LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 596 (Around View Monitor System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B272D: Front Buzzer >> Diagnosis Procedure >> Around View Monitor System (DTC/Circuit Diagnosis)

Around View Monitor System (DTC/Circuit Diagnosis)

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SONAR BUZZER SIGNAL CIRCUIT OPEN OR SHORT TO GROUND 
    1. Turn ignition switch OFF.
    2. Disconnect sonar control unit and sonar buzzer connectors.
    3. Check continuity between sonar control unit connector M70 and sonar buzzer connector B35.

      Sonar control unit

      Sonar buzzer

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M70

      19

      B35

      2

      Yes

      20

      3

    4. Check continuity between sonar control unit connector M70 and ground.

      Sonar control unit

      Ground

      Continuity

      Connector

      Terminal

      M70

      19

      --

      No

      20

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Repair or replace harness or connectors.

  2. CHECK SONAR BUZZER SIGNAL CIRCUIT SHORT TO BATTERY 
    1. Turn ignition switch ON.
    2. Check voltage between sonar control unit connector M70 and ground.

      Sonar control unit

      Ground

      Voltage

      (Approx.)

      Connector

      Terminal

      M70

      19

      --

      0 V

      20

    Is the inspection result normal?

    YES

    Replace sonar buzzer. Refer to Removal and Installation .

    NO

    Repair or replace harness or connectors.