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Microphone Circuit between Microphone and Navigation Receiver Assembly [11/2015 - ]: 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 [11/2015 - 11/2017] , or refer to OPERATION CHECK [11/2017 - 08/2019] , or refer to OPERATION CHECK [08/2019 - ]

    2. When a voice is input into the microphone, check that the microphone input level meter changes according to the input voice.
    3. Push the recording switch and perform voice recording.

      HINT: 

      • Select the recording switch with the blower motor of the air conditioning system stopped. If an outlet of the air conditioning system is facing the microphone, noise may be recorded.
      • Voice can be recorded for up to 5 seconds.
    4. Check that the recording indicator remains on while recording and that the recorded voice is played normally without noise or distortion.

      OK

      All check results are normal.

      Result

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

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2015 - 11/2017]  , or refer to  PROBLEM SYMPTOMS TABLE [11/2017 - 08/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ] 

    Result: 

    C 

    See step  3

    Result: 

    D 

    See step  5

    Result: 

    E 

    See step  7

    Result: 

    B 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY) 
    1. Disconnect the F92 navigation receiver assembly connector.
    2. Disconnect the O2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F92-4 (MACC) - O2-1 (MACC) Always Below 1 Ω
      F92-5 (MIN+) - O2-2 (MCO+) Always Below 1 Ω
      F92-19 (MIN-) - O2-4 (MCO-) Always Below 1 Ω
      F92-6 (SNS2) - O2-3 (SNS2) Always Below 1 Ω
      F92-4 (MACC) or O2-1 (MACC) - Body ground Always 10 kΩ or higher
      F92-5 (MIN+) or O2-2 (MCO+) - Body ground Always 10 kΩ or higher
      F92-19 (MIN-) or O2-4 (MCO-) - Body ground Always 10 kΩ or higher
      F92-18 (SGND) - Body ground Always 10 kΩ or higher
      F92-6 (SNS2) or O2-3 (SNS2) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  4

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  3. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) 
    1. Disconnect the F92 navigation receiver assembly connector.
    2. Disconnect the O4 map light 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
      F92-4 (MACC) - O4-17 (MACC) Always Below 1 Ω
      F92-5 (MIN+) - O4-16 (MCO+) Always Below 1 Ω
      F92-19 (MIN-) - O4-15 (MCO-) Always Below 1 Ω
      F92-6 (SNS2) - O4-14 (SNS2) Always Below 1 Ω
      F92-4 (MACC) or O4-17 (MACC) - Body ground Always 10 kΩ or higher
      F92-5 (MIN+) or O4-16 (MCO+) - Body ground Always 10 kΩ or higher
      F92-19 (MIN-) or O4-15 (MCO-) - Body ground Always 10 kΩ or higher
      F92-18 (SGND) - Body ground Always 10 kΩ or higher
      F92-6 (SNS2) or O4-14 (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  4

  4. INSPECT NAVIGATION RECEIVER ASSEMBLY 
    1. Measure the voltage according to the value(s) in the table below.
      GTY594110Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Navigation Receiver Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      F92-4 (MACC) - Body ground Power switch on (ACC) 4 to 6 V
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F92-18 (SGND) - Body ground Always Below 1 Ω
      F92-19 (MIN-) - Body ground Always Below 1 Ω

      Result

      Result Proceed to
      OK (w/o Sliding Roof) A
      OK (w/ Sliding Roof) B
      NG C

    Result: 

    A 

    See step  12

    Result: 

    B 

    See step  14

    Result: 

    C 

    REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2015 - 11/2017]  , or refer to  REMOVAL [11/2017 - 12/2018]  , or refer to  REMOVAL [12/2018 - 08/2019]  , or refer to  REMOVAL [08/2019 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

  5. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY) 
    1. Disconnect the F92 navigation receiver assembly connector.
    2. Disconnect the O2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F92-6 (SNS2) - O2-3 (SNS2) Always Below 1 Ω
      F92-6 (SNS2) or O2-3 (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  6

  6. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - TELEPHONE MICROPHONE ASSEMBLY) 
    1. Disconnect the F36 DCM (telematics transceiver) connector.
    2. Disconnect the O2 telephone microphone assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F36-33 (MCVD) - O2-1 (MACC) Always Below 1 Ω
      F36-34 (MCI+) - O2-2 (MCO+) Always Below 1 Ω
      F36-35 (MCI-) - O2-4 (MCO-) Always Below 1 Ω
      F36-33 (MCVD) or O2-1 (MACC) - Body ground Always 10 kΩ or higher
      F36-34 (MCI+) or O2-2 (MCO+) - Body ground Always 10 kΩ or higher
      F36-35 (MCI-) or O2-4 (MCO-) - Body ground Always 10 kΩ or higher
      F36-32 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    See step  9

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  7. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) 
    1. Disconnect the F92 navigation receiver assembly connector.
    2. Disconnect the O4 map light 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
      F92-6 (SNS2) - O4-14 (SNS2) Always Below 1 Ω
      F92-6 (SNS2) or O4-14 (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  8

  8. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) 
    1. Disconnect the F36 DCM (telematics transceiver) connector.
    2. Disconnect the O4 map light 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
      F36-33 (MCVD) - O4-17 (MACC) Always Below 1 Ω
      F36-34 (MCI+) - O4-16 (MCO+) Always Below 1 Ω
      F36-35 (MCI-) - O4-15 (MCO-) Always Below 1 Ω
      F36-33 (MCVD) or O4-17 (MACC) - Body ground Always 10 kΩ or higher
      F36-34 (MCI+) or O4-16 (MCO+) - Body ground Always 10 kΩ or higher
      F36-35 (MCI-) or O4-15 (MCO-) - Body ground Always 10 kΩ or higher
      F36-32 (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  9

