Infiniti M35/M45 Y50. Manual - part 923

COMBINATION SWITCH

LT-237

C

D

E

F

G

H

I

J

L

M

A

B

LT

36

V

Combination 
switch output 1

ON

Lighting, turn, wiper 
switch
(Wiper dial position 4)

Any of several con-
ditions below

●

Turn signal switch 
right

●

Turn signal switch left

●

Front wiper switch 
MIST

●

Front wiper switch LO

●

Front washer switch

Approx. 1.2 V

OFF

(Wiper dial position 4)

Approx. 7.0 - 7.5 V

38

W

Ignition switch 

(ON) 

ON

—

Battery voltage

39

L

CAN 

−

 

H

—

—

—

40

P

CAN 

−

 

L

—

—

—

42

P

Battery power 
supply

OFF

—

Battery voltage

52

B

Ground

ON

—

Approx. 0 V

55

W

Battery power 
supply

OFF

—

Battery voltage

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

PKIB4958J

PKIB4960J

LT-238

COMBINATION SWITCH

CONSULT-II Functions (BCM)

NKS003S8

CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.

CONSULT-II BASIC OPERATION

Refer to 

GI-38, "CONSULT-II Start Procedure"

 .

DATA MONITOR
Operation Procedure

1.

Touch “COMB SW” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.

4.

When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the signals will be monitored.

5.

Touch “START”.

6.

Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.

Display Item List

BCM diagnosis part

Diagnosis mode

Description

COMB SW

DATA MONITOR

Displays BCM input data in real time.

ALL SIGNALS

Monitors all the signals.

SELECTION FROM MENU

Selects items and monitor them.

Monitor item name

Contents

TURN SIGNAL R

“ON/OFF”

Displays “turn right (ON)/other (OFF)” status, determined from lighting switch signal.

TURN SIGNAL L

“ON/OFF”

Displays “turn left (ON)/other (OFF)” status, determined from lighting switch signal.

HI BEAM SW

“ON/OFF”

Displays status (high beam switch: ON/others: OFF) of high beam switch judged from lighting 
switch signal.

HEAD LAMP SW 1

“ON/OFF”

Displays status (headlamp switch 1: ON/others: OFF) of headlamp switch 1 judged from lighting 
switch signal. 

HEAD LAMP SW 2

“ON/OFF”

Displays status (headlamp switch 2: ON/others: OFF) of headlamp switch 2 judged from lighting 
switch signal.

TAIL LAMP SW

“ON/OFF”

Displays status (lighting switch 1ST or 2ND position: ON/others: OFF) of lighting switch judged from 
lighting switch signal.

PASSING SW

“ON/OFF”

Displays status (flash-to-pass switch: ON/others: OFF) of flash-to-pass switch judged from lighting 
switch signal.

AUTO LIGHT SW

“ON/OFF”

Displays “auto light switch (ON)/other (OFF)” status, determined from lighting switch signal.

FR FOG SW

“ON/OFF”

Displays “front fog lamp switch (ON)/other (OFF)” status, determined from lighting switch signal.

FR WIPER HI

“ON/OFF”

Displays “front wiper HI (ON)/other (OFF)” status, determined from wiper switch signal.

FR WIPER LOW

“ON/OFF”

Displays “front wiper LOW (ON)/other (OFF)” status, determined from wiper switch signal.

FR WIPER INT

“ON/OFF”

Displays “front wiper INT (ON)/other (OFF)” status, determined from wiper switch signal.

FR WASHER SW

“ON/OFF”

Displays “front washer switch (ON)/other (OFF)” status, determined from wiper switch signal.

INT VOLUME

“1 - 7” 

Displays intermittent operation knob setting (1 - 7), determined from wiper switch signal.

COMBINATION SWITCH

LT-239

C

D

E

F

G

H

I

J

L

M

A

B

LT

Combination Switch Inspection

NKS003S9

1. 

SYSTEM CHECK

Referring to table below, check the system to which malfunctioning switch belongs.

>> Check the system to which malfunctioning switch belongs, and then GO TO 2.

2. 

SYSTEM CHECK

With CONSULT-II

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication. 

1.

Connect CONSULT-II, and select “COMB SW” on “SELECT
TEST ITEM” screen.

2.

Select “DATA MONITOR”.

3.

Select “START”, and confirm that other switches in malfunction-
ing system operate normally.
Example: When the HI BEAM switch is malfunctioning, confirm
that “TURN RH”, “HEAD LAMP 1” and “TAIL LAMP SW” in Sys-
tem 5, to which the HI BEAM switch belongs, turn ON-OFF nor-
mally.

Without CONSULT-II

Operating combination switch, and confirm that other switches in malfunctioning system operate normally.
Example: When the HI BEAM switch is malfunctioning, confirm that “TURN RH”, “HEAD LAMP 1” and “TAIL
LAMP SW” in System 5, to which HI BEAM switch belongs, turn ON-OFF normally.

Check results

Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch.
Other switches in malfunctioning system do not operate normally.>>GO TO 3.

System 1

System 2

System 3

System 4

System 5

—

FR WASHER

FR WIPER LO

TURN LH

TURN RH

FR WIPER HI

—

FR WIPER INT

PASSING

HEAD LAMP1

INT VOLUME 1

—

—

HEAD LAMP2

HI BEAM

—

INT VOLUME 3

AUTO LIGHT

—

LIGHT SW 1ST

INT VOLUME 2

—

—

FR FOG

—

SKIB4816E

LT-240

COMBINATION SWITCH

3. 

CHECK HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect BCM and combination switch connectors.

3.

Check for continuity between BCM harness connector (A) of the suspect system and the corresponding
combination switch connector (B).

4.

Check for continuity between each of BCM harness connector in suspect malfunctioning system and
ground.

OK or NG

OK

>> GO TO 4.

NG

>> Check harness between BCM and combination switch for open or short circuit.

Sus-

pect 

system

A

B

Continuity

Connector

Terminal

Connector

Terminal

1

M1

Input 1

6

M29

6

Yes

Output 1

36

1

2

Input 2

5

7

Output 2

35

2

3

Input 3

4

10

Output 3

34

3

4

Input 4

3

9

Output 4

33

4

5

Input 5

2

8

Output 5

32

5

Suspect 
system

BCM 

connector

Terminal

Ground

Continuity

1

M1

Input 1

6

No

Output 1

36

2

Input 2

5

Output 2

35

3

Input 3

4

Output 3

34

4

Input 4

3

Output 4

33

5

Input 5

2

Output 5

32

SKIB4819E

PKIA7506E