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Nissan Sentra B18 (2020-2025) Service Manual: Power Supply and Ground Circuit

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK FUSE

    1. Check that the following fuse is not blown:

      Terminal No.

      Signal name

      Fuse No.

      Capacity

      40

      Ignition signal

      49

      10 A

    Is the fuse blown?

    YES>>

    Replace the blown fuse after repairing the affected circuit.

    NO>>

    GO TO 2.

  2. CHECK POWER SUPPLY CIRCUIT

      1. Ignition switch OFF.

      2. Disconnect around view monitor control unit connector.

      3. Ignition switch ON.

      4. Check voltage between around view monitor control unit connector and ground.

        Around view monitor control unit

        —

        Condition

        Voltage

        (Approx.)

        Connector

        Terminal

        B72

        40

        Ground

        Ignition switch: ON

        Battery voltage

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace harness or connectors.

  3. CHECK GROUND CIRCUIT

      1. Ignition switch OFF.

      2. Check continuity between around view monitor control unit connector and ground.

        Around view monitor control unit

        —

        Continuity

        Connector

        Terminal

        B72

        39

        Ground

        Yes

    Is the inspection result normal?

    YES >>

    Inspection End.

    NO >>

    Repair or replace harness or connectors.

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