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Microphone Circuit between Microphone and Radio Receiver [10/2015 - ]: Procedure

  1. CHECK MICROPHONE (OPERATION CHECK) 
    1. Enter the "Microphone Check" screen. Refer to Check Microphone in Operation Check (Refer to OPERATION CHECK [10/2015 - ] ).
      GTY451926Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    B 

    See step  2

  2. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Manual (SOS) Switch A
      w/o Manual (SOS) Switch (w/o Sliding Roof System) B
      w/o Manual (SOS) Switch (w/ Sliding Roof System) C

    Result: 

    B 

    See step  10

    Result: 

    C 

    See step  15

    Result: 

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY)) 
    1. Disconnect the E11 DCM (telematics transceiver) connector.
    2. Disconnect the N2 inner rear view mirror assembly (amplifier microphone assembly) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E11-33 (MCVD) - N2-9 (ACC) Always Below 1 Ω
      E11-34 (MCI+) - N2-11 (MIC+) Always Below 1 Ω
      E11-35 (MCI-) - N2-12 (MIC-) Always Below 1 Ω
      E11-33 (MCVD) - Body ground Always 10 kΩ or higher
      E11-34 (MCI+) - Body ground Always 10 kΩ or higher
      E11-35 (MCI-) - Body ground Always 10 kΩ or higher
      E11-32 (SGND) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the E5 radio and display receiver assembly connector.
    2. Disconnect the E11 DCM (telematics transceiver) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E5-5 (MIN+) - E11-18 (MCO+) Always Below 1 Ω
      E5-19 (MIN-) - E11-19 (MCO-) Always Below 1 Ω
      E5-5 (MIN+) - Body ground Always 10 kΩ or higher
      E5-19 (MIN-) - Body ground Always 10 kΩ or higher
      E5-18 (SGND) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY)) 
    1. Disconnect the E5 radio and display receiver assembly connector.
    2. Disconnect the N2 inner rear view mirror assembly (amplifier microphone assembly) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E5-6 (SNS2) - N2-10 (SGND) Always Below 1 Ω
      E5-6 (SNS2) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Disconnect the E11 DCM (telematics transceiver) connector.
    2. Reconnect the E5 radio and display receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.
      GTY555791Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      E5-18 (SGND) - Body ground Always Below 1 Ω
      E5-19 (MIN-) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Radio and Display Receiver Assembly)

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    OK 

    See step  7

  7. INSPECT DCM (TELEMATICS TRANSCEIVER) 
    1. Reconnect the E11 DCM (telematics transceiver) connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY545412Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Specified Condition
      E11-33 (MCVD) - Body ground Power switch on (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
      E11-35 (MCI-) - Body ground Always Below 1 Ω
      E11-32 (SGND) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (DCM (Telematics Transceiver))

    Result: 

    NG 

    REPLACE DCM (TELEMATICS TRANSCEIVER) 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    OK 

    See step  8

  8. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 
    1. Remove the inner rear view mirror assembly (amplifier microphone assembly) (Refer to REMOVAL [10/2015 - ] ).
    2. Measure the resistance according to the value(s) in the table below.
      GTY601112Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      10 (SGND) - 12 (MIC-) Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly)

    Result: 

    NG 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 

    (Refer to REMOVAL [10/2015 - ] )

    Result: 

    OK 

    See step  9

  9. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 
    1. Reconnect the E5 radio and display receiver assembly connector.
    2. Reconnect the E11 DCM (telematics transceiver) connector.
    3. Reconnect the N2 inner rear view mirror assembly (amplifier microphone assembly) connector.
    4. Turn the power switch on (ACC).
    5. Connect an oscilloscope to terminals 11 (MIC+) and 12 (MIC-) of the N2 inner rear view mirror assembly (amplifier microphone assembly) connector.
      GTY607549Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Check the waveform of the inner rear view mirror assembly (amplifier microphone assembly) using the oscilloscope.

      Result

      Result Proceed to
      A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is output A
      A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is not output B
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly))

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [10/2015 - ] )

    Result: 

    B 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 

    (Refer to REMOVAL [10/2015 - ] )

  10. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) 
    1. Disconnect the E5 radio and display receiver assembly connector.
    2. Disconnect the N6 roof console box assembly (telephone microphone assembly) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E5-4 (MACC) - N6-14 (MACC) Always Below 1 Ω
      E5-5 (MIN+) - N6-13 (MCO+) Always Below 1 Ω
      E5-19 (MIN-) - N6-12 (MCO-) Always Below 1 Ω
      E5-6 (SNS2) - N6-15 (SNS2) Always Below 1 Ω
      E5-4 (MACC) - Body ground Always 10 kΩ or higher
      E5-5 (MIN+) - Body ground Always 10 kΩ or higher
      E5-19 (MIN-) - Body ground Always 10 kΩ or higher
      E5-18 (SGND) - Body ground Always 10 kΩ or higher
      E5-6 (SNS2) - Body ground Always 10 kΩ or higher

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  11

  11. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Reconnect the E5 radio and display receiver assembly connector.
    2. Reconnect the N6 roof console box assembly (telephone microphone assembly) connector.
    3. Measure the voltage according to the value(s) in the table below.
      GTY577462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Specified Condition
      E5-4 (MACC) - Body ground Power switch on (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
      E5-18 (SGND) - Body ground Always Below 1 Ω
      E5-19 (MIN-) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Radio and Display Receiver Assembly)

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    OK 

    See step  12

  12. INSPECT ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) 
    1. Remove the roof console box assembly (telephone microphone assembly) (Refer to REMOVAL [10/2014 - ] ).
    2. Measure the resistance according to the value(s) in the table below.
      GTY596528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      15 (SNS2) - 12 (MCO-) Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component without harness connected
      (Roof Console Box Assembly (Telephone Microphone Assembly))

    Result: 

    NG 

    See step  14

    Result: 

    OK 

    See step  13

  13. INSPECT ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) 
    1. Reconnect the E5 radio and display receiver assembly connector.
    2. Reconnect the N6 roof console box assembly (telephone microphone assembly) connector.
    3. Turn the power switch on (ACC).
    4. Connect an oscilloscope to terminals 13 (MCO+) and 12 (MCO-) of the N6 roof console box assembly (telephone microphone assembly) connector.
      GTY554301Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Check the waveform of the roof console box assembly (telephone microphone assembly) using the oscilloscope.

