Nissan Murano Z51 (2008 year). Manual - part 96

 

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Nissan Murano Z51 (2008 year). Manual - part 96

 

 

DLK-68

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

U1000 CAN COMM CIRCUIT

1.

Turn ignition switch ON and wait for 2 seconds or more.

2.

Check “Self Diagnostic Result”.

Is “CAN COMM CIRCUIT” displayed?

YES

>> Refer to 

LAN-16, "Trouble Diagnosis Flow Chart"

.

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

Revision: 2008 October

2009 Murano

U1010 CONTROL UNIT (CAN)

DLK-69

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

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A

B

DLK

N

O

P

U1010 CONTROL UNIT (CAN)

BCM

BCM : DTC Logic

INFOID:0000000003318010

DTC DETECTION LOGIC

BCM : Diagnosis Procedure

INFOID:0000000003318011

1.

REPLACE BCM

When DTC [U1010] is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-96, "Removal and Installation"

BCM : Special Repair Requirement

INFOID:0000000003318012

1.

REQUIRED WORK WHEN REPLACING BCM

Initialize control unit. Refer to CONSULT-III operation manual NATS-IVIS/NVIS.

>> Work end.

AUTOMATIC BACK DOOR CONTROL UNIT

AUTOMATIC BACK DOOR CONTROL UNIT : DTC Logic

INFOID:0000000003430067

DTC DETECTION LOGIC

AUTOMATIC BACK DOOR CONTROL UNIT : Diagnosis Procedure

INFOID:0000000003430068

1.

REPLACE BCM

When DTC [U1010] is detected, replace automatic back door control unit.

>> Replace automatic back door control unit. Refer to 

DLK-379, "Removal and Installation"

.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

DTC

CONSULT-III dis-

play description

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT 
(CAN)

Automatic back door control unit detected inter-
nal CAN communication circuit malfunction

Automatic back door control unit

Revision: 2008 October

2009 Murano

DLK-70

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2401 IGNITION POWER SUPPLY CIRCUIT

B2401 IGNITION POWER SUPPLY CIRCUIT

Description

INFOID:0000000003430070

Automatic back door control unit receive ignition power supply condition signal from BCM via CAN communi-
cation, and compare the signal with ignition power supply condition of automatic back door control unit to
detect inflammation.

DTC Logic

INFOID:0000000003430071

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait for at least 1 second.

2.

Check “Self Diagnostic Result” with CONSULT-III.

Is DTC detected?

YES

>> Go to 

DLK-70, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625815

1.

CHECK FUSE, FUSIBLE LINK AND CIRCUIT BREAKER

Check that the following fuse, fusible link and circuit breaker are not fusing.

Is the fuse fusing?

YES

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

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic back door control unit connector.

3.

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

Is the measurement value normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2401

IGNITION POWER 
SUPPLY CIRCUIT

When the automatic power back door control unit 
detects the following condition for 0.3 second or 
more
• Power supply condition (OFF) of automatic back 

door unit and Ignition position signal (ON) from 
BCM via CAN

• Fuse
• Harness or connectors

(Ignition power supply condition 
circuit is open or shorted)

Fuse No.

Signal name

3

Ignition power supply

(+)

(

−

)

Condition

Voltage

(Approx.)

Automatic back door control unit

Connector

Terminal

B8

9

Ground

Ignition switch

ON

Battery voltage

Revision: 2008 October

2009 Murano

B2403 ENCODER

DLK-71

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

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A

B

DLK

N

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B2403 ENCODER

Description

INFOID:0000000003430088

The automatic back door control unit receives the pulse signals from encoders A and B that occurred due to
synchronization with the back door operation. The automatic back door control unit calculates the back door
position, operation direction, and operation speed according to the received pulse signals.

DTC Logic

INFOID:0000000003430089

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-III.

Is DTC detected?

YES

>> Go to 

DLK-71, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625816

1.

CHECK ENCODER SIGNAL

Check encoder (“ENCODER A”, “ENCODER B”) in Data Monitor mode.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK ENCODER POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect automatic back door unit connector.

3.

Check voltage between automatic back door unit 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

B2403

ENCODER

When the automatic back door control unit cannot re-
ceive the signal from the encoder just after starting the 
open/close operation

• Encoder
• Harness or connectors

(Encoder circuit is open or short-
ed)

• Automatic back door control unit

Monitor item

Condition

Status

 ENCODER A

Back door

Moving

Change HI or LO

Stop

No change HI or LO

 ENCODER B

Back door

Moving

Change HI or LO

Stop

No change HI or LO

(+)

(–)

Voltage (V)

(Approx.)

