Nissan Pathfinder (2008 year). Manual - part 144

DOOR LOCK AND UNLOCK SWITCH

DLK-53

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

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-53, "PASSENGER SIDE : Diagnosis Procedure"

.

PASSENGER SIDE : Diagnosis Procedure

INFOID:0000000001563510

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

Check ("POWER WINDOW DOWN") in ACTIVE TEST mode for "MULTI REMOTE ENT" with CONSULT–II.

Is the inspection normal?

YES

>> GO TO 3.

NO

>> Replace BCM. Refer to 

BCS-54, "Removal and Installation"

.

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

When "ACTIVE TEST" is performed, the front windows 
should be lowered.

DLK-54

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR LOCK AND UNLOCK SWITCH

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.

Is the inspection normal?

YES

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

NO

>> Repair or replace harness.

11 - Ground

: Continuity should exist.

LIIA1140E

22 - 16

: Continuity should exist.

LIIA0395E

KEY CYLINDER SWITCH

DLK-55

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

KEY CYLINDER SWITCH

Description

INFOID:0000000001563511

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:0000000001563512

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-55, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001563513

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

DLK-56

< COMPONENT DIAGNOSIS >

[WITH 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-190, "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

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

DLK-57

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

Description

INFOID:0000000001563514

Detects door lock condition of driver door.

Component Function Check

INFOID:0000000001563515

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-57, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000001563516

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

DLK-58

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

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-58, "Component Inspection"

.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-95, "Removal

and Installation"

.

Component Inspection

INFOID:0000000001563517

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-190, "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

DOOR REQUEST SWITCH

DLK-59

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

DOOR REQUEST SWITCH

FRONT DOOR REQUEST SWITCH

FRONT DOOR REQUEST SWITCH : Description

INFOID:0000000001563518

Transmits lock/unlock operation to Intelligent Key unit.

FRONT DOOR REQUEST SWITCH : Component Function Check

INFOID:0000000001563519

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-59, "FRONT DOOR REQUEST SWITCH : Diagnosis Procedure"

.

FRONT DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000001563520

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

DLK-60

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR REQUEST SWITCH

4.

Check continuity between Intelligent Key unit harness connector
(A) M70 terminals 5 (driver door), 25 (passenger door) and
ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness between Intelligent Key unit and front door request switch.

3.

CHECK FRONT DOOR REQUEST SWITCH GROUND CIRCUIT

Check continuity between front door request switch harness connector D16 (driver door), D116 (passenger
door) terminal 1 and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace door request switch ground circuit.

4.

CHECK FRONT DOOR REQUEST SWITCH OPERATION

Refer to 

DLK-60, "FRONT DOOR REQUEST SWITCH : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door request switch.

5.

CHECK FRONT DOOR REQUEST SWITCH SIGNAL

1.

Connect Intelligent Key unit connector.

2.

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

Is the inspection result normal?

YES

>> Refer to Intermittent Incident.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-95, "Removal and Installation"

.

FRONT DOOR REQUEST SWITCH : Component Inspection

INFOID:0000000001563521

1.

CHECK FRONT DOOR REQUEST SWITCH OPERATION

1.

Turn ignition switch OFF.

Driver side

5 - 2

: Continuity should exist.

Passenger side

25 - 2

: Continuity should exist.

5 - Ground

: Continuity should not exist.

25 - Ground

: Continuity should not exist.

ALKIA1188ZZ

1 - Ground

: Continuity should exist.

ALKIA1189ZZ

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