AUDIO AND VISUAL SYSTEM(w/ Navigation System) Microphone Circuit between Microphone and Navigation Receiver Assembly

DTC Code DTC Name
Microphone Circuit between Microphone and Navigation Receiver Assembly

DESCRIPTION

  • The multi-media module receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.

  • Using this circuit, the multi-media module receiver assembly sends power to the map light assembly (telephone microphone assembly), and the map light assembly (telephone microphone assembly) sends microphone signals to the multi-media module receiver assembly (w/o Telematics Transceiver).

  • Using this circuit, the DCM (telematics transceiver) sends power to the map light assembly (telephone microphone assembly), and the map light assembly (telephone microphone assembly) sends microphone signals to the multi-media module receiver assembly via the DCM (telematics transceiver) (w/ Telematics Transceiver).

WIRING DIAGRAM

E283023E01

CAUTION / NOTICE / HINT

Note:

If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure using the GTS (w/ Telematics Transceiver).

Click here

PROCEDURE

  1. CONFIRM MODEL

    1. Choose the model to be inspected.

    Model

    Model

    Proceed to

    w/o Telematics Transceiver

    A

    w/ Telematics Transceiver

    B
    B

    CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY)Click here

    A

  2. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY)

    1. Disconnect the H45 multi-media module receiver assembly connector.

    2. Disconnect the W7 map light assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H45-27 (MIN+) - W7-12 (MCO+)

      Always

      Below 1 Ω

      H45-29 (MACC) - W7-11 (MACC)

      Always

      Below 1 Ω

      H45-48 (MIN-) - W7-13 (MCO-)

      Always

      Below 1 Ω

      H45-49 (SNS2) - W7-14 (SNS2)

      Always

      Below 1 Ω

      H45-27 (MIN+) - Body ground

      Always

      10 kΩ or higher

      H45-28 (SGND) - Body ground

      Always

      10 kΩ or higher

      H45-29 (MACC) - Body ground

      Always

      10 kΩ or higher

      H45-48 (MIN-) - Body ground

      Always

      10 kΩ or higher

      H45-49 (SNS2) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    1. E239014C26

      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      H45-29 (MACC) - Body ground

      Engine 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

      H45-28 (SGND) - Body ground

      Always

      Below 1 Ω

      H45-48 (MIN-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here

    OK

  4. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    1. E239014C26

      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      H45-29 (MACC) - Body ground

      Engine 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

      H45-28 (SGND) - Body ground

      Always

      Below 1 Ω

      H45-48 (MIN-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    CHECK TELEPHONE MICROPHONE ASSEMBLYClick here

    OK

  5. CHECK MAP LIGHT ASSEMBLY

    1. Turn the engine switch on (ACC).

    2. Connect an oscilloscope to terminals W7-12 (MCO+) and W7-13 (MCO-) of the map light assembly connector.

    3. E205727C04

      *a

      Component with harness connected

      (Map Light Assembly)

      Check the waveform of the telephone microphone assembly using the oscilloscope.

    4. Proceed to the next step based on the inspection result.

    Result

    Result

    Proceed to

    A waveform synchronized with the voice input to the map light assembly is output.

    A

    A waveform synchronized with the voice input to the map light assembly is not output.

    B
    A

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here

    B

  6. CHECK TELEPHONE MICROPHONE ASSEMBLY

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

      Click here

    2. Check if the same DTC is output again.

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (TELEPHONE MICROPHONE ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE MAP LIGHT ASSEMBLY

    Click here

  7. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY)

    1. Disconnect the H45 multi-media module receiver assembly connector.

    2. Disconnect the W7 map light assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H45-49 (SNS2) - W7-14 (SNS2)

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - DCM [TELEMATICS TRANSCEIVER])

    1. Disconnect the H45 multi-media module receiver assembly connector.

    2. Disconnect the G56 DCM (telematics transceiver) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H45-27 (MIN+) - G56-18 (MCO+)

      Always

      Below 1 Ω

      H45-48 (MIN-) - G56-19 (MCO-)

      Always

      Below 1 Ω

      H45-27 (MIN+) - Body ground

      Always

      10 kΩ or higher

      H45-48 (MIN-) - Body ground

      Always

      10 kΩ or higher

      H45-28 (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 (DCM [TELEMATICS TRANSCEIVER] - MAP LIGHT ASSEMBLY)

    1. Disconnect the G56 DCM (telematics transceiver) connector.

      Click here

    2. Disconnect the W7 map light assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G56-33 (MCVD) - W7-11 (MACC)

      Always

      Below 1 Ω

      G56-34 (MCI+) - W7-12 (MCO+)

      Always

      Below 1 Ω

      G56-35 (MCI-) - W7-13 (MCO-)

      Always

      Below 1 Ω

      G56-33 (MCVD) - Body ground

      Always

      10 kΩ or higher

      G56-34 (MCI+) - Body ground

      Always

      10 kΩ or higher

      G56-35 (MCI-) - Body ground

      Always

      10 kΩ or higher

      G56-32 (SGND) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    1. E239014C27

      *a

      Component with harness connected

      (Multi-media Module Receiver Assembly)

      Disconnect the G56 DCM (telematics transceiver) connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      H45-28 (SGND) - Body ground

      Always

      Below 1 Ω

      H45-48 (MIN-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here

    OK

  11. CHECK DCM (TELEMATICS TRANSCEIVER)

    1. E283057C01

      *a

      Component with harness connected

      (DCM [Telematics Transceiver])

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

      Standard Voltage

      Tester Connection

      Switch Condition

      Specified Condition

      G56-33 (MCVD) - Body ground

      Engine 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

      G56-32 (SGND) - Body ground

      Always

      Below 1 Ω

      G56-35 (MCI-) - Body ground

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE DCM (TELEMATICS TRANSCEIVER)

    Click here

    OK

  12. INSPECT MAP LIGHT ASSEMBLY

    1. E140936E74

      Remove the map light assembly.

      Click here

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      13 (MCO-) - 14 (SNS2)

      Always

      Below 1 Ω

    Result

    Proceed to

    OK

    NG
    NG

    CHECK TELEPHONE MICROPHONE ASSEMBLYClick here

    OK

  13. CHECK MAP LIGHT ASSEMBLY

    1. E205727C04

      *a

      Component with harness connected

      (Map Light Assembly)

      Turn the engine switch on (ACC).

    2. Connect an oscilloscope to terminals W7-12 (MCO+) and W7-13 (MCO-) of the map light 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 map light assembly is output.

      A

      A waveform synchronized with the voice input to the map light assembly is not output.

      B
    A

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY

    Click here

    B

  14. CHECK TELEPHONE MICROPHONE ASSEMBLY

    1. Replace the telephone microphone assembly with a new or normally functioning one.

      Click here

    2. Check if the same DTC is output again.

      Body Electrical > Navigation System > Trouble Codes

      OK

      No DTCs are output.

    Result

    Proceed to

    OK

    NG
    OK

    END (TELEPHONE MICROPHONE ASSEMBLY IS DEFECTIVE)

    NG

    REPLACE MAP LIGHT ASSEMBLY

    Click here