Infiniti G37 Coupe. Manual - part 1022

 

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Infiniti G37 Coupe. Manual - part 1022

 

 

DOOR KEY CYLINDER SWITCH

PWC-29

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

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

DLK-234, "OUTSIDE HAN-

DLE : Removal and Installation"

.

Terminal

Key position

Continuity

Driver side door lock assembly (key cylinder switch) 

connector

4

Unlock

Existed

Neutral / Lock

Not existed

6

Lock

Existed

Neutral / Unlock

Not existed

PWC-30

< COMPONENT DIAGNOSIS >

POWER WINDOW SERIAL LINK

POWER WINDOW SERIAL LINK

POWER WINDOW MAIN SWITCH

POWER WINDOW MAIN SWITCH : Description

INFOID:0000000001694023

Power window main switch, power window sub-switch, 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, power window sub-
switch.
•  Keyless power window down signal
The signal mentioned below is transmitted from power window main switch to power window sub-switch.
• 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:0000000001694024

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

BCS-14, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

 .

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-30, "POWER WINDOW MAIN SWITCH : Diagnosis Procedure"

.

POWER WINDOW MAIN SWITCH : Diagnosis Procedure

INFOID:0000000001694025

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

1.

 Door of driver side and passenger side is closed.

2.

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

3.

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

>> GO TO 2.

NO

>> GO TO 3.

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

Terminal

Signal

(Reference value)

(+)

(–)

BCM connector

Terminal 

M123

132

Ground

JPMIA0013GB

POWER WINDOW SERIAL LINK

PWC-31

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

PWC

N

O

P

2.

CHECK BCM OUTPUT SIGNAL

Check power window serial link (“POWER WINDOW DOWN”) in “ACTIVE TEST” mode with CONSULT-III.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace BCM. Refer to 

BCS-79, "Exploded View"

.

3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and power window main switch connector.

3.

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

4.

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-92, "Removal and Installation"

NO

>> Repair or replace harness.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END 

POWER WINDOW SUB-SWITCH

POWER WINDOW SUB-SWITCH : Description

INFOID:0000000001694026

Power window main switch, power window sub-switch and BCM transmit and receive the signal by power win-
dow serial link.
The signal mentioned below is transmitted from BCM to power window main switch, power window sub-
switch.
•  Keyless power window down signal
The signal mentioned below is transmitted from power window main switch to power window sub-switch.
• 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 SUB-SWITCH : Component Function Check

INFOID:0000000001694027

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 

BCS-14, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Test item

Description

POWER WINDOW DOWN

ON

Driver side window and passenger side window

OPEN

BCM connector

Terminal

Power window main switch

connector

Terminal

Continuity

M123

132

D8

12

Existed

BCM connector

Terminal

Ground

Continuity 

M123

132

Not existed

Monitor item

Condition

CDL LOCK SW 

LOCK

: ON

UNLOCK

: OFF

PWC-32

< COMPONENT DIAGNOSIS >

POWER WINDOW SERIAL LINK

Is the inspection result normal?

YES

>> Power window serial link is OK.

NO

>> Refer to 

PWC-32, "POWER WINDOW SUB-SWITCH : Diagnosis Procedure"

.

POWER WINDOW SUB-SWITCH : Diagnosis Procedure

INFOID:0000000001713388

1.

CHECK POWER WINDOW SWITCH OUTPUT SIGNAL

1.

Door of driver side and passenger side is closed.

2.

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

3.

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

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK BCM OUTPUT SIGNAL

Check power window serial link (“POWER WINDOW DOWN”) in “ACTIVE TEST” mode  with CONSULT-III.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace BCM. Refer to 

BCS-79, "Exploded View"

.

3.

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and power window sub-switch connector.

3.

Check continuity between BCM connector and power window sub-switch connector.

4.

Check continuity between BCM connector and ground.

Is the inspection result normal?

CDL UNLOCK SW 

LOCK

: OFF

UNLOCK

: ON

Monitor item

Condition

Terminal

Signal

(Reference value)

(+)

(–)

BCM connector

Terminal 

M123

132

Ground

JPMIA0013GB

Test item

Description

POWER WINDOW DOWN

ON

Driver side window and passenger side window

OPEN

BCM connector

Terminal

Power window sub-switch

connector

Terminal

Continuity

M123

132

D38

16

Existed

BCM connector

Terminal

Ground

Continuity 

M123

132

Not existed

 

 

 

 

 

 

 

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