Nissan Pathfinder (2009 year). Manual - part 178

DOOR LOCK AND UNLOCK SWITCH

DLK-233

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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PASSENGER SIDE : Description

INFOID:0000000003938323

Transmits door lock/unlock operation to BCM.

PASSENGER SIDE : Component Function Check

INFOID:0000000003938324

1.

CHECK FUNCTION

With CONSULT-III

Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT-III.

Is the inspection result normal?

YES

>> Door lock and unlock switch is OK.

NO

>> Refer to 

DLK-233, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000003938325

1.

CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL

With CONSULT-III

Check power window and door lock/unlock switch RH ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MON-
ITOR mode in CONSULT–III.
• When power window and door lock/unlock switch RH is turned to LOCK:

• When power window and door lock/unlock switch RH is turned to UNLOCK:

Without CONSULT-III

1.

Remove key from ignition key cylinder.

2.

Using an oscilloscope, check the signal between BCM connector M18 terminal 22 and ground when
power window and door lock/unlock switch RH is turned to LOCK or UNLOCK.

3.

Make sure the signals which are shown in the figure below can be detected during 10 seconds just after
the power window and door lock/unlock switch RH is turned to LOCK or UNLOCK.

Is the inspection normal?

YES

>> Power window and door lock/unlock switch RH circuit is OK.

NO

>> GO TO 2

2.

CHECK BCM OUTPUT SIGNAL

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

CDL LOCK SW

:ON

CDL UNLOCK SW

:ON

Connector

Terminal

Voltage (V)

( + )

( – )

M18

22

Ground

PIIA6379E

PIIA1297E

2009 Pathfinder

DLK-234

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK AND UNLOCK SWITCH

1.

Turn ignition switch OFF.

2.

Using the vehicle operational Intelligent Key, press and hold the UNLOCK button for more than 3 sec-
onds.

Is the inspection normal?

YES

>> GO TO 3

NO

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

3.

CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect power window and door lock/unlock switch RH.

3.

Check continuity between power window and door lock/unlock
switch RH connector D105 terminal 11 and ground

Is the inspection normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect BCM.

2.

Check continuity between BCM connector M18 terminal 22 and
power window and door lock/unlock switch RH connector D105
terminal 16.

3.

Check continuity between BCM connector M18 terminal 22 and
ground.

Is the inspection normal?

YES

>> Replace power window and door lock/unlock switch RH.

NO

>> Repair or replace harness.

The front windows should be lowered.

11 - Ground

: Continuity should exist.

LIIA1140E

22 - 16

: Continuity should exist.

LIIA0395E

22 - Ground

: Continuity should not exist.

LIIA2359E

2009 Pathfinder

BACK DOOR OPENER SWITCH

DLK-235

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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BACK DOOR OPENER SWITCH

Diagnosis Procedure

INFOID:0000000004427446

1.

CHECK BACK DOOR OPENER SWITCH

With CONSULT-III

Check back door opener switch (“TRUNK OPNR SW”) in “DATA MONITOR” mode.

Without CONSULT-III

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector M18 terminal 30 and
ground.

Is the inspection result normal?

YES

>> Back door opener switch is OK.

NO

>> GO TO 2

2.

CHECK BACK DOOR OPENER SWITCH OPERATION

1.

Turn ignition switch OFF.

2.

Disconnect back door opener switch connector.

3.

Check continuity between back door opener switch terminals 1
and 2.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Replace back door opener switch.

3.

CHECK BACK DOOR OPENER SWITCH GROUND CIRCUIT

NOTE:
The passenger door must be unlocked during this step.
Check continuity between back door opener switch harness connector D510 terminal 2 and ground.

Monitor item

Condition

TRUNK OPNR SW

Back door opener switch is pressed: ON

Back door opener switch is released: OFF

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M18

30

Ground

Back door opener switch 

is pressed

0

Back door opener switch 

is released

5

ALKIA1713ZZ

Component

Terminals

Condition

Continuity

Back door 

opener 

switch

1

2

Back door opener switch is pressed

Yes

Back door opener switch is released

No

WIIA1186E

2009 Pathfinder

DLK-236

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

BACK DOOR OPENER SWITCH

Is the inspection result normal?

