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Nissan Sentra B18 (2020-2025) Service Manual: B2723 Corner Sensor [rr]

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

B2723–60

CORNER SENSOR [RR]

(Rear sonar sensor RH outer)

—

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (reset error)

Diagnosis delay time

—

B2723–61

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (configuration error)

Diagnosis delay time

—

B2723–62

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (power supply error)

Diagnosis delay time

—

B2723–63

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (self diag result)

Diagnosis delay time

—

B2723–65

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (over temperature)

Diagnosis delay time

—

B2723–66

Diagnosis condition

When ignition switch is ON

Signal (terminal)

Rear outer right sensor signal

(terminal 10)

Threshold

Rear outer right sensor signal circuit is open or short to ground

Diagnosis delay time

—

B2723–67

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (diag dump error)

Diagnosis delay time

—

B2723–68

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (resonator error)

Diagnosis delay time

—

B2723–83

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (CRC error)

Diagnosis delay time

—

B2723–92

Diagnosis condition

When ignition switch is ON

Signal (terminal)

—

Threshold

Rear sonar sensor RH outer internal failure (membrane error)

Diagnosis delay time

—

POSSIBLE CAUSE

  • Harness or connectors

  • Rear sonar sensor RH outer

FAIL-SAFE

  • Obstacle detection of rear sonar sensor RH outer is stopped

  • Audible warning (sonar buzzer) of all sensors is stopped

  • Sonar buzzer sounds for 3 seconds

Dtc Confirmation Procedure

DTC Confirmation Procedure

  1. 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 2 seconds or more.

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

    Is DTC B2723 detected?

    YES>>

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

      3. Check DTC.

    Is DTC B2723–60, 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 OUTER SIGNAL CIRCUIT FOR OPEN OR SHORT TO GROUND

      1. Ignition switch OFF.

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

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

        Sonar control unit

        Rear sonar sensor RH outer

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        B87

        10

        B401

        2

        Yes

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

        Sonar control unit

        —

        Continuity

        Connector

        Terminal

        B87

        10

        Ground

        No

    Is the inspection result normal?

    YES >>

    GO TO 3.

    NO >>

    Repair or replace harness or connectors.

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

      1. Ignition switch OFF.

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

        Sonar control unit

        Rear sonar sensor RH outer

        Continuity

        Connector

        Terminal

        Connector

        Terminal

        B87

        14

        B401

        1

        Yes

    Is the inspection result normal?

    YES >>

    GO TO 4.

    NO >>

    Repair or replace harness or connectors.

  4. CHECK REAR SONAR SENSOR RH OUTER SIGNAL

      1. Connect sonar control unit and rear sonar sensor RH outer 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

        10

        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 outer. 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 B2723–60, 61, 62, 63, 65, 67, 68, 83, or 92 detected?

    YES >>

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

    NO >>

    Inspection End.

    B2722 Center Sensor [rr]
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