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Nissan Sentra B18 (2020-2025) Service Manual: Dtc Diagnosis Procedure

Nissan Sentra B18 (2020-2025) Service Manual / Driver Information & Multimedia / Sonar System :: Dtc/circuit Diagnosis / B2722 Center Sensor [rr] / Dtc Diagnosis Procedure

DTC Diagnosis Procedure

  1. DETERMINE MALFUNCTION TYPE

    1. CONSULT

      1. Ignition switch ON.

      2. Select “Self Diagnostic Result” mode of “SONAR”.

      3. Check DTC.

    Is DTC B2722–60, 61, 62, 63, 65, 66, 67, 68, 83 or 92 detected?

    YES >>

    66 – GO TO 2.

    YES >>

    60, 61, 62, 63, 65, 67, 68, 83 or 92 – GO TO 5.

    NO >>

    Refer to Intermittent Incident.

  2. CHECK REAR SONAR SENSOR RH INNER SIGNAL CIRCUIT FOR OPEN OR SHORT TO GROUND

      1. Ignition switch OFF.

      2. Disconnect sonar control unit and rear sonar sensor RH inner connectors.

      3. Check continuity between sonar control unit connector and rear sonar sensor RH inner connector.

        Sonar control unit

        Rear sonar sensor RH inner

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        B87

        9

        B404

        2

        Yes

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

        Sonar control unit

        —

        Continuity

        Connector

        Terminal

        B87

        9

        Ground

        No

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace harness or connectors.

  3. CHECK REAR SONAR SENSOR RH INNER GROUND CIRCUIT FOR OPEN

      1. Ignition switch OFF.

      2. Check continuity between sonar control unit connector and rear sonar sensor RH inner connector.

        Sonar control unit

        Rear sonar sensor RH inner

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        B87

        14

        B404

        1

        Yes

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness or connectors.

  4. CHECK REAR SONAR SENSOR RH INNER SIGNAL

      1. Connect sonar control unit and rear sonar sensor RH inner connectors.

      2. Ignition switch ON.

      3. Check signal between the terminals of sonar control unit connector.

        Sonar control unit

        Condition

        Reference value

        Connector

        (+)

        (–)

        Terminal

        Terminal

        B87

        9

        14

        Sensor signal input

    Is the inspection result normal?

    YES >>

    Replace sonar control unit. Refer to Removal and Installation.

    NO >>

    Replace rear sonar sensor RH inner. Refer to Removal and Installation.

  5. PERFORM DTC CONFIRMATION PROCEDURE AGAIN

    1. CONSULT

      1. Ignition switch ON.

      2. Erase DTC.

      3. Select “Self Diagnostic Result” mode of “SONAR”.

      4. Check DTC.

    Is DTC B2722–60, 61, 62, 63, 65, 67, 68, 83, or 92 detected?

    YES >>

    Replace rear sonar sensor RH inner. Refer to Removal and Installation.

    NO >>

    Inspection End.

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