YES

>> GO TO 4

NO

>> GO TO 5

4.

CHECK BACK DOOR OPENER SWITCH CIRCUIT

1.

Disconnect BCM.

2.

Check continuity between BCM harness connector (A) M18 ter-
minal 30 and back door opener switch harness connector (B)
D510 terminal 1.

3.

Check continuity between BCM harness connector (A) M18 ter-
minal 30 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-59, "Removal and Installa-

tion"

.

NO

>> Repair or replace harness between BCM and back door opener switch.

5.

CHECK BACK DOOR OPENER SWITCH GROUND CIRCUIT

1.

Disconnect front door lock assembly RH (door unlock sensor).

2.

Check continuity between back door opener switch harness
connector (A) D510 terminal 2 and front door lock assembly RH
(door unlock sensor) connector (B) D103 terminal 3.

3.

Check continuity between back door opener switch harness
connector (A) D510 terminal 2 and ground.

Is the inspection result normal?

YES

>> GO TO 6

NO

>> Repair or replace harness.

6.

CHECK DOOR UNLOCK SENSOR CIRCUIT

1.

Check continuity between front door lock assembly RH (door
unlock sensor) connector D103 terminal 5 and ground.

Is the inspection result normal?

YES

>> Replace front door lock assembly RH (door unlock sen-

sor).

NO

>> Repair or replace harness for open.

2 - Ground

: Continuity should exist.

WIIA1187E

30 - 1

: Continuity should exist.

30 - Ground

: Continuity should not exist.

ALKIA1714ZZ

2 - 3

: Continuity should exist.

2 - Ground

: Continuity should not exist.

ALKIA1715ZZ

5 - Ground

: Continuity should exist.

ALKIA1734ZZ

2009 Pathfinder

KEY CYLINDER SWITCH

DLK-237

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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KEY CYLINDER SWITCH

Description

INFOID:0000000003938326

The main power window and door lock/unlock switch detects condition of the door key cylinder switch and
transmits to BCM as the LOCK or UNLOCK signal. 

Component Function Check

INFOID:0000000003938327

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check "KEY CYL LK-SW" AND "KEY CYL UN-SW" in DATA MONITOR mode for “POWER DOOR LOCK
SYSTEM” with CONSULT-III.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

DLK-237, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003938328

1.

CHECK DOOR KEY CYLINDER SWITCH LH

With CONSULT-III

Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in
DATA MONITOR mode with CONSULT–III.
• When key inserted in left front key cylinder is turned to LOCK:

• When key inserted in left front key cylinder is turned to UNLOCK:

Without CONSULT-III

Check voltage between main power window and door lock/unlock
switch connector D7 terminals 4, 6 and ground.

Is the inspection result normal?

YES

>> Key cylinder switch signal is OK.

NO

>> GO TO 2

2.

CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly LH (key cylinder switch).

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

KEY CYL LK-SW

: ON

KEY CYL UN-SW

: ON

Connector

Terminals

Condition of left front key cylinder

Voltage (V)

(Approx.)

(+)

(–)

D7

4

Ground

Neutral/Unlock

5

Lock

0

6

Neutral/Lock

5

Unlock

0

LIIA0566E

2009 Pathfinder

DLK-238

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

KEY CYLINDER SWITCH

3.

Check continuity between front door lock assembly LH (key cyl-
inder switch) connector (A) D14 terminal 4 and body ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH LH

Check continuity between front door lock assembly LH (key cylinder
switch) terminals.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Replace front door lock assembly LH (key cylinder switch). Refer to 

DLK-323, "Removal and

Installation"

.

4.

CHECK DOOR KEY CYLINDER HARNESS

Check continuity between main power window and door lock/unlock
switch connector (A) D7 terminals 4, 6 and front door lock assembly
LH (key cylinder switch) connector (B) D14 terminals 3, 5 and body
ground. 

