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Microphone Circuit between Microphone and Radio Receiver [03/2017 - 06/2017]: Procedure

  1. CHECK MICROPHONE (OPERATION CHECK) 
    1. Enter the "Microphone Check" screen. Refer to Check Microphone in Operation Check.
      GTY434237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Refer to OPERATION CHECK [03/2017 - 06/2017]

    2. When a voice is input into the microphone, check that the microphone input level meter changes according to the input voice.

      OK

      Check result is normal.

      Result

      Result Proceed to
      NG (w/ Sliding Roof and w/o Manual (SOS) Switch) A
      NG (w/ Sliding Roof and w/ Manual (SOS) Switch) B
      NG (w/o Sliding Roof) C
      OK D

    Result: 

    B 

    See step  8

    Result: 

    C 

    See step  18

    Result: 

    D 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    A 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ROOF CONSOLE BOX SUB-ASSEMBLY) 
    1. Disconnect the K2 radio and display receiver assembly connector.
    2. Disconnect the V14 roof console box sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-25 (SNS2) - V14-6 (SNS2) Always Below 1 Ω
      K2-23 (MACC) - V14-9 (MACC) Always Below 1 Ω
      K2-21 (MIN+) - V14-8 (MCO+) Always Below 1 Ω
      K2-22 (MIN-) - V14-7 (MCO-) Always Below 1 Ω
      K2-25 (SNS2) or V14-6 (SNS2) - Body ground Always 10 kΩ or higher
      K2-23 (MACC) or V14-9 (MACC) - Body ground Always 10 kΩ or higher
      K2-21 (MIN+) or V14-8 (MCO+) - Body ground Always 10 kΩ or higher
      K2-22 (MIN-) or V14-7 (MCO-) - Body ground Always 10 kΩ or higher
      K2-24 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V14 roof console box sub-assembly connector.
    3. Measure the voltage according to the value(s) in the table below.
      GTY744940Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      K2-23 (MACC) - Body ground Ignition switch ACC 4 to 6 V
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-24 (SGND) - Body ground Always Below 1 Ω
      K2-22 (MIN-) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    OK 

    See step  4

  4. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Connect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 (SNS2) - 7 (MCO-) Always Below 1 Ω
      GTY753732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  7

    Result: 

    OK 

    See step  5

  5. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (OUTPUT TO RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V14 roof console box sub-assembly connector.
    3. Turn the ignition switch to ACC.
    4. Connect an oscilloscope to terminals 8 (MCO+) and 7 (MCO-) of the V14 roof console box sub-assembly connector.
      GTY743606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Roof Console Box Sub-assembly)
    5. Check the signal waveform according to the condition(s) in the table below.
      Item Condition
      Measurement terminal V14-8 (MCO+) - V14-7 (MCO-)
      Tool setting 50 mV/DIV., 500 ms/DIV.
      Vehicle condition
      1. Turn the ignition switch to ACC.
      2. Sound is input to the roof console box sub-assembly when the user is closer than 125 mm from the roof console box sub-assembly sound holes.

      OK

      The waveform is similar to that shown in the illustration.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 06/2017] 

    Result: 

    NG 

    See step  6

  6. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V14-8 (MCO+) - MI2-3 Always Below 1 Ω
      V14-7 (MCO-) - MI2-2 Always Below 1 Ω
      V14-8 (MCO+) or MI2-3 - V14-15 (GND) Always Below 1 Ω
      V14-7 (MCO-) or MI2-2 - V14-15 (GND) Always 10 kΩ or higher
      GTY748005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

  7. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V14-6 (SNS2) - MI2-1 Always Below 1 Ω
      V14-7 (MCO-) - MI2-2 Always Below 1 Ω
      V14-6 (SNS2) or MI2-1 - V14-15 (GND) Always 10 kΩ or higher
      V14-7 (MCO-) or MI2-2 - V14-15 (GND) Always 10 kΩ or higher
      GTY748006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

  8. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ROOF CONSOLE BOX SUB-ASSEMBLY) 
    1. Disconnect the K2 radio and display receiver assembly connector.
    2. Disconnect the V14 roof console box sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-25 (SNS2) - V14-6 (SNS2) Always Below 1 Ω
      K2-25 (SNS2) or V14-6 (SNS2) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the K2 radio and display receiver assembly connector.
    2. Disconnect the K12 DCM (telematics transceiver) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-21 (MIN+) - K12-18 (MCO+) Always Below 1 Ω
      K2-22 (MIN-) - K12-19 (MCO-) Always Below 1 Ω
      K2-21 (MIN+) or K12-18 (MCO+) - Body ground Always 10 kΩ or higher
      K2-22 (MIN-) or K12-19 (MCO-) - Body ground Always 10 kΩ or higher
      K2-24 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - ROOF CONSOLE BOX SUB-ASSEMBLY) 
    1. Disconnect the K12 DCM (telematics transceiver) connector.
    2. Disconnect the V14 roof console box sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K12-33 (MCVD) - V14-9 (MACC) Always Below 1 Ω
      K12-34 (MCI+) - V14-8 (MCO+) Always Below 1 Ω
      K12-35 (MCI-) - V14-7 (MCO-) Always Below 1 Ω
      K12-33 (MCVD) or V14-9 (MACC) - Body ground Always 10 kΩ or higher
      K12-34 (MCI+) or V14-8 (MCO+) - Body ground Always 10 kΩ or higher
      K12-35 (MCI-) or V14-7 (MCO-) - Body ground Always 10 kΩ or higher
      K12-32 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  11

  11. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Disconnect the K12 DCM (telematics transceiver) connector.
    2. Connect the K2 radio and display receiver assembly connector.
      GTY744942Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-24 (SGND) - Body ground Always Below 1 Ω
      K2-22 (MIN-) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    OK 

    See step  12

  12. INSPECT DCM (TELEMATICS TRANSCEIVER) 
    1. Connect the K12 DCM (telematics transceiver) connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY749547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (DCM (Telematics Transceiver))

      Standard Voltage

      Tester Connection Condition Specified Condition
      K12-33 (MCVD) - Body ground Ignition switch ACC 4 to 6 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K12-35 (MCI-) - Body ground Always Below 1 Ω
      K12-32 (SGND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [03/2017 - 09/2019] 

    Result: 

    OK 

    See step  13

  13. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Connect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      6 (SNS2) - 7 (MCO-) Always Below 1 Ω
      GTY753732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  17

    Result: 

    OK 

    See step  14

  14. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (OUTPUT TO DCM (TELEMATICS TRANSCEIVER)) 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V14 roof console box sub-assembly connector.
    3. Connect the K12 DCM (telematics transceiver) connector.
    4. Turn the ignition switch to ACC.
    5. Connect an oscilloscope to terminals 8 (MCO+) and 7 (MCO-) of the V14 roof console box sub-assembly connector.
      GTY743606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Roof Console Box Sub-assembly)
    6. Check the signal waveform according to the condition(s) in the table below.
      Item Condition
      Measurement terminal V14-8 (MCO+) - V14-7 (MCO-)
      Tool setting 50 mV/DIV., 500 ms/DIV.
      Vehicle condition
      1. Turn the ignition switch to ACC.
      2. Sound is input to the roof console box sub-assembly when the user is closer than 125 mm from the roof console box sub-assembly sound holes.

      OK

      The waveform is similar to that shown in the illustration.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  16

    Result: 

    OK 

    See step  15

  15. INSPECT DCM (TELEMATICS TRANSCEIVER) (OUTPUT TO RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V14 roof console box sub-assembly connector.
    3. Connect the K12 DCM (telematics transceiver) connector.
    4. Turn the ignition switch to ACC.
    5. Connect an oscilloscope to terminals 18 (MCO+) and 19 (MCO-) of the K12 DCM (telematics transceiver) connector.
      GTY768822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      DCM (Telematics transceiver)
    6. Check the signal waveform according to the condition(s) in the table below.
      Item Condition
      Measurement terminal K12-18 (MCO+) - K12-19 (MCO-)
      Tool setting 50 mV/DIV., 500 ms/DIV.
      Vehicle condition
      1. Turn the ignition switch to ACC.
      2. Sound is input to the roof console box sub-assembly when the user is closer than 125 mm from the roof console box sub-assembly sound holes.

