Infiniti FX35, FX50 (S51). Manual - part 1527

DOOR KEY CYLINDER SWITCH

PWC-169

< DTC/CIRCUIT DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-249, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) (key cylinder switch) harness connector and
ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Check front door lock assembly (driver side) (key cylinder switch).
Refer to 

PWC-169, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

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

DLK-269, "DOOR

LOCK : Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005248300

COMPONENT INSPECTION

1.

CHECK DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) (key cylinder switch) connector.

3.

Check front door lock assembly (driver side) (key cylinder switch).

Is the inspection result normal?

YES

>> INSPECTION END

NO

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

DLK-269, "DOOR

LOCK : Removal and Installation"

.

Power window main switch

Ground

Continuity 

Connector

Terminal

D8

4

Not existed

6

Front door lock assembly (driver side) (key cylinder switch)

Ground

Continuity 

Connector

Terminal

D15

4

Existed

Front door lock assembly (driver side) (key cylinder switch)

Key position

Continuity

Connector

Terminal

D15

5

4

Unlock

Existed

Neutral / Lock

Not existed

6

Lock

Existed

Neutral / Unlock

Not existed

PWC-170

< DTC/CIRCUIT DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

POWER WINDOW SERIAL LINK

POWER WINDOW SERIAL LINK

POWER WINDOW MAIN SWITCH

POWER WINDOW MAIN SWITCH : Description

INFOID:0000000005248301

Power window main switch, front power window switch (passenger side) and BCM transmit and receive the
signal by power window serial link.
The signal mentioned below is transmitted from BCM to power window main switch and front power window
switch (passenger side).
•  Keyless power window down signal
The signal mentioned below is transmitted from power window main switch to front power window switch (pas-
senger side).
• Front passenger side door window 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:0000000005248302

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

 With CONSULT-III

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

DLK-53, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-170, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000005248303

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect power window main switch connector.

3.

Check signal between power window main switch harness connector and ground with oscilloscope when
door lock and unlock switch (driver side and passenger side) is turned to “LOCK” or “UNLOCK”.

4.

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

Is the inspection result normal?

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

(+)

(–)

Signal

(Reference value)

Power window main switch

Connector

Terminal 

D8

14

Ground

JPMIA0013GB

POWER WINDOW SERIAL LINK

PWC-171

< DTC/CIRCUIT DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

YES

>> Replace power window main switch. Refer to 

PWC-136, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and power window main switch harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-83, "Exploded View"

.

NO

>> Repair or replace harness.

FRONT POWER WINDOW SWITCH (PASSENGER SIDE)

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Description

INFOID:0000000005248304

Power window main switch, front power window switch (passenger side) and BCM transmit and receive the
signal by power window serial link.
The signal mentioned below is transmitted from BCM to power window main switch and front power window
switch (passenger side).
•  Keyless power window down signal
The signal mentioned below is transmitted from power window main switch to front power window switch (pas-
senger side).
• Front passenger side door window operation signal
• Power window control by key cylinder switch signal
• Power window lock switch signal
• Retained power operation signal 

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Component Function 
Check

INFOID:0000000005248305

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

 With CONSULT-III

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

DLK-53, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-172, "FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Pro-

cedure"

.

BCM

Power window main switch

Continuity

Connector

Terminal

Connector

Terminal

M123

132

D8

14

Existed

BCM

Ground

Continuity 

Connector

Terminal

M123

132

Not existed

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

PWC-172

< DTC/CIRCUIT DIAGNOSIS >

[FRONT WINDOW ANTI-PINCH]

POWER WINDOW SERIAL LINK

FRONT POWER WINDOW SWITCH (PASSENGER SIDE) : Diagnosis Procedure

INFOID:0000000005248306

1.

CHECK POWER WINDOW SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front power window switch (passenger side) connector.

3.

Check signal between front power window switch (passenger side) harness connector and ground with
oscilloscope when door lock and unlock switch (driver side and passenger side) is turned to “LOCK” or
“UNLOCK”.

4.

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

Is the inspection result normal?

YES

>> Replace front power window switch (passenger side). Refer to 

PWC-137, "Removal and Installa-

tion"

.

NO

>> GO TO 2.

2.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and front power window switch (passenger side)
harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-83, "Exploded View"

.

NO

>> Repair or replace harness.

(+)

(–)

Signal

(Reference value)

Front power window switch (passenger side)

Connector

Terminal 

D38

16

Ground

JPMIA0013GB

BCM

Front power window switch (passenger side)

Continuity

Connector

Terminal

Connector

Terminal

M123

132

D38

16

Existed

BCM

Ground

Continuity 

Connector

Terminal

M123

132

Not existed