Infiniti FX35 / FX45. Manual - part 802

COMBINATION SWITCH

LT-103

< SERVICE INFORMATION >

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CONSULT-III Functions (BCM)

INFOID:0000000001328367

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

35

W/G

Combination 
switch output 2

ON

Lighting, turn, 
wiper switch
(Wiper inter-
mittent dial po-
sition 4)

OFF

Approx. 7.2 V

Any of the conditions below
• Lighting switch 2ND
• Lighting switch PASSING

(Operates only PASSING switch)

• Front wiper switch INT
• Front wiper switch HI

Approx. 1.2 V

36

W/R

Combination 
switch output 1

ON

Lighting, turn, 
wiper switch
(Wiper inter-
mittent dial po-
sition 4)

OFF

Approx. 7.2 V

Any of the conditions below
• Turn signal switch to right
• Turn signal switch to left
• Front wiper switch MIST
• Front wiper switch LO
• Front washer switch

Approx. 1.2 V

38

W/L

Ignition switch 
(ON) 

ON

—

Battery voltage

39

L

CAN 

−

 

H

—

—

—

40

P

CAN 

−

 

L

—

—

—

42

L/R

Battery power 
supply

OFF

—

Battery voltage

49

B

Ground

ON

—

Approx. 0 V

52

B

Ground

ON

—

Approx. 0 V

55

G

Battery power 
supply

OFF

—

Battery voltage

Ter-

mi-
nal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Igni-

tion 

switch

Operation or condition

PKIB4960J

PKIB4958J

PKIB4960J

PKIB4958J

BCM diagnosis part

Diagnosis mode

Description

COMB SW

DATA MONITOR

Displays BCM input data in real time.

LT-104

< SERVICE INFORMATION >

COMBINATION SWITCH

CONSULT-III BASIC OPERATION

Refer to 

GI-34, "Description"

.

DATA MONITOR

Display Item List

NOTE:

This item is displayed, but cannot be monitored

Combination Switch Inspection

INFOID:0000000001381755

1.

SYSTEM CHECK

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

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

2.

SYSTEM CHECK

CONSULT-III DATA MONITOR

1.

Select “COMBI SW” of BCM data monitor item.

2.

Confirm that other switches in malfunctioning system operate normally.

Monitor item

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 2: 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.

LIGHT SW 1ST

“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.

RR FOG SW 

NOTE

“OFF”

—

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.

RR WIPER ON

“ON/OFF”

Displays “rear Wiper (ON)/Other (OFF)” status as judged from wiper switch signal.

RR WIPER INT

“ON/OFF”

Displays “rear Wiper INT (ON)/Other (OFF)” status as judged from wiper switch signal.

RR WASHER SW

“ON/OFF”

Displays “rear Washer Switch (ON)/Other (OFF)” status as judged from wiper switch signal.

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 LAMP 1

INT VOLUME 1

RR WASHER

—

HEAD LAMP

HI BEAM

RR WIPER INT

INT VOLUME 3

AUTO LIGHT

—

LIGHT SW 1

INT VOLUME 2

RR WIPER ON

—

FR FOG

—

COMBINATION SWITCH

LT-105

< SERVICE INFORMATION >

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Example: When the HI BEAM switch is malfunctioning, confirm that “TURN RH”, “HEAD LAMP 1” and
“LIGHT SW 1 ST” in System 5, to which the HI BEAM switch belongs, turn ON-OFF normally.

Without CONSULT-III

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 “LIGHT
SW 1 ST” 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.

3.

CHECK HARNESS BETWEEN COMBINATION SWITCH AND BCM

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and combination switch connector.

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

>>

Check BCM input/output signal of malfunctioning input/output.

• Input: GO TO 4.
• Output: GO TO 5.

NG

>> Repair harness or connector.

4.

CHECK BCM INPUT SIGNAL

Sus-

pect 

system

A

B

Continuity

Connector

Terminal

Connector

Terminal

1

M3

Input 1

6

M27

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

M3

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

PKID0105E

PKIA7506E

LT-106

< SERVICE INFORMