Nissan Pathfinder (2008 year). Manual - part 523

POWER WINDOW SERIAL LINK

PWC-37

< COMPONENT DIAGNOSIS >

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PWC

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POWER WINDOW SERIAL LINK

POWER WINDOW MAIN SWITCH

POWER WINDOW MAIN SWITCH : Description

INFOID:0000000001702382

Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and BCM
transmit and receive the signal by power window serial link.
The signal mentioned below is transmitted from BCM to main power window and door lock/unlock switch and
power window and door lock/unlock switch RH
•  Keyless power window down signal
The signal mentioned below is transmitted from main power window and door lock/unlock switch to power win-
dow and door lock/unlock switch RH
• Front door window RH operation signal
• Power window control by key cylinder switch signal
• Power window lock switch signal
• Retained power operation signal 

POWER WINDOW MAIN SWITCH : Component Function Check

INFOID:0000000001702383

1.

 CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

BCS-16, "COMMON ITEM : CONSULT-III Function (BCM - COMMON

ITEM)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-37, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000001702384

Power Window Serial Link Check

1.

 CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL

1.

Remove Intelligent Key or ignition key, and close front door LH
and RH.

2.

Check signal between BCM connector and ground with oscillo-
scope when door lock and unlock switch (LH and RH) is turned
to “LOCK” or “UNLOCK”.

3.

Check that signals which are shown in the figure below can be
detected during 10 second just after door lock and unlock switch
(LH and RH) is turned to “LOCK” or “UNLOCK”.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

LIIA0391E

PWC-38

< COMPONENT DIAGNOSIS >

POWER WINDOW SERIAL LINK

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> GO TO 2

2.

 CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM  and main power window and door lock/unlock
switch.

3.

Check continuity between BCM connector (A) and main power
window and door lock/unlock switch connector (B).

4.

Check continuity between BCM connector (A) and ground.

Is the inspection result normal?

YES

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

PWC-70, "Removal and Instal-

lation"

.

NO

>> Repair or replace harness.

FRONT POWER WINDOW SWITCH

FRONT POWER WINDOW SWITCH : Description

INFOID:0000000001702385

Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and BCM
transmit and receive the signal by power window serial link.
The signal mentioned below is transmitted from BCM to main power window and door lock/unlock switch and
power window and door lock/unlock switch RH
• Keyless power window down signal
The signal mentioned below is transmitted from main power window and door lock/unlock switch to power win-
dow and door lock/unlock switch RH
• Front door window RH operation signal
• Power window control by key cylinder switch signal
• Retained power operation signal 
• Power window lock switch signal

FRONT POWER WINDOW SWITCH : Component Function Check

INFOID:0000000001702386

1.

 CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH OUTPUT SIGNAL

Terminal

Signal

(Reference value)

(+)

(–)

BCM connector

Terminal 

M18

22

Ground

PIIA2344E

BCM connector

Terminal

Main power window and door 

lock/unlock switch connector

Terminal

Continuity

M18 (A)

22

D7 (B)

14

Yes

ALKIA1026ZZ

BCM connector

Terminal

Ground

Continuity 

M18 (A)

22

No

POWER WINDOW SERIAL LINK

PWC-39

< COMPONENT DIAGNOSIS >

C

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A

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PWC

N

O

P

Check (“CDL LOCK SW ”, “CDL UNLOCK SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

BCS-17, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-39, "FRONT POWER WINDOW SWITCH : Diagnosis Procedure"

.

FRONT POWER WINDOW SWITCH : Diagnosis Procedure

INFOID:0000000001702387

Power Window Serial Link Check

1.

 CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH

1.

Remove Intelligent Key or ignition key, and close the front door
LH and RH.

2.

Check signal between BCM connector and ground with oscillo-
scope when door lock and unlock switch (LH and RH) is turned
to “LOCK” or “UNLOCK”.

3.

Check that signals which are shown in the figure below can be
detected during 10 second just after door lock and unlock switch
(LH and RH) is turned to “LOCK” or “UNLOCK”.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> GO TO 2

2.

 CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM.

3.

Check continuity between BCM connector (A) and power win-
dow and door lock/unlock switch RH connector (B).

4.

Check continuity between BCM connector (A) and ground.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

Terminal

Signal

(Reference value)

(+)

(–)

BCM connector

Terminal 

M18

2

Ground

LIIA0391E

PIIA2344E

BCM connector

Terminal

Power window and door 

lock/unlock switch RH con-

nector

Terminal

Continuity

M18 (A)

22

D105 (B)

16

Yes

ALKIA1027ZZ

PWC-40

< COMPONENT DIAGNOSIS >

POWER WINDOW SERIAL LINK

Is the inspection result normal?