Automatic back door unit connector

Connector

Terminal

B76

2

Ground

Battery voltage

Revision: 2008 October

2009 Murano

DLK-72

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2403 ENCODER

3.

CHECK ENCODER POWER SUPPLY CIRCUIT

1.

Disconnect automatic back door control unit connector.

2.

Check continuity between automatic back door control unit harness connector and automatic back door
unit 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-379, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK ENCODER GROUND CIRCUIT

1.

Disconnect automatic back door control unit connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK ENCODER SIGNAL CIRCUIT

1.

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

2.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace harness.

6.

CHECK ENCODER

1.

Connect automatic back door control unit connector and automatic back door unit connector

2.

Check voltage between automatic back door control unit and ground.

Automatic back door control unit

Automatic back door unit

Continuity

 Connector

Terminal

 Connector

Terminal

B8

26

B76

2

Existed

Automatic back door control unit

Ground

Continuity

 Connector

Terminal

B8

26

Not existed

Automatic back door control unit

Automatic back door unit

Continuity

 Connector

Terminal

 Connector

Terminal

B8

23

B76

6

Existed

Automatic back door control unit

Automatic back door unit

Continuity

 Connector

Terminal

 Connector

Terminal

B8

24

B76

5

Existed

25

1

Automatic back door control unit

Ground

Continuity

 Connector

Terminal

B8

24

Not existed

25

Revision: 2008 October

2009 Murano

B2403 ENCODER

DLK-73

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

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A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace automatic back door control unit. Refer to 

DLK-379, "Removal and Installation"

.

NO

>> Replace automatic back door unit. Refer to 

DLK-362, "POWER BACK DOOR DRIVE ASSEMBLY

: Removal and Installation"

.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Automatic back door control unit

Connector

Terminal 

B8

24

Ground

Back door

Moving

Stop

0/Battery voltage

25

Ground

Back door

Moving

Stop

0/Battery voltage

JMKIA1864ZZ

JMKIA1864ZZ

Revision: 2008 October

2009 Murano

DLK-74

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2409 HALF LATCH SWITCH

B2409 HALF LATCH SWITCH

Description

INFOID:0000000003430085

The half latch switch is integrated in the back door lock assembly and it detects the half latch condition of the
back door lock.

DTC Logic

INFOID:0000000003430086

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Operate power back door from closed to open.

3.

Check “Self Diagnostic Result” CONSULT-III.

Is DTC detected?

YES

>> Go to 

DLK-74, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625818

1.

CHECK HALF LATCH SWITCH SIGNAL

Check half latch switch (“HALF LATCH SW”) in Data Monitor mode.

Is the inspection result normal?

YES

>> GO TO 6.

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.

3.

CHECK HALF LATCH 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.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2409

HALF LATCH 
SWITCH

When the automatic back door control unit cannot 
detect the half latch switch ON condition even when 
the back door is in the open position 

• Half latch switch 
• Harness or connectors

(Half latch switch circuit is open)

• Automatic back door control unit

Monitor item

Condition

Status

HALF LATCH SW

Back door lock

Fully closed/Half latch

OFF

Open

ON

(+)

(–)

Voltage (V)

(Approx.)

Back door lock assembly

Connector

Terminal

D179

6

Ground

Battery voltage

Revision: 2008 October

2009 Murano

B2409 HALF LATCH SWITCH

DLK-75

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

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J

L

M

A

B

DLK

N

O

P

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-379, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK HALF LATCH 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 back door lock assembly ground circuit.

5.

CHECK HALF LATCH SWITCH

Refer to 

DLK-75, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace back door lock assembly. Refer to 

DLK-376, "Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003625819

COMPONENT INSPECTION

1.

CHECK HALF LATCH SWITCH

Check back door lock assembly (half latch switch).

Is the inspection result normal?

YES

>> Half latch switch is OK.

NO

>> Replace back door lock assembly. Refer to 

DLK-361, "DOOR LOCK : Removal and Installation"

.

Automatic back door control unit

Back door lock assembly

Continuity 

 Connector

Terminal

 Connector

Terminal

B8

8

D179

6

Existed

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B8

8

Not existed

Back door lock assembly

Ground

Continuity 

 Connector

Terminal

D179

8

Existed

Terminal

Condition

Continuity

Back door lock assembly (half latch switch)

6

8

Back door lock

Open

Existed

Fully closed/Half latch

Not existed

Revision: 2008 October

2009 Murano

DLK-76

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2416 TOUCH SENSOR RH

B2416 TOUCH SENSOR RH

Description

INFOID:0000000003430082

The touch sensor RH is installed on the right edge of the back door, and it detects any trapped foreign material
in the back door during the auto close operation and at the closure operation.

DTC Logic

INFOID:0000000003430083

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

DLK-76, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625820

1.

CHECK TOUCH SENSOR RH SIGNAL

Check touch sensor RH (“TOUCH SEN RH”) in Data Monitor mode.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect touch sensor RH connector.

3.

Check voltage between touch sensor RH harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK TOUCH SENSOR RH CIRCUIT

1.

Disconnect automatic back door control unit connector.

2.

Check continuity between automatic back door control unit harness connector and touch sensor RH har-
ness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2416

TOUCH SENSOR 
RH

 When the automatic back door control unit detects 
the open circuit of the touch sensor RH

• Touch sensor RH
• Harness or connectors

(Touch sensor RH circuit is short-
ed)

• Automatic back door control unit

Monitor item

Condition

Status

 TOUCH SEN RH

Touch sensor RH

Other than below

OFF

Detect obstruction

ON

(+)

(–)

Voltage (V)

(Approx.)

Touch sensor RH

 Connector

Terminal

D164

1

Ground

6

Revision: 2008 October

2009 Murano

B2416 TOUCH SENSOR RH

DLK-77

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

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-379, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK TOUCH SENSOR RH GROUND CIRCUIT

Check continuity between automatic back door control unit harness connector and touch sensor RH harness
connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK TOUCH SENSOR RH

Refer to 

DLK-77, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace touch sensor RH. Refer to 

DLK-364, "TOUCH SENSOR : Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003625821

1.

CHECK TOUCH SENSOR RH

Check touch sensor RH.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace touch sensor RH. Refer to 

DLK-364, "TOUCH SENSOR : Removal and Installation"

.

Automatic back door control unit

Touch sensor RH

Continuity 

 Connector

Terminal

Connector

Terminal

B8

16

D164

1

Existed

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B8

16

Not existed

Automatic back door control unit

Touch sensor RH

Continuity 

 Connector

Terminal

 Connector

Terminal

B8

15

D164

2

Existed

Terminal

 Condition

Resistance 

(Approx.)

Touch sensor RH

1

2

Touch sensor RH

Detect obstruction

120 

Ω

 or less

Other than above

1 k

Ω

 

±

 10%

Revision: 2008 October

2009 Murano

DLK-78

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2417 TOUCH SENSOR LH

B2417 TOUCH SENSOR LH

Description

INFOID:0000000003646508

The touch sensor LH is installed on the light edge of the back door, and it detects any trapped foreign material
in the back door during the auto close operation and at the closure operation.

DTC Logic

INFOID:0000000003430080

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Check “Self diagnostic result” with CONSULT-III. 

Is DTC detected?

YES

>> Go to 

DLK-78, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625822

1.

CHECK TOUCH SENSOR RH SIGNAL

Check touch sensor LH (“TOUCH SEN LH”) in Data Monitor mode.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect touch sensor LH connector.

3.

Check voltage between touch sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK TOUCH SENSOR LH CIRCUIT

1.

Disconnect automatic back door control unit.

2.

Check continuity between automatic back door control unit harness connector and touch sensor LH har-
ness connector.

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2417

TOUCH SENSOR LH

When the automatic back door control unit detects 
the open circuit of the touch sensor LH.

• Touch sensor LH
• Harness or connectors

(Touch sensor LH circuit is open)

• Automatic back door control unit

Monitor item

Condition

Status

 TOUCH SEN LH

Touch sensor LH

Other than below

OFF

Detect obstruction

ON

(+)

(–)

Voltage (V)

(Approx.)

Touch sensor LH

Connector

Terminal

D165

1

Ground

6

Revision: 2008 October

2009 Murano

B2417 TOUCH SENSOR LH

DLK-79

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

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-379, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK TOUCH SENSOR LH GROUND CIRCUIT

Check continuity between automatic back door control unit harness connector and touch sensor LH harness
connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace harness.

5.

CHECK TOUCH SENSOR LH

Refer to 

DLK-79, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace touch sensor LH. Refer to 

DLK-364, "TOUCH SENSOR : Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003625823

1.

CHECK TOUCH SENSOR LH

Check touch sensor LH.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace touch sensor LH. Refer to 

DLK-364, "TOUCH SENSOR : Removal and Installation"

.

Automatic back door control unit

Touch sensor LH 

Continuity 

 Connector

Terminal

 Connector

Terminal

B8

14

D165

1

Existed

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B8

14

Not existed

Automatic back door control unit

Touch sensor LH

Continuity 

Connector

Terminal

Connector

Terminal

B8

15

D165

2

Existed

Terminal

 Condition

Resistance 

(Approx.)

