Nissan Murano. Manual - part 378

OUTSIDE KEY ANTENNA

DLK-123

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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OUTSIDE KEY ANTENNA

Description

INFOID:0000000009719030

Detects whether Intelligent Key is outside the vehicle.
Integrated in front outside handle (driver side, passenger side) and installed in rear bumper.

Component Function Check

INFOID:0000000009719031

1.

CHECK DOOR REQUEST SWITCH

Check door request switch. Refer to  

DLK-117, "Component Function Check"

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refer to 

DLK-117, "Diagnosis Procedure"

.

2.

CHECK FUNCTION

Be sure that Intelligent Key is in each outside key antenna detection range.

Does door lock/unlock when each request switch is pressed?

YES

>> Outside key antenna is OK.

NO

>> Refer to 

DLK-123, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009719032

1.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 1

1.

Turn ignition switch OFF.

2.

Check signal between BCM harness connector and ground with oscilloscope.

Is the inspection result normal? 

YES

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

NO

>> GO TO 2.

2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

1.

Disconnect BCM connector and malfunctioning front outside handle connector or outside key antenna
(rear bumper) connector.

2.

Check continuity between BCM harness connector and outside key antenna harness connector.

(+)

(–)

Condition

Signal

(Reference value.)

BCM

Connector

Terminal

M122

Driver side

76, 77

Ground

Request switch 

is pushed

When Intelligent Key 
is in the antenna de-
tection area.

Passenger 

side

74, 75

M121

Rear 

bumper

38, 39

When Intelligent Key 
is not in the antenna 
detection area.

JMKIA0062GB

JMKIA0063GB

DLK-124

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

OUTSIDE KEY ANTENNA

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

1.

Replace malfunctioning outside key antenna. (New antenna or other antenna)

2.

Connect BCM connector and outside key antenna (New antenna or other antenna) connector.

3.

Check signal between BCM harness connector and ground with oscilloscope.

Is the inspection result normal?

YES-1 >> Replace malfunctioning front outside handle (LH or RH). Refer to 

DLK-344, "OUTSIDE HANDLE :

Removal and Installation"

.

YES-2 >> Replace outside key antenna (Rear bumper). Refer to 

DLK-361, "REAR BUMPER : Removal and

Installation"

.

NO

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

BCM

Outside key antenna

Continuity 

Connector

Terminal

Connector

Terminal

M122

77

D12 (driver side)

1

Existed

76

2

75

D52 (passenger side)

1

74

2

M121

39

B85 (rear bumper)

1

38

2

BCM

Ground

Continuity 

Connector

Terminal

M122

74

Not existed

75

76

77

M121

38

39

(+)

(–)

Condition

Signal

(Reference value.)

BCM

Connector

Terminal

M122

Driver side

77

Ground

Door request 

switch is 

pushed

When Intelligent Key 
is in the antenna de-
tection area.

Passenger 

side

75

M121

Rear bumper

39

When Intelligent Key 
is not in the antenna 
detection area.

JMKIA0062GB

JMKIA0063GB

INTELLIGENT KEY WARNING BUZZER

DLK-125

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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INTELLIGENT KEY WARNING BUZZER

Description

INFOID:0000000009719033

Answers back and warns for an inappropriate operation.

Component Function Check

INFOID:0000000009719034

1.

CHECK FUNCTION

Check Intelligent Key warning buzzer (“OUTSIDE BUZZER”) in Active Test mode.

Is the inspection result normal?

YES

>> Intelligent Key warning buzzer (engine room) is OK.

NO

>> Refer to 

DLK-125, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009719035

1.

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10 A fuse, [No.6, located in fuse block (J/B)].

Is fuse fusing?

YES

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

NO

>> GO TO 2.

2.

CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT

1.

Disconnect Intelligent Key warning buzzer connector.

2.

Check voltage between Intelligent Key warning buzzer harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace Intelligent Key warning buzzer power supply circuit.

3.

CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and Intelligent Key warning buzzer harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness between BCM and Intelligent Key warning buzzer.

4.

CHECK INTELLIGENT KEY WARNING BUZZER

Check 

DLK-126, "Component Inspection"

.

Is the inspection result normal?

(+)

(–)

Voltage (V)

(Approx.)

Intelligent Key warning buzzer

Connector

Terminal

E25

1

Ground

Battery voltage

BCM

Intelligent Key warning buzzer

Continuity 

Connector

Terminal

Connector

Terminal

M121

64

E25

3

Existed

BCM

Ground

Continuity 

Connector

Terminal

M121

64

Not existed

DLK-126

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

INTELLIGENT KEY WARNING BUZZER

YES

>> Replace BCM. Refer to 

BCS-98, "Removal and Installation"

.

NO

>> Replace Intelligent Key warning buzzer. Refer to 

DLK-363, "Removal and Installation"

.

Component Inspection

INFOID:0000000009719036

1.

CHECK INTELLIGENT KEY WARNING BUZZER

Connect battery power supply to Intelligent Key warning buzzer terminals 1 and 3, and check the operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Intelligent Key warning buzzer. Refer to 

DLK-363, "Removal and Installation"

.

1 (BAT+) - 3 (BAT-)

: the buzzer sounds