      OK

      The waveform is similar to that shown in the illustration.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [03/2017 - 09/2019] 

  16. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V14-8 (MCO+) - MI2-3 Always Below 1 Ω
      V14-7 (MCO-) - MI2-2 Always Below 1 Ω
      V14-8 (MCO+) or MI2-3 - V14-15 (GND) Always Below 1 Ω
      V14-7 (MCO-) or MI2-2 - V14-15 (GND) Always 10 kΩ or higher
      GTY748005Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

  17. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V14-6 (SNS2) - MI2-1 Always Below 1 Ω
      V14-7 (MCO-) - MI2-2 Always Below 1 Ω
      V14-6 (SNS2) or MI2-1 - V14-15 (GND) Always 10 kΩ or higher
      V14-7 (MCO-) or MI2-2 - V14-15 (GND) Always 10 kΩ or higher
      GTY748006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

  18. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ROOF CONSOLE BOX SUB-ASSEMBLY) 
    1. Disconnect the K2 radio and display receiver assembly connector.
    2. Disconnect the V12 roof console box sub-assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-25 (SNS2) - V12-12 (SNS2) Always Below 1 Ω
      K2-23 (MACC) - V12-9 (MACC) Always Below 1 Ω
      K2-21 (MIN+) - V12-10 (MCO+) Always Below 1 Ω
      K2-22 (MIN-) - V12-11 (MCO-) Always Below 1 Ω
      K2-25 (SNS2) or V12-12 (SNS2) - Body ground Always 10 kΩ or higher
      K2-23 (MACC) or V12-9 (MACC) - Body ground Always 10 kΩ or higher
      K2-21 (MIN+) or V12-10 (MCO+) - Body ground Always 10 kΩ or higher
      K2-22 (MIN-) or V12-11 (MCO-) - Body ground Always 10 kΩ or higher
      K2-24 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  19

  19. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V12 roof console box sub-assembly connector.
    3. Measure the voltage according to the value(s) in the table below.
      GTY744941Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Radio and Display Receiver Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      K2-23 (MACC) - Body ground Ignition switch ACC 4 to 6 V
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-24 (SGND) - Body ground Always Below 1 Ω
      K2-22 (MIN-) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    OK 

    See step  20

  20. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Connect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      12 (SNS2) - 11 (MCO-) Always Below 1 Ω
      GTY749157Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  23

    Result: 

    OK 

    See step  21

  21. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY (OUTPUT TO RADIO AND DISPLAY RECEIVER ASSEMBLY) 
    1. Connect the K2 radio and display receiver assembly connector.
    2. Connect the V12 roof console box sub-assembly connector.
    3. Turn the ignition switch to ACC.
    4. Connect an oscilloscope to terminals 10 (MCO+) and 11 (MCO-) of the V12 roof console box sub-assembly connector.
      GTY756311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Roof Console Box Sub-assembly)
    5. Check the signal waveform according to the condition(s) in the table below.
      Item Condition
      Measurement terminal V12-10 (MCO+) - V12-11 (MCO-)
      Tool setting 50 mV/DIV., 500 ms/DIV.
      Vehicle condition
      1. Turn the ignition switch to ACC.
      2. Sound is input to the roof console box sub-assembly when the user is closer than 125 mm from the roof console box sub-assembly sound holes.

      OK

      The waveform is similar to that shown in the illustration.

      HINT: 

      The oscilloscope waveform shown in the illustration is an example for reference only.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 06/2017] 

    Result: 

    NG 

    See step  22

  22. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V12-10 (MCO+) - MI2-3 Always Below 1 Ω
      V12-11 (MCO-) - MI2-2 Always Below 1 Ω
      V12-10 (MCO+) or MI2-3 - V12-4 (GND) Always Below 1 Ω
      V12-11 (MCO-) or MI2-2 - V12-4 (GND) Always 10 kΩ or higher
      GTY770582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

  23. INSPECT ROOF CONSOLE BOX SUB-ASSEMBLY 
    1. Remove the roof console box sub-assembly.

      Refer to REMOVAL [03/2017 - 06/2017]

    2. Disconnect the MI2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      V12-12 (SNS2) - MI2-1 Always Below 1 Ω
      V12-11 (MCO-) - MI2-2 Always Below 1 Ω
      V12-12 (SNS2) or MI2-1 - V12-4 (GND) Always 10 kΩ or higher
      V12-11 (MCO-) or MI2-2 - V12-4 (GND) Always 10 kΩ or higher
      GTY749911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Roof Console Box Sub-assembly (No. 1 Roof Wire Side))
      *b Component without harness connected
      (Roof Console Box Sub-assembly (Telephone Microphone Assembly Side))

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

    Result: 

    NG 

    REPLACE ROOF CONSOLE BOX SUB-ASSEMBLY. Refer to  REMOVAL [03/2017 - 06/2017] 

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