 kΩ or higher
    2. for RH:
      1. Disconnect the R62 television display assembly connector.
      2. Disconnect the R8 headphone terminal RH connector.
      3. Measure the resistance according to the value(s) in the table below.

        Standard Resistance

        Tester Connection Condition Specified Condition
        R62-20 (HP2R) - R8-5 (HP2R) Always Below 1 Ω
        R62-18 (HP2L) - R8-6 (HP2L) Always Below 1 Ω
        R62-19 (SLD2) - R8-7 (SGN2) Always Below 1 Ω
        R62-20 (HP2R) - Body ground Always 10 kΩ or higher
        R62-18 (HP2L) - Body ground Always 10 kΩ or higher
        R62-19 (SLD2) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  6. CHECK TELEVISION DISPLAY ASSEMBLY 
    1. Using an oscilloscope, check the waveform between each terminal and the body ground according to the conditions as shown in the table below.
      Fig 3: Checking Television Display Assembly At R62 Connector
      GTY351125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK

      Tester Connection Condition Specified Condition
      R62-20 (HP2R) - Body ground RSE playing Waveform synchronized with sound is output
      R62-18 (HP2L) - Body ground
      R62-17 (HP1R) - Body ground
      R62-15 (HP1L) - Body ground
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Television Display Assembly)

    NG → See step   10 

    OK → See step   7 

  7. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE 
  8. REPLACE TELEVISION DISPLAY ASSEMBLY. Refer to  REMOVAL 
  9. REPLACE REAR SEAT CONSOLE BOX ASSEMBLY. Refer to  REMOVAL 
  10. REPLACE TELEVISION DISPLAY ASSEMBLY. Refer to  REMOVAL 
scientia non olet · About LEMON Manuals