Nissan Murano: Sonar System :: Dtc/circuit Diagnosis / B2738 Front Sensor Power
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen terms (Trouble diagnosis content) | DTC detection condition | ||
|---|---|---|---|---|
| B2738–11 |
FRONT SENSOR POWER (Front sensor power) |
— | Diagnosis condition | Ignition switch ON |
| Signal (terminal) | Front sensor power supply (terminal 11) | |||
| Threshold | Front sensor power supply is short to ground | |||
| Diagnosis delay time | 4 seconds or more | |||
| B2738–12 | Diagnosis condition | Ignition switch ON | ||
| Signal (terminal) | Front sensor power supply (terminal 11) | |||
| Threshold | Front sensor power supply is short to voltage | |||
| Diagnosis delay time | 4 seconds or more | |||
| B2738–87 | Diagnosis condition | Ignition switch ON | ||
| Signal (terminal) | Front sensor power supply (terminal 11) | |||
| Threshold | Connection error is detected between sonar control unit and Front sonar sensors | |||
| Diagnosis delay time | 4 seconds or more | |||
POSSIBLE CAUSE
-
Harness or connectors
-
Sonar control unit
FAIL-SAFE
Obstacle detection function is deactivated
DTC CONFIRMATION PROCEDURE
CONSULT
-
Ignition switch ON.
-
Ignition switch OFF and wait at least 30 seconds.
-
Ignition switch ON and wait at least 2 seconds or more.
-
Select “Self Diagnostic Result” mode of “SONAR”.
Is DTC B2738 detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: Inspection End.
DETERMINE MALFUNCTION TYPE
CONSULT
-
Ignition switch ON.
-
Select “Self Diagnostic Result” mode of “SONAR”.
-
Check the DTC.
Is DTC B2738–11, 12 or 87 detected?
YES>>11 – GO TO 2.
YES>>12 – GO TO 3.
YES>>87 – GO TO 4.
NO>>Refer to Intermittent Incident.
CHECK FRONT SENSOR POWER SUPPLY CIRCUIT FOR SHORT TO GROUND
-
Ignition switch OFF.
-
Disconnect sonar control unit and all front sonar sensor connectors.
-
Check continuity between sonar control unit connector and ground.
Sonar control unit — Continuity Connector Terminal M70 11 Ground No
Is the inspection result normal?
YES>>Replace sonar control unit. Refer to Removal and Installation.
NO>>Repair or replace harness or connectors.
CHECK FRONT SENSOR POWER SUPPLY FOR SHORT TO VOLTAGE
-
Ignition switch OFF.
-
Disconnect sonar control unit and all front sonar sensor connectors.
-
Ignition switch ON.
-
Check the voltage between sonar control unit connector and ground.
(+) (-) Voltage
(Approx.)Sonar control unit Connector Terminal M70 11 Ground 0 V
Is the inspection result normal?
YES>>Replace sonar control unit. Refer to Removal and Installation.
NO>>Repair or replace harness or connectors.
CHECK SONAR CONTROL UNIT AND FRONT SENSOR CONNECTORS
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 5.
NO>>Repair or replace harness or connectors.
CHECK FRONT SENSOR POWER SUPPLY CIRCUIT FOR OPEN
-
Ignition switch OFF.
-
Disconnect sonar control unit and all front sonar sensor connectors.
-
Check continuity between sonar control unit connector and front sonar sensor connectors.
Sonar control unit Front sonar sensors Continuity Connector Terminal Connector Terminal M70 11 E302 (front sonar sensor LH outer) 3 Yes E306 (front sonar sensor RH outer) E305 (front sonar sensor LH inner) E308 (front sonar sensor RH inner)
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace harness or connectors.
CHECK INTERMITTENT INCIDENT
Perform intermittent incident. Refer to Intermittent Incident.
Is the inspection result normal?
YES>>Replace sonar control unit. Refer to Removal and Installation.
NO>>Repair or replace the applicable malfunctioning components.
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)...
U1000 Can Comm Circuit
DTC Description
DESCRIPTIONCAN (Controller Area Network) is a serial communication line for real-time application. It is an on-Nissan Murano vehicle multiplex communication line with high data communication speed and excellent error detection ability...
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Luggage hooks
When securing items using luggage hooks located on the back of the seat or side finisher do not apply a load over more than 6.5 lbs. (29 N) to a single hook.
The luggage hooks that are located on the floor should have loads less than 110 lbs. (490 N) to a single hook.
