Nissan Murano. Manual - part 369

B2423 AUTOMATIC BACK DOOR MOTOR OPERATION TIME

DLK-87

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace automatic back door unit. Refer to 

DLK-352, "POWER BACK DOOR DRIVE ASSEMBLY

: Removal and Installation"

.

NO

>> Replace automatic back door control unit. Refer to 

DLK-368, "Removal and Installation"

.

(+)

Condition

Voltage (V)

(Approx.)

Automatic back door control unit

(–)

Connector

Terminal 

B76

7

Ground

Automatic back 
door

Active (open)

Battery voltage

Active (close)

Other than above

0

8

Ground

Automatic back 
door

Active (close)

Battery voltage

Active (open)

Other than above

0

JMKIA1865ZZ

JMKIA1865ZZ

DLK-88

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2424 CLOSURE CONDITION

B2424 CLOSURE CONDITION

Description

INFOID:0000000009718966

The back door lock assembly consists of the open switch, close switch, half latch switch and closure motor.
The automatic back door control unit determines the back door lock condition according to the signal from
each switch and performs the open/close operation of closure motor.

DTC Logic

INFOID:0000000009718967

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON. 

2.

Operate automatic back door.

3.

Check “Self Diagnostic Result” with CONSULT.

Is DTC detected?

YES

>> Go to 

DLK-88, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009718968

1.

CHECK OPEN/CLOSE SWITCH SIGNAL

Check open/close switch (“OPEN SW”“CLOSE SW”) in Data Monitor mode.

Is the inspection result normal?

YES

>> Open switch is OK.

NO

>> GO TO 2.

2.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT OUTPUT

1.

Turn ignition switch OFF.

2.

Disconnect back door lock assembly connector.

3.

Check voltage between back door lock assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B2424

CLOSURE CONDITION

When the following conditions are detected after 
OPEN/CLOSE operation of the back door closure 
motor
• Open switch and close switch are ON 

• Harness or connector

(Open switch or close switch 
circuit is shorted)

• Back door lock assembly

Monitor item

Condition

Status

OPEN SW

Back door lock

Fully closed/Half latch

OFF

Open

ON

CLOSE SW

Back door lock

Open/Half latch

OFF

Fully closed

ON

(+)

(–)

Voltage (V)

(Approx.)

Back door lock assembly

Connector

Terminal

D179

5

Ground

Battery voltage

4

B2424 CLOSURE CONDITION

DLK-89

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3.

CHECK OPEN/CLOSE SWITCH CIRCUIT

1.

Disconnect automatic back door control unit connector.

2.

Check continuity between automatic back door control unit harness connector and back door lock assem-
bly harness connector.

3.

Check continuity between automatic back door control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace automatic back door control unit. Refer to 

DLK-368, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK CLOSE SWITCH GROUND CIRCUIT

Check continuity between back door lock assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK CLOSE SWITCH

Refer to 

DLK-89, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace back door lock assembly. Refer to 

DLK-351, "DOOR LOCK : Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-44, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009718969

COMPONENT INSPECTION

1.

CHECK OPEN/CLOSE SWITCH

Check back door lock assembly (open/close switch).

Automatic back door control unit

 Back door lock assembly

Continuity 

 Connector

Terminal

Connector

Terminal

B8

19

D179

5

Existed

20

4

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B8

19

Not existed

20

Back door lock assembly 

Ground

Continuity 

Connector

Terminal

D179

8

Existed

Terminal

Condition

Continuity

Back door lock assembly (close switch)

DLK-90

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2424 CLOSURE CONDITION

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace back door lock assembly. Refer to 

DLK-351, "DOOR LOCK : Removal and Installation"

.

5

8

Back door lock

Fully closed

Existed

Open/Half latch

Not existed

4

Open

Existed

Fully closed/Half latch

Not existed