Nissan Pathfinder (2010 year). Manual - part 146

KEY CYLINDER SWITCH

DLK-67

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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KEY CYLINDER SWITCH

Description

INFOID:0000000005259896

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:0000000005259897

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-67, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005259898

Regarding Wiring Diagram information, refer to 

DLK-131, "Wiring Diagram — POWER DOOR LOCK SYS-

TEM —"

.

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?

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

2010 Pathfinder

DLK-68

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

KEY CYLINDER SWITCH

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).

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-199, "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

2010 Pathfinder

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

DLK-69

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

Description

INFOID:0000000005259899

Detects door lock condition of driver door.

Component Function Check

INFOID:0000000005259900

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-69, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005259901

Regarding Wiring Diagram information, refer to 

DLK-149, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

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

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

2010 Pathfinder

DLK-70

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

FRONT DOOR LOCK ACTUATOR LH (DOOR UNLOCK SENSOR)

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.

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-70, "Component Inspection"

.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-118,

"Removal and Installation"

.

Component Inspection

INFOID:0000000005259902

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-199, "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

2010 Pathfinder

DOOR REQUEST SWITCH

DLK-71

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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DOOR REQUEST SWITCH

FRONT DOOR REQUEST SWITCH
FRONT DOOR REQUEST SWITCH : Description

INFOID:0000000005259903

Transmits lock/unlock operation to Intelligent Key unit.

FRONT DOOR REQUEST SWITCH : Component Function Check

INFOID:0000000005259904

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-71, "FRONT DOOR REQUEST SWITCH : Diagnosis Procedure"

.

FRONT DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000005259905

Regarding Wiring Diagram information, refer to 

DLK-149, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

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.

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

2010 Pathfinder

DLK-72

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR REQUEST SWITCH

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.

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-73, "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 

GI-37, "Intermittent Incident"

.

NO

>> Replace Intelligent Key unit. Refer to 

SEC-118, "Removal and Installation"

.

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

2010 Pathfinder

DOOR REQUEST SWITCH

DLK-73

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

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FRONT DOOR REQUEST SWITCH : Component Inspection

INFOID:0000000005259906

1.

CHECK FRONT DOOR REQUEST SWITCH OPERATION

1. Turn ignition switch OFF.

2. Disconnect front door request switch connector.

3. Check continuity between front door request switch terminals 1

and 2.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Replace front door request switch.

BACK DOOR REQUEST SWITCH
BACK DOOR REQUEST SWITCH : Description

INFOID:0000000005259907

Transmits lock/unlock operation to Intelligent Key unit.

BACK DOOR REQUEST SWITCH : Component Function Check

INFOID:0000000005259908

1.

CHECK FUNCTION

With CONSULT-III

Check door request switch "BD/TR REQ SW" in DATA MONITOR mode.

Is the inspection result normal?

YES

>> Back door request switch is OK.

NO

>> Refer to 

DLK-73, "BACK DOOR REQUEST SWITCH : Diagnosis Procedure"

.

BACK DOOR REQUEST SWITCH : Diagnosis Procedure

INFOID:0000000005259909

Regarding Wiring Diagram information, refer to 

DLK-149, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK BACK DOOR REQUEST SWITCH

With CONSULT-III

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

Without CONSULT-III

1. Turn ignition switch OFF.

Component

Terminals

Condition

Continuity

Front door request 
switch (LH or RH)

1

2

Front door request 
switch is pressed

Yes

Front door request 
switch is released

No

ALKIA1190ZZ

Monitor item

Condition

BD/TR REQ SW

Back door request switch is pressed : ON

Back door request switch is released : OFF

Monitor item

Condition

BD/TR REQ SW

Back door request switch is pressed: ON

Back door request switch is released: OFF

2010 Pathfinder

DLK-74

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

DOOR REQUEST SWITCH

2. Check voltage between Intelligent Key unit harness connector

M164 terminal 29 and ground.

Is the inspection result normal?

YES

>> Back door request switch is OK.

NO

>> GO TO 2

2.

CHECK BACK DOOR REQUEST SWITCH CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect Intelligent Key unit and back door request switch connectors.

3. Check continuity between Intelligent Key unit harness connector (A) M164 terminal 29 and back door

request switch harness connector (B) D552 terminal 1.

4. Check continuity between Intelligent Key unit harness connector

(A) M164 terminal 29 and  ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between Intelligent Key unit

and back door request switch.

3.

CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT

Check continuity between back door request switch harness connector D552 terminal 2 and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

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

cuit.

4.

CHECK BACK DOOR REQUEST SWITCH OPERATION

Refer to 

DLK-75, "BACK DOOR REQUEST SWITCH : Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Replace back door request switch.

5.

CHECK BACK DOOR REQUEST SWITCH SIGNAL

1. Connect Intelligent Key unit connector.

Connector

Item

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

M164

Back door re-
quest switch

29

Ground

Back door re-

quest switch is 

pressed

↓

Back door re-

quest switch is 

released

0

↓

5

WIIA1185E

29 - 1

: Continuity should exist.

29 - Ground

: Continuity should not exist.

WIIA1188E

2 - Ground

: Continuity should exist.

WIIA1187E

2010 Pathfinder