NAVIGATION SYSTEM (for Navigation Receiver Type) Microphone Circuit between Microphone and Navigation Receiver Assembly

DESCRIPTION

WIRING DIAGRAM

A011Z4FE06

INSPECTION PROCEDURE

Note

After replacing the navigation ECU sub-assembly of vehicles subscribed to pay-type satellite radio broadcasts, registration of the XM radio ID is necessary.

PROCEDURE

  1. CONFIRM MODEL

    1. Choose the model to be inspected.

      Result
      Model Proceed to
      w/o Manual (SOS) switch A
      w/ Manual (SOS) switch B
    B
    A
  2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

    1. Disconnect the navigation ECU sub-assembly connector.

    2. Disconnect the 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
      I67-4 (MACC) - S12-14 (MACC) Always Below 1 Ω
      I67-5 (MIN+) - S12-13 (MCO+) Always Below 1 Ω
      I67-19 (MIN-) - S12-12 (MCO-) Always Below 1 Ω
      I67-6 (SNS2) - S12-15 (SNS2) Always Below 1 Ω
      I67-4 (MACC) - Body ground Always 10 kΩ or higher
      I67-5 (MIN+) - Body ground Always 10 kΩ or higher
      I67-19 (MIN-) - Body ground Always 10 kΩ or higher
      I67-18 (SGND) - Body ground Always 10 kΩ or higher
      I67-6 (SNS2) - Body ground Always 10 kΩ or higher
    NG
    OK
  3. INSPECT NAVIGATION ECU SUB-ASSEMBLY

    1. Reconnect the navigation ECU sub-assembly connector.

    2. Reconnect the roof console box assembly (telephone microphone assembly) connector.

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

      A011XS0E89
      Standard Voltage
      Tester Connection Condition Specified Condition
      I67-4 (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
      I67-18 (SGND) - Body ground Always Below 1 Ω
      I67-19 (MIN-) - Body ground Always Below 1 Ω
    5. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      NG A
      OK B
      Text in Illustration
      *a

      Component with harness connected

      (Navigation ECU Sub-assembly)

    B
    A
  4. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

    1. Disconnect the navigation ECU sub-assembly connector.

    2. Disconnect the 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
      I67-6 (SNS2) - S12-15 (SNS2) Always Below 1 Ω
    NG
    OK
  5. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - DCM (TELEMATICS TRANSCEIVER))

    1. Disconnect the navigation ECU sub-assembly connector.

    2. Disconnect the DCM (telematics transceiver) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I67-5 (MIN+) - I135-18 (MCO+) Always Below 1 Ω
      I67-19 (MIN-) - I135-19 (MCO-) Always Below 1 Ω
      I67-5 (MIN+) - Body ground Always 10 kΩ or higher
      I67-19 (MIN-) - Body ground Always 10 kΩ or higher
      I67-18 (SGND) - Body ground Always 10 kΩ or higher
    NG
    OK
  6. CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

    1. Disconnect the DCM (telematics transceiver) connector.

    2. Disconnect the 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
      I135-33 (MCVD) - S12-14 (MACC) Always Below 1 Ω
      I135-34 (MCI+) - S12-13 (MCO+) Always Below 1 Ω
      I135-35 (MCI-) - S12-12 (MCO-) Always Below 1 Ω
      I135-33 (MCVD) - Body ground Always 10 kΩ or higher
      I135-34 (MCI+) - Body ground Always 10 kΩ or higher
      I135-35 (MCI-) - Body ground Always 10 kΩ or higher
      I135-32 (SGND) - Body ground Always 10 kΩ or higher
    NG
    OK
  7. INSPECT NAVIGATION ECU SUB-ASSEMBLY

    1. Disconnect the DCM (telematics transceiver) connector.

    2. Reconnect the navigation ECU sub-assembly connector.

      A011XS0E90
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      I67-18 (SGND) - Body ground Always Below 1 Ω
      I67-19 (MIN-) - Body ground Always Below 1 Ω
      Text in Illustration
      *a

      Component with harness connected

      (Navigation ECU Sub-assembly)

    NG
    OK
  8. INSPECT DCM (TELEMATICS TRANSCEIVER)

    1. Reconnect the DCM (telematics transceiver) connector.

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

      A011YI9E60
      Standard Voltage
      Tester Connection Condition Specified Condition
      I135-33 (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
      I135-35 (MCI-) - Body ground Always Below 1 Ω
      I135-32 (SGND) - Body ground Always Below 1 Ω
      Text in Illustration
      *a

      Component with harness connected

      (DCM (Telematics Transceiver))

    NG
    OK
  9. INSPECT ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

    1. Disconnect the roof console box assembly (telephone microphone assembly) connector.

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

      A011YTKE22
      Standard Resistance
      Tester Connection Condition Specified Condition
      S12-15 (SNS2) - S12-12 (MCO-) Always Below 1 Ω
      Text in Illustration
      *a

      Component without harness connected

      (Roof Console Box Assembly (Telephone Microphone Assembly))

    NG
    OK
  10. INSPECT ROOF CONSOLE BOX ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

    1. Reconnect the navigation ECU sub-assembly connector.

    2. Reconnect the DCM (telematics transceiver) connector (w/ Manual (SOS) Switch).

    3. Reconnect the roof console box assembly (telephone microphone assembly) connector.

      A011Y5TE19
    4. Turn the power switch on (ACC).

    5. Connect an oscilloscope to terminals 13 (MCO+) and 12 (MCO-) of the roof console box assembly (telephone microphone assembly) connector.

    6. Check the waveform of the 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))

    B
    A