  9. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - DCM (TELEMATICS TRANSCEIVER)) 
    1. Disconnect the F92 navigation receiver assembly connector.
    2. Disconnect the F36 DCM (telematics transceiver) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      F92-5 (MIN+) - F36-18 (MCO+) Always Below 1 Ω
      F92-19 (MIN-) - F36-19 (MCO-) Always Below 1 Ω
      F92-5 (MIN+) or F36-18 (MCO+) - Body ground Always 10 kΩ or higher
      F92-19 (MIN-) or F36-19 (MCO-) - Body ground Always 10 kΩ or higher
      F92-18 (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. INSPECT NAVIGATION RECEIVER ASSEMBLY 
    1. Disconnect the F36 DCM (telematics transceiver) connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY609943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Navigation Receiver Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      F92-18 (SGND) - Body ground Always Below 1 Ω
      F92-19 (MIN-) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2015 - 11/2017]  , or refer to  REMOVAL [11/2017 - 12/2018]  , or refer to  REMOVAL [12/2018 - 08/2019]  , or refer to  REMOVAL [08/2019 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

    Result: 

    OK 

    See step  11

  11. INSPECT DCM (TELEMATICS TRANSCEIVER) 
    1. Reconnect the F36 DCM (telematics transceiver) connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY580822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (DCM (Telematics Transceiver))

      Standard Voltage

      Tester Connection Condition Specified Condition
      F36-33 (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
      F36-32 (SGND) - Body ground Always Below 1 Ω
      F36-35 (MCI-) - Body ground Always Below 1 Ω

      Result

      Result Proceed to
      OK (w/o Sliding Roof) A
      OK (w/ Sliding Roof) B
      NG C

    Result: 

    B 

    See step  14

    Result: 

    C 

    REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to  REMOVAL [11/2015 - 11/2017]  , or refer to  REMOVAL [11/2017 - 12/2018]  , or refer to  REMOVAL [12/2018 - 08/2019]  , or refer to  REMOVAL [08/2019 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

    Result: 

    A 

    See step  12

  12. INSPECT TELEPHONE MICROPHONE ASSEMBLY 
    1. Remove the telephone microphone assembly.

      Refer to REMOVAL [11/2015 - ]

    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      O2-3 (SNS2) - O2-4 (MCO-) Always Below 1 Ω
      GTY697010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Telephone Microphone Assembly)

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [11/2015 - ] 

    Result: 

    OK 

    See step  13

  13. INSPECT TELEPHONE MICROPHONE ASSEMBLY 
    1. Turn the power switch on (ACC).
    2. Connect an oscilloscope to terminals 2 (MCO+) and 4 (MCO-) of the O2 telephone microphone assembly connector.
      GTY567725Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Telephone Microphone Assembly)
    3. Check the waveform of the telephone microphone assembly using the oscilloscope.

      Result

      Result Proceed to
      A waveform synchronized with the voice input to the telephone microphone assembly is output. A
      A waveform synchronized with the voice input to the telephone microphone assembly is not output. B

    Result: 

    A 

    REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2015 - 11/2017]  , or refer to  REMOVAL [11/2017 - 12/2018]  , or refer to  REMOVAL [12/2018 - 08/2019]  , or refer to  REMOVAL [08/2019 - 07/2020]  , or refer to  REMOVAL [07/2020 - ] 

    Result: 

    B 

    REPLACE TELEPHONE MICROPHONE ASSEMBLY. Refer to  REMOVAL [11/2015 - ] 

  14. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) 
    1. Remove the map light assembly (telephone microphone assembly).

      Refer to REMOVAL [11/2015 - ]

    2. Measure the resistance according to the value(s) in the table below.
      GTY729597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Map Light Assembly (Telephone Microphone Assembly))

      Standard Resistance

      Tester Connection Condition Specified Condition
      O4-14 (SNS2) - O4-15 (MCO-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  16

    Result: 

    OK 

    See step  15

  15. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) 
    1. Turn the power switch on (ACC).
    2. Connect an oscilloscope to terminals 16 (MCO+) and 15 (MCO-) of the O4 map light assembly (telephone microphone assembly) connector.
      GTY593225Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component with harness connected
      (Map Light Assembly (Telephone Microphone Assembly))
    3. Check the waveform of the map light assembly (telephone microphone assembly) using the oscilloscope.

      Result

      Result Proceed to
      A waveform synchronized with the voice input to the map light assembly (telephone microphone assembly) is output. A
      A waveform synchronized with the voice input to the map light assembly (telephone microphone assembly) is not output. B

    Result: 

    A 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2015 - 11/2017]  , or refer to  PROBLEM SYMPTOMS TABLE [11/2017 - 08/2019]  , or refer to  PROBLEM SYMPTOMS TABLE [08/2019 - ] 

    Result: 

    B 

    See step  16

  16. REPLACE TELEPHONE MICROPHONE ASSEMBLY 
    1. Replace the telephone microphone assembly with a new or known good one.

      Refer to REMOVAL [11/2015 - ]

    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 MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY). Refer to  REMOVAL [11/2015 - ] 

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