YES

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

PWC-70, "Removal and Instal-

lation"

.

NO

>> Repair or replace harness.

BCM connector

Terminal

Ground

Continuity 

M18 (A)

22

No

POWER WINDOW LOCK SWITCH

PWC-41

< COMPONENT DIAGNOSIS >

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POWER WINDOW LOCK SWITCH

Description

INFOID:0000000001702388

Ground circuit of main power window and door lock/unlock switch shuts off if power window lock switch of
main power window and door lock/unlock switch is operated. This inhibits all operation, except for the main
switch.

Component Function Check

INFOID:0000000001702389

1.

 CHECK POWER WINDOW LOCK SIGNAL

Exchanges for a normal main power window and door lock/unlock switch, and operation is checked.

Does power window lock operate?

YES

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

PWC-70, "Removal and Instal-

lation"

.

NO

>> Check condition of harness and connector.

PWC-42

< ECU DIAGNOSIS >

BCM (BODY CONTROL MODULE)

ECU DIAGNOSIS

BCM (BODY CONTROL MODULE)

Reference Value

INFOID:0000000001702400

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

TERMINAL LAYOUT

Refer to 

BCS-41, "Terminal Layout"

.

PHYSICAL VALUES

Refer to 

BCS-41, "Physical Values"

.

Monitor Item

Condition

Value/Status

DOOR SW-DR

Front door LH closed

OFF

Front door LH opened

ON

DOOR SW-AS

Front door RH closed

OFF

Front door RH opened

ON

KEY CYL LK-SW

Other than front door key cylinder LH LOCK position

OFF

Front door key cylinder LH LOCK position

ON

KEY CYL UN-SW

Other than front door key cylinder LH UNLOCK position

OFF

Front door key cylinder LH UNLOCK position

ON

KEY CYL SW-TR

NOTE:
The item is indicated, but not monitored. 

OFF

POWER WINDOW MAIN SWITCH

PWC-43

< ECU DIAGNOSIS >

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POWER WINDOW MAIN SWITCH

Reference Value 

INFOID:0000000001702401

TERMINAL LAYOUT

PHYSICAL VALUES

MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH

LIIA2455E

Terminal No.

(Wire color)

Description

Condition

Voltage [V]

(Approx.)

+

–

Signal name 

Input/

Output

1

(R/Y)

Ground

Rear power window motor LH 
UP signal

Output

When rear LH switch in 
power window main switch 
is operated UP.

Battery voltage

2

(BR)

Ground

Encoder ground

—

—

0

3

(LG)

Ground

Rear power window motor LH 
DOWN signal

Output

When rear LH switch in 
power window main switch 
is operated DOWN.

Battery voltage

4

(SB)

Ground

Door key cylinder switch LH
LOCK signal

Input

Key position
(Neutral 

→

 Locked)

5 

→

 0

5

(P)

Ground

Rear power window motor RH 
DOWN signal

Output

When rear RH switch in 
power window main switch 
is operated DOWN.

Battery voltage

6

(R/W)

Ground

Door key cylinder switch LH
UNLOCK signal

Input

Key position
(Neutral 

→

 Unlocked)

5 

→

 0

7

(Y)

Ground

Rear power window motor RH 
UP signal

Output

When rear RH switch in 
power window main switch 
is operated UP.

Battery voltage

8

(O)

11

Front door power window mo-
tor LH UP signal

Output

When front LH switch in
power window main switch 
is operated UP.

 Battery voltage

9

(Y)

2

Encoder pulse signal 2

Input

When power window mo-
tor operates.

JMKIA0070GB

PWC-44

< ECU DIAGNOSIS >

POWER WINDOW MAIN SWITCH

10

(W/R)

Ground

RAP signal

Input

IGN SW ON

Battery voltage

Within 45 second after ig-
nition switch is turned to 
OFF.

Battery voltage

When front LH or RH door 
is opened during retained 
power operation.

0

11

(GR)

8

Front door power window mo-
tor LH DOWN signal

Output

When front LH switch in 
power window main switch 
is operated DOWN.

 Battery voltage

13

(LB)

2

Encoder pulse signal 1

Input

When power window mo-
tor operates.

14

(V)

Ground

Power window serial link

Input/

Output

IGN SW ON or power win-
dow timer operating.

15

(W/R)

Ground

Encoder power supply

Output

When ignition switch ON or 
power window timer oper-
ates.

10

17

(B)

Ground

Ground

—

—

0

19

(L)

Ground

Battery power supply

Input

—

Battery voltage

Terminal No.

(Wire color)

Description

Condition

Voltage [V]

(Approx.)

+

–

Signal name 

Input/

Output

JMKIA0070GB

JPMIA0013GB