Touch sensor LH

1

2

Touch sensor LH

Detect obstruction

120 

Ω

 or less

Other than above

1 k

Ω

 

±

 10%

Revision: 2008 October

2009 Murano

DLK-80

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2418 CLUTCH POWER SUPPLY CIRCUIT

B2418 CLUTCH POWER SUPPLY CIRCUIT

Description

INFOID:0000000003430076

The clutch operates by the power supplied from the automatic back door control unit. It performs the duty con-
trol of the power supply to control the operation speed of the back door.

DTC Logic

INFOID:0000000003430077

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-III.

Is DTC detected?

YES

>> Go to 

DLK-80, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625824

1.

CHECK CLUTCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect automatic back door control unit connector and automatic back door unit connector.

3.

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

4.

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

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness.

2.

CHECK CLUTCH

1.

Connect automatic back door control unit connector and automatic back door unit connector.

2.

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

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2418

CLUTCH POWER 
SUPPLY CIRCUIT

When the automatic power back door control unit 
detects any of the following conditions just after the 
open/close operation
• Clutch power supply circuit is shorted.
• Clutch is shorted.

• Clutch
• Harness or connectors

(Clutch circuit is shorted)

• Automatic back door control unit

Automatic back door control unit

Automatic back door unit

Continuity 

Connector

Terminal

 Connector

Terminal

B7

33

B76

3

Existed

Automatic back door control unit

Ground

Continuity 

 Connector

Terminal

B7

33

Not existed

Revision: 2008 October

2009 Murano

B2418 CLUTCH POWER SUPPLY CIRCUIT

DLK-81

< COMPONENT 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

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> Replace automatic back door unit. Refer to 

DLK-379, "Removal and Installation"

.

(+)

(–)

Condition

Voltage (V)

(Approx.)

Automatic back door control unit

Connector

Terminal

B7

33

Ground

Automatic back 
door

Active

Other than 
above

0

JMKIA1866ZZ

Revision: 2008 October

2009 Murano

DLK-82

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

B2419 OPEN SWITCH

B2419 OPEN SWITCH

Description

INFOID:0000000003430097

The open switch is integrated in the door lock assembly, and it detects the open condition of the back door
lock.

DTC Logic

INFOID:0000000003430098

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-III.

Is DTC detected?

YES

>> Go to 

DLK-82, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003625825

1.

CHECK OPEN SWITCH SIGNAL

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 2.

2.

CHECK AUTOMATIC BACK DOOR CONTROL UNIT OUTPUT SIGNAL

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?

DTC No.

Trouble diagnosis 

name

DTC detecting condition

Possible cause

B2419

OPEN SWITCH

When the automatic power back door control unit 
detects any of the following conditions
• The change of open switch cannot be detected 

for 1 second or more after starting the closure 
open output for the 3rd time in a row

• The change of open switch cannot be detected 

for 0.5 second or more after starting the closure 
close output for the 3rd time in a row

• The condition that the open switch is in the ON 

position and the close switch is in the OFF posi-
tion is detected when starting the closure open/
close output for the 3rd time in a row

• Open switch
• Harness or connectors

(Open switch circuit is open or 
shorted)

• Automatic back door control unit

Monitor item

Condition

Status

OPEN SW

Back door lock

Fully closed/Half latch

OFF

Open

ON

(+)

(–)

Voltage (V)

(Approx.)

Back door lock assembly

 Connector

Terminal

D179

4

Ground

Battery voltage

Revision: 2008 October

2009 Murano

B2419 OPEN SWITCH

DLK-83

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK OPEN SWITCH CIRCUIT

1.

Disconnect automatic back door control unit and back door lock assembly 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-379, "Removal and Installation"

.

NO

>> Repair or replace harness.

4.

CHECK OPEN 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 back door lock assembly ground circuit.

5.

CHECK OPEN SWITCH

Refer to 

DLK-83, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace back door lock assembly. Refer to 

DLK-361, "DOOR LOCK : Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003625826

COMPONENT INSPECTION

1.

CHECK OPEN SWITCH

Check back door lock assembly (open switch).

Is the inspection result normal?

YES

>> INSPECTION END

Automatic back door control unit

 Back door lock assembly

Continuity 

Connector

Terminal

Connector

Terminal

B8

20

D179

4

Existed

Automatic back door control unit

Ground

Continuity 

Connector

Terminal

B8

20

Not existed

Back door lock assembly 

Ground

Continuity 

Connector

Terminal

D179

8

Existed

Terminal

Condition

Continuity

Back door lock assembly (open switch)

4

8

Back door lock

Open

Existed

Fully closed/Half latch

Not existed

Revision: 2008 October

2009 Murano

 

 

 

 

 

 

 

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