Nissan Rogue (T33) 2021-Present Service Manual: B2738-87 Front Sensor Power Supply

Nissan Rogue (T33) 2021-Present Service Manual / Driver Information & Multimedia :: Sonar System / Dtc/circuit Diagnosis :: Sonar (sonar Control Unit) / B2738-87 Front Sensor Power Supply

DTC Description

DTC DETECTION LOGIC

DTC CONSULT screen items (Trouble diagnosis content) DTC detection condition
B2738-87

FRONT SENSOR POWER

(Front sensor power) 		Diagnosis condition When ignition switch is ON
Signal (terminal) Front sensor power supply
Threshold Connection error is detected between sonar control unit and each sonar sensor.
Diagnosis delay time 4 seconds or more

POSSIBLE CAUSE

  • Harness or connector (Front sensor power supply circuit)

  • Sonar control unit

FAIL-SAFE

Stop the obstacle detection function

CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Turn ignition switch ON.

  2. Turn ignition switch OFF and wait at least 30 seconds.

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

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

  5. Check the DTC.

Is DTC “B2738-87” detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK SONAR CONTROL UNIT CONNECTOR AND EACH FRONT SONAR SENSOR CONNECTOR

Check the terminals and connectors of each front sonar sensor and sonar control unit for damage, bends, and looseness.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace applicable malfunctioning parts.

CHECK OPEN CIRCUIT BETWEEN SONAR CONTROL UNIT AND SENSOR

  1. Turn ignition switch OFF.

  2. Disconnect sonar control unit connector and each front sonar sensor connector.

  3. Check continuity between sonar control unit harness connector and each front sonar sensor harness connector.

    Sonar control unit Each sonar sensor Continuity
    Connector Terminal Connector Terminal
    B20 11 Front sonar sensor LH outer E304 1 Existed
    Front sonar sensor LH inner E305 1
    Front sonar sensor RH inner E306 1
    Front sonar sensor RH outer E307 1

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair harness or connector.

CHECK INTERMITTENT INCIDENT

Perform intermittent incident. Refer to Intermittent Incident.

Is the inspection result normal?

YES>>

Replace the sonar control unit. Refer to Removal and Installation.

NO>>

Repair or replace the applicable malfunctioning parts.

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