Is the inspection result normal?

YES

>> Replace main power window and door lock/unlock switch.

NO

>> Repair or replace harness.

Connector

Terminals

Continuity

D14

4 – Ground

Yes

ALKIA1186ZZ

Terminals

Condition

Continuity

3 – 4

Key is turned to LOCK or neutral.

No

Key is turned to UNLOCK.

Yes

4 – 5

Key is turned to UNLOCK or neutral.

No

Key is turned to LOCK.

Yes

ALKIA1183ZZ

Connector

Terminals

Connector

Terminals

Continuity

A: Main 

power win-

dow and 

door lock/

unlock 

switch

4

B:  Front 

door lock 

assembly 

LH (key 
cylinder 

switch)

5

Yes

6

3

Yes

4, 6

Ground

No

ALKIA1184ZZ

2009 Pathfinder

DOOR LOCK ACTUATOR

DLK-239

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

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DOOR LOCK ACTUATOR

DRIVER SIDE

DRIVER SIDE : Description

INFOID:0000000003938332

Locks/unlocks the door with the signal from BCM.

DRIVER SIDE : Component Function Check

INFOID:0000000003938333

1.

CHECK FUNCTION

1.

Use CONSULT-III to perform Active Test "DOOR LOCK".

2.

Touch “ALL LOCK” or “ALL UNLOCK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-239, "DRIVER SIDE : Diagnosis Procedure"

.

DRIVER SIDE : Diagnosis Procedure

INFOID:0000000003938334

1.

CHECK DOOR LOCK ACTUATOR SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector M20 terminals 59, 65
and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> GO TO 3

2.

CHECK DOOR LOCK ACTUATOR HARNESS

1.

Disconnect BCM and front door lock assembly LH (actuator).

2.

Check continuity between BCM connector (A) M20 terminals 59,
65 and front door lock assembly LH (actuator) connector (B)
D14 terminals 1, 2. 

Is the inspection result normal?

YES

>> Replace front door lock assembly LH (actuator).

NO

>> Repair or replace harness.

3.

CHECK DOOR LOCK ACTUATOR HARNESS

1.

Disconnect BCM and front door lock assembly LH (actuator).

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M20

59

Ground

Driver door lock/unlock 
switch is turned to UN-
LOCK

0 

→

 Battery voltage

65

Driver door lock/unlock 
switch is turned to LOCK

0 

→

 Battery voltage

LIIA1046E

Connector

Terminals

Connector

Terminals

Continuity

M20

59

D14

2

Yes

65

1

ALKIA1191ZZ

2009 Pathfinder

DLK-240

< COMPONENT DIAGNOSIS >

[WITHOUT INTELLIGENT KEY SYSTEM]

DOOR LOCK ACTUATOR

2.

Check continuity between BCM connector M20 terminals 59, 65
and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

NO

>> Repair or replace harness.

PASSENGER SIDE

PASSENGER SIDE : Description

INFOID:0000000003938335

Locks/unlocks the door with the signal from BCM.

PASSENGER SIDE : Component Function Check

INFOID:0000000003938336

1.

CHECK FUNCTION

1.

Use CONSULT-III to perform Active Test DOOR LOCK.

2.

Touch “ALL LOCK” or “ALL UNLOCK” to check that it works normally.

Is the inspection result normal?

YES

>> Door lock actuator is OK.

NO

>> Refer to 

DLK-240, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000003938337

1.

CHECK DOOR LOCK ACTUATOR SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector M20 terminals 65, 66
and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> GO TO 3

2.

CHECK DOOR LOCK ACTUATOR HARNESS

1.

Disconnect BCM and front door lock assembly RH (door lock actuator).

Connector

Terminals

Continuity

M20

59

Ground

No

65

ALKIA0633ZZ

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M20

65

Ground

Door lock/unlock switch is 
turned to LOCK

0 

→

 Battery voltage 

for 300 ms

66

Door lock/unlock switch is 
turned to UNLOCK

LIIA1048E

2009 Pathfinder