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Nissan Sentra B18 (2020-2025) Service Manual: B2e10 Mic Out Signal

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B2E10-11

MIC OUT SIGNAL

(MIC OUT SIGNAL)

Diagnosis condition

When ignition switch is ON

Signal (terminal)

Microphone signal

Threshold

—

Diagnosis delay time

1 second or more

B2E10-12

Diagnosis condition

When ignition switch is ON

Signal (terminal)

Microphone signal

Threshold

—

Diagnosis delay time

1 second or more

POSSIBLE CAUSE

  • 11: Sound signal circuit is short to ground

  • 12: Sound signal circuit is short to battery

  • AV control unit

  • TCU

FAIL-SAFE

Telematics sound is not output

Confirmation Procedure

Confirmation Procedure

  1. PERFORM DTC CONFIRMATION PROCEDURE

    1. CONSULT

      1. Ignition switch ON.

      2. Ignition switch OFF and wait at least 30 seconds.

      3. Ignition switch ON and wait at least 30 seconds or more.

      4. Select “Self Diagnostic Result” mode of “IVC”.

      5. Check DTC.

    Is DTC B2E10 detected?

    YES >>

    Proceed to DTC Diagnosis Procedure.

    NO >>

    To check malfunction symptom before repair: Refer to Intermittent Incident.

    NO >>

    Confirmation after repair: Inspection End.

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. DETERMINE MALFUNCTION TYPE

    1. CONSULT

      1. Ignition switch ON.

      2. Ignition switch OFF and wait at least 30 seconds.

      3. Ignition switch ON and wait at least 30 seconds or more.

      4. Select “Self Diagnostic Result” mode of “IVC”.

      5. Check DTC.

    Is DTC B2E10–11 or 12 detected?

    YES >>

    11 – GO TO 2.

    YES >>

    12 – GO TO 3.

    NO >>

    Refer to Intermittent Incident.

  2. CHECK TEL VOICE SIGNAL CIRCUITS FOR SHORT TO GROUND

      1. Ignition switch OFF.

      2. Disconnect AV control unit and TCU connectors.

      3. Check the continuity between TCU connector and ground.

        TCU

        —

        Continuity

        Connector

        Terminal

        M160

        12

        Ground

        No
         

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness or connectors.

  3. CHECK TEL VOICE SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY

      1. Ignition switch OFF.

      2. Disconnect AV control unit connector and TCU connector.

      3. Ignition switch ON.

      4. Check the voltage between TCU connector and ground.

        (+)

        (-)

        Voltage

        (Approx.)

        TCU

        Connector

        Terminal

        M160

        12

        Ground

        0 V
         

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness or connectors.

  4. CHECK TEL VOICE SIGNAL

      1. Connect AV control unit connector and TCU connector.

      2. Ignition switch ON.

      3. Check signal between the terminals of TCU connector.

        TCU

        (−)

        Condition

        Reference value

        Connector

        (+)

        Terminal

        M160

        12

        Ground

        Speak into microphone.

    Is the inspection result normal?

    YES >>

    Replace AV control unit. Refer to Removal and Installation.

    NO >>

    Replace TCU. Refer to Removal and Installation.

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