NAVIGATION SYSTEM(for Radio and Display Type) Microphone Circuit between Microphone and Radio Receiver

DESCRIPTION




WIRING DIAGRAM

Figure 1. w/o Manual (SOS) Switch

B004QD2E02

Figure 2. w/ Manual (SOS) Switch

B004PNJE03

CAUTION / NOTICE / HINT

Note

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Audio and Visual System.

Click here

PROCEDURE


  1. CHECK MICROPHONE (OPERATION CHECK)


    1. B004PR4

      Enter the "Microphone Check" screen. Refer to Check Microphone in Operation Check.

      Click here

    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
      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

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    C

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)) Click here

    D

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY) Click here

    E

    CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) Click here

    B

  2. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY)


    1. Disconnect the F31 radio and display 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
      F31-4 (MACC) - O2-1 (MACC) Always Below 1 Ω
      F31-5 (MIN+) - O2-2 (MCO+) Always Below 1 Ω
      F31-19 (MIN-) - O2-4 (MCO-) Always Below 1 Ω
      F31-6 (SNS2) - O2-3 (SNS2) Always Below 1 Ω
      F31-4 (MACC) or O2-1 (MACC) - Body ground Always 10 kΩ or higher
      F31-5 (MIN+) or O2-2 (MCO+) - Body ground Always 10 kΩ or higher
      F31-19 (MIN-) or O2-4 (MCO-) - Body ground Always 10 kΩ or higher
      F31-18 (SGND) - Body ground Always 10 kΩ or higher
      F31-6 (SNS2) or O2-3 (SNS2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 4 Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  3. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))


    1. Disconnect the F31 radio and display 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
      F31-4 (MACC) - O4-17 (MACC) Always Below 1 Ω
      F31-5 (MIN+) - O4-16 (MCO+) Always Below 1 Ω
      F31-19 (MIN-) - O4-15 (MCO-) Always Below 1 Ω
      F31-6 (SNS2) - O4-14 (SNS2) Always Below 1 Ω
      F31-4 (MACC) or O4-17 (MACC) - Body ground Always 10 kΩ or higher
      F31-5 (MIN+) or O4-16 (MCO+) - Body ground Always 10 kΩ or higher
      F31-19 (MIN-) or O4-15 (MCO-) - Body ground Always 10 kΩ or higher
      F31-18 (SGND) - Body ground Always 10 kΩ or higher
      F31-6 (SNS2) or O4-14 (SNS2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. B004QVTC37
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F31-4 (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
      F31-18 (SGND) - Body ground Always Below 1 Ω
      F31-19 (MIN-) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      OK (w/o Sliding Roof) A
      OK (w/ Sliding Roof) B
      NG C

    A

    GO TO STEP 12 Click here

    B

    GO TO STEP 14 Click here

    C

    REPLACE REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

  5. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY)


    1. Disconnect the F31 radio and display 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
      F31-6 (SNS2) - O2-3 (SNS2) Always Below 1 Ω
      F31-6 (SNS2) or O2-3 (SNS2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - TELEPHONE MICROPHONE ASSEMBLY)


    1. Disconnect the F36 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

    OK

    GO TO STEP 9 Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)


    1. Disconnect the F31 radio and display 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
      F31-6 (SNS2) - O4-14 (SNS2) Always Below 1 Ω
      F31-6 (SNS2) or O4-14 (SNS2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))


    1. Disconnect the F36 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)


    1. Disconnect the F31 radio and display receiver assembly connector.

    2. Disconnect the F36 telematics transceiver connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F31-5 (MIN+) - F36-18 (MCO+) Always Below 1 Ω
      F31-19 (MIN-) - F36-19 (MCO-) Always Below 1 Ω
      F31-5 (MIN+) or F36-18 (MCO+) - Body ground Always 10 kΩ or higher
      F31-19 (MIN-) or F36-19 (MCO-) - Body ground Always 10 kΩ or higher
      F31-18 (SGND) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY


    1. Disconnect the F36 telematics transceiver connector.

    2. B004QVTC38
      *a

      Component with harness connected

      (Radio and Display Receiver Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F31-18 (SGND) - Body ground Always Below 1 Ω
      F31-19 (MIN-) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    OK

  11. INSPECT TELEMATICS TRANSCEIVER


    1. Reconnect the F36 telematics transceiver connector.

    2. B004QP1C32
      *a

      Component with harness connected

      (Telematics Transceiver)

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

      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

    B

    INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) Click here

    C

    REPLACE TELEMATICS TRANSCEIVER Click here

    A

  12. INSPECT TELEPHONE MICROPHONE ASSEMBLY


    1. Remove the telephone microphone assembly.

      Click here

    2. B004Q4BC28
      *a

      Component without harness connected

      (Telephone Microphone Assembly)

      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
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TELEPHONE MICROPHONE ASSEMBLY Click here

    OK

  13. INSPECT TELEPHONE MICROPHONE ASSEMBLY


    1. Turn the power switch on (ACC).

    2. B004PF9C04
      *a

      Component with harness connected

      (Telephone Microphone Assembly)

      Connect an oscilloscope to terminals 2 (MCO+) and 4 (MCO-) of the O2 telephone microphone assembly connector.

    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

    A

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY Click here

    B

    REPLACE TELEPHONE MICROPHONE ASSEMBLY Click here

  14. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)


    1. Remove the map light assembly (telephone microphone assembly).

      Click here

    2. B004QWVC92
      *a

      Component without harness connected

      (Map Light Assembly (Telephone Microphone Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O4-14 (SNS2) - O4-15 (MCO-) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    GO TO STEP 16 Click here

    OK

  15. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)


    1. Turn the power switch on (ACC).

    2. B004P9XC70
      *a

      Component with harness connected

      (Map Light Assembly (Telephone Microphone Assembly))

      Connect an oscilloscope to terminals 16 (MCO+) and 15 (MCO-) of the O4 map light assembly (telephone microphone assembly) connector.

    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

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    B

  16. REPLACE TELEPHONE MICROPHONE ASSEMBLY


    1. Replace the telephone microphone assembly with a new or known good one.

      Click here

    2. Check if the same malfunction recurs.

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

    A

    END

    B

    REPLACE MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY) Click here