Nissan Murano: Sonar System :: Dtc/circuit Diagnosis / B2724 Sonar Control Unit

Nissan Murano (Z52) 2015-2024 Service Manual / Driver Information & Multimedia / Sonar System :: Dtc/circuit Diagnosis / B2724 Sonar Control Unit

DTC Description

DTC DETECTION LOGIC

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition
B2724–23

SONAR CONTROL UNIT

(Sonar control unit)
Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (under voltage)
Diagnosis delay time
B2724–24 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (over voltage)
Diagnosis delay time
B2724–44 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (RAM failure)
Diagnosis delay time
B2724–45 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (ROM failure)
Diagnosis delay time
B2724–46 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (EEPROM failure)
Diagnosis delay time
B2724–48 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (internal software execution failure)
Diagnosis delay time
B2724–49 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (basic chip set failure)
Diagnosis delay time
B2724–55 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (not configured)
Diagnosis delay time
B2724–86 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (SPI comm failure)
Diagnosis delay time
B2724–87 Diagnosis condition When ignition switch is ON
Signal (terminal)
Threshold Sonar ECU internal failure (high side switch failure)
Diagnosis delay time

POSSIBLE CAUSE

  • Charging system malfunction

  • Sonar control unit power supply or ground circuit

  • Sonar control unit configuration

  • Sonar control unit

FAIL-SAFE

  • Off indicator blinks periodically (500ms ON, 500ms OFF).

  • Sonar buzzer sounds for 3 seconds.

Confirmation Procedure

DTC CONFIRMATION PROCEDURE

CONSULT

  1. Ignition switch ON.

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

Is DTC B2724–23, 24, 44, 45, 46, 48, 49, 55, 86, 87 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

DETERMINE MALFUNCTION TYPE

CONSULT

  1. Ignition switch ON.

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

  3. Check DTC.

Is DTC B2724–23, 24, 44, 45, 46, 48, 49, 55, 86 or 87 detected?

YES>>

23 or 24 – GO TO 2.

YES>>

55 – GO TO 4.

YES>>

44, 45, 46, 48, 49, 86 or 87 – GO TO 5.

NO>>

Refer to Intermittent Incident.

CHECK CHARGING SYSTEM

Check the Nissan Murano vehicle charging system. Refer to Work Flow (With 165-DSS-5000P) or Work Flow (Without 165-DSS-5000P).

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning components.

CHECK SONAR CONTROL UNIT POWER SUPPLY AND GROUND

Perform the sonar control unit power supply and ground circuit diagnosis procedure. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace sonar control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness or connectors.

PERFORM SONAR CONTROL UNIT CONFIGURATION PROCEDURE

CONSULT

Perform the sonar control unit configuration procedure. Refer to Work Procedure.

Was the configuration procedure successful?

YES>>

GO TO 5.

NO>>

Replace sonar control unit. Refer to Removal and Installation.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

CONSULT

  1. Ignition switch ON.

  2. Erase DTC.

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

  4. Check DTC.

Is DTC B2724–44, 45, 46, 48, 49, 55, 86 or 87 detected?

YES>>

Replace sonar control unit. Refer to Removal and Installation.

NO>>

Inspection End.

    B2720 Corner Sensor [rl]

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B2720–60 CORNER SENSOR [RL] (Rear sonar sensor LH outer) — Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (reset error) Diagnosis delay time — B2720–61 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (configuration error) Diagnosis delay time — B2720–62 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (power supply error) Diagnosis delay time — B2720–63 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (self diag result) Diagnosis delay time — B2720–65 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (over temperature) Diagnosis delay time — B2720–66 Diagnosis condition When ignition switch is ON Signal (terminal) Rear sonar sensor LH outer signal (terminal 22) Threshold Rear sonar sensor LH outer signal circuit is open or short to ground Diagnosis delay time — B2720–67 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (diag dump error) Diagnosis delay time — B2720–68 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (resonator error) Diagnosis delay time — B2720–83 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (CRC error) Diagnosis delay time — B2720–92 Diagnosis condition When ignition switch is ON Signal (terminal) — Threshold Rear sonar sensor LH outer internal failure (membrane error) Diagnosis delay time — POSSIBLE CAUSE Harness or connectors Rear sonar sensor LH outer FAIL-SAFE Obstacle detection of rear sonar sensor LH outer is stopped Audible warning (sonar buzzer) of all sensors is stopped Sonar buzzer sounds for 3 seconds DTC Confirmation Procedure DTC CONFIRMATION PROCEDURE CONSULT Ignition switch ON...

    B272d Front Buzzer

    DTC Description DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detection condition B272D–12 FRONT BUZZER (Sonar buzzer) — Diagnosis condition When ignition switch is ON Signal (terminal) Sonar buzzer power circuit (terminal 19) Sonar buzzer signal (terminal 18) Threshold Sonar buzzer power circuit is short to voltage Sonar buzzer signal circuit is short to voltage Diagnosis delay time — B272D–14 Diagnosis condition When ignition switch is ON Signal (terminal) Sonar buzzer power circuit (terminal 19) Sonar buzzer signal (terminal 18) Threshold Sonar buzzer power circuit is open or short to ground Sonar buzzer signal circuit is open or short to ground Diagnosis delay time — POSSIBLE CAUSE Harness or connectors Sonar buzzer FAIL-SAFE Off indicator blinks periodically (500ms ON, 500ms OFF)...

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