      Result

      Result Proceed to
      A waveform synchronized with the voice input to the roof console box assembly (telephone microphone assembly) is output A
      A waveform synchronized with the voice input to the roof console box assembly (telephone microphone assembly) is not output B
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Roof Console Box Assembly (Telephone Microphone Assembly))

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [10/2015 - ] )

    Result: 

    B 

    See step  14

  14. REPLACE TELEPHONE MICROPHONE ASSEMBLY 
    1. Replace the telephone microphone assembly with a new or known good one (Refer to REMOVAL [10/2015 - ] ).
    2. Check if the same malfunction recurs.

      Result

      Result Proceed to
      Malfunction does not recur
      (returns to normal)      		 A
      Malfunction recurs B

    Result: 

    A 

    END 

    Result: 

    B 

    REPLACE ROOF CONSOLE BOX ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

  15. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY)) 
    1. Disconnect the E5 radio and display receiver assembly connector.
    2. Disconnect the N2*1 or N12*2 inner rear view mirror assembly (amplifier microphone assembly) connector.
      • *1: w/o Toyota Safety Sense P
      • *2: w/ Toyota Safety Sense P
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E5-4 (MACC) - N2-9 (ACC)*1 Always Below 1 Ω
      E5-4 (MACC) - N12-7 (ACC)*2 Always Below 1 Ω
      E5-5 (MIN+) - N2-11 (MIC+)*1 Always Below 1 Ω
      E5-5 (MIN+) - N12-9 (MIC+)*2 Always Below 1 Ω
      E5-19 (MIN-) - N2-12 (MIC-)*1 Always Below 1 Ω
      E5-19 (MIN-) - N12-10 (MIC-)*2 Always Below 1 Ω
      E5-6 (SNS2) - N2-10 (SGND)*1 Always Below 1 Ω
      E5-6 (SNS2) - N12-8 (SGND)*2 Always Below 1 Ω
      E5-4 (MACC) - Body ground Always 10 kΩ or higher
      E5-5 (MIN+) - Body ground Always 10 kΩ or higher
      E5-19 (MIN-) - Body ground Always 10 kΩ or higher
      E5-18 (SGND) - Body ground Always 10 kΩ or higher
      E5-6 (SNS2) - Body ground Always 10 kΩ or higher
      • *1: w/o Toyota Safety Sense P
      • *2: w/ Toyota Safety Sense P

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  16

  16. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Reconnect the E5 radio and display receiver assembly connector.
    2. Reconnect the N2 inner rear view mirror assembly (amplifier microphone assembly) connector.
    3. Measure the voltage according to the value(s) in the table below.
      GTY577460Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Condition Specified Condition
      E5-4 (MACC) - Body ground Power switch on (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
      E5-18 (SGND) - Body ground Always Below 1 Ω
      E5-19 (MIN-) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Radio and Display Receiver Assembly)

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    (Refer to REMOVAL [10/2014 - ] )

    Result: 

    OK 

    See step  17

  17. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 
    1. Remove the inner rear view mirror assembly (amplifier microphone assembly) (Refer to REMOVAL [10/2015 - ] ).
      GTY601197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/o Toyota Safety Sense P
      *a Component without harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly)
      GTY551592Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *B w/ Toyota Safety Sense P
      *a Component without harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      N2-10 (SGND) - N2-12 (MIC-)*1 Always Below 1 Ω
      N12-8 (SGND) - N12-10 (MIC-)*2    
      • *1: w/o Toyota Safety Sense P
      • *2: w/ Toyota Safety Sense P

    Result: 

    NG 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 

    (Refer to REMOVAL [10/2015 - ] )

    Result: 

    OK 

    See step  18

  18. INSPECT INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 
    1. Reconnect the E5 radio and display receiver assembly connector.
    2. Reconnect the N2*1 or N12*2 inner rear view mirror assembly (amplifier microphone assembly) connector.
      • *1: w/o Toyota Safety Sense P
      • *2: w/ Toyota Safety Sense P
    3. Turn the power switch on (ACC).
    4. Connect an oscilloscope to terminals N2-11 (MIC+) and N2-12 (MIC-)*1, N12-9 (MIC+) and N12-10 (MIC-)*2 of the inner rear view mirror assembly (amplifier microphone assembly) connector.
      GTY568009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/o Toyota Safety Sense P
      *a Component with harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly))
      GTY541111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *B w/ Toyota Safety Sense P
      *a Component with harness connected
      (Inner Rear View Mirror Assembly (Amplifier Microphone Assembly))
      • *1: w/o Toyota Safety Sense P
      • *2: w/ Toyota Safety Sense P
    5. Check the waveform of the inner rear view mirror assembly (amplifier microphone assembly) using the oscilloscope.

      Result

      Result Proceed to
      A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is output A
      A waveform synchronized with the voice input to the inner rear view mirror assembly (amplifier microphone assembly) is not output B

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE 

    (Refer to PROBLEM SYMPTOMS TABLE [10/2015 - ] )

    Result: 

    B 

    REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AMPLIFIER MICROPHONE ASSEMBLY) 

    (Refer to REMOVAL [10/2015 - ] )

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