Nissan Pathfinder (2009 year). Manual - part 157

DOOR LOCK AND UNLOCK SWITCH

DLK-65

< 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 normal?

YES

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

NO

>> GO TO 2

2.

CHECK BCM OUTPUT SIGNAL

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 result normal?

YES

>> GO TO 3

NO

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

3.

CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

1.

Disconnect power window and door lock/unlock switch RH.

2.

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

DLK-66

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

BACK DOOR OPENER SWITCH

BACK DOOR OPENER SWITCH

Diagnosis Procedure

INFOID:0000000003938244

1.

CHECK BACK DOOR OPENER SWITCH

With CONSULT-III

Check back door opener switch (“BD/TR REQ SW”) in “DATA MONITOR” mode.

Without CONSULT-III

1.

Turn ignition switch OFF.

2.

Check voltage between Intelligent Key Unit connector M164 ter-
minal 24 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

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

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace back door opener switch ground cir-

cuit.

Monitor item

Condition

BD/TR REQ SW

Back door opener switch is pressed: ON

Back door opener switch is released: OFF

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M164

24

Ground

Back door opener switch 

is pressed

0

Back door opener switch 

is released

5

ALKIA1240ZZ

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

2 - Ground

: Continuity should exist.

WIIA1187E

2009 Pathfinder

BACK DOOR OPENER SWITCH

DLK-67

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

4.

CHECK BACK DOOR OPENER SWITCH CIRCUIT

1.

Disconnect Intelligent Key unit connector.

2.

Check continuity between Intelligent Key Unit harness connector M164 terminal 24 and back door opener
switch harness connector D511 terminal 1.

3.

Check continuity between Intelligent Key Unit harness connec-
tor M164 terminal 24 and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness between Intelligent Key Unit

and back door opener switch.

5.

CHECK BACK DOOR OPENER SWITCH SIGNAL

1.

Connect Intelligent Key Unit connector.

2.

Check voltage between back door opener switch harness connector D511 terminal 1 and ground.

Is the inspection result normal?

YES

>> Check condition of harness and connector.

NO

>> Replace Intelligent Key Unit. Refer to 

SEC-119,

"Removal and Installation"

.

24 - 1

: Continuity should exist.

24 - Ground

: Continuity should not exist.

ALKIA1241ZZ

1 - Ground

: Approx. 5v

WIIA1189E

2009 Pathfinder

DLK-68

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

KEY CYLINDER SWITCH

KEY CYLINDER SWITCH

Description

INFOID:0000000003938164

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:0000000003938165

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-68, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003938166

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

KEY CYLINDER SWITCH

DLK-69

< 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 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-200, "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

DLK-70

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

Description

INFOID:0000000003938167

Detects door lock condition of driver door.

Component Function Check

INFOID:0000000003938168

1.

CHECK FUNCTION

With CONSULT-III

Check door unlock sensor in DATA MONITOR mode.

Is the inspection result normal?

YES

>> Door unlock sensor is OK.

NO

>> Refer to 

DLK-70, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003938169

1.

CHECK UNLOCK SENSOR POWER SUPPLY

Check voltage between Intelligent Key unit connector terminal 28 and ground.

Is the inspection result normal?

YES

>> Front door lock assembly LH (door unlock sensor) is

OK.

NO

>> GO TO 2

2.

CHECK UNLOCK SENSOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect Intelligent Key unit and front door lock assembly LH
(door unlock sensor) connector.

3.

Check continuity between Intelligent Key unit harness connector
(A) M164 terminal 28 and front door lock assembly LH (door
unlock sensor) harness connector (B) D14 terminal 6.

4.

Check continuity between Intelligent Key unit harness connector
(A) M164 terminal 28 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between Intelligent Key unit and front door lock assembly LH (door

unlock sensor).

3.

CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly LH (door unlock sensor) harness connector D14 terminal 4
and ground.

Monitor item

Condition

DOOR STAT SW (DR DOOR STATE)

Front door lock (driver side) LOCK : OFF

Front door lock (driver side) UNLOCK : ON

Connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(-)

M164

28

Ground

Driver side door lock is locked

5

Driver side door lock is un-
locked

0

WIIA1190E

28 – 6

: Continuity should exist.

28 – Ground

: Continuity should not exist.

ALKIA1185ZZ

2009 Pathfinder

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

DLK-71

< 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

>> GO TO 4

NO

>> Repair or replace harness.

4.

CHECK INTELLIGENT KEY UNIT OUTPUT SIGNAL

1.

Connect Intelligent Key unit harness connector.

2.

Check voltage between Intelligent Key unit harness connector M164 terminal 28 and ground.

Is the inspection result normal?

YES

>> Refer to 

DLK-71, "Component Inspection"

.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-119,

"Removal and Installation"

.

Component Inspection

INFOID:0000000003938170

1.

CHECK DOOR UNLOCK SENSOR

Check door unlock sensor.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front lock assembly LH (door unlock sensor). Refer to 

DLK-200, "Removal and Installa-

tion"

.

4 – Ground

: Continuity should exist.

ALKIA1186ZZ

28 – Ground

: Approx. 5V

WIIA1193E

ALKIA1187ZZ

Terminal

Front door lock assembly LH condition

Continuity

Front door lock assembly LH

4

6

Unlock

Yes

Lock

No

2009 Pathfinder

DLK-72

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR REQUEST SWITCH

DOOR REQUEST SWITCH

FRONT DOOR REQUEST SWITCH

FRONT DOOR REQUEST SWITCH : Description

INFOID:0000000003938171

Transmits lock/unlock operation to Intelligent Key unit.

FRONT DOOR REQUEST SWITCH : Component Function Check

INFOID:0000000003938172

1.

CHECK FUNCTION

With CONSULT-III

Check door request switch "DR REQ SW" and "AS REQ SW" in DATA MONITOR mode.

Is the inspection result normal?

YES

>> Door request switch is OK.

NO

>> Refer to 

DLK-72, "FRONT DOOR REQUEST SWITCH : Diagnosis Procedure"

.

FRONT DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000003938173

1.

CHECK FRONT DOOR REQUEST SWITCH

With CONSULT-III

Check front door request switch (“DR REQ SW” or “AS REQ SW”) in “DATA MONITOR” mode.

Without CONSULT-III

1.

Turn ignition switch OFF.

2.

Check voltage between Intelligent Key unit harness connector
M70 terminals 5, 25 and ground.

Is the inspection result normal?

YES

>> Front door request switch is OK.

NO

>> GO TO 2

2.

CHECK FRONT DOOR REQUEST SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect Intelligent Key unit and front door request switch connectors.

3.

Check continuity between Intelligent Key unit harness connector (A) M70 terminals 5 (driver door), 25
(passenger door) and front door request switch harness connector (B) D16 (LH), D116 (RH) terminal 2.

Monitor item

Condition

DR REQ SW
AS REQ SW

Door request switch is pressed : ON

Door request switch is released : OFF

Monitor item

Condition

DR REQ SW
AS REQ SW

Front door request switch is pressed: ON

Front door request switch is released: OFF

Connector

Item

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M70

Front door re-
quest switch 
LH

5

Ground

Door request 

switch is 

pressed

↓

Door request 

switch is re-

leased

0

↓

Battery voltage

Front door re-
quest switch 
RH

25

WIIA1183E

2009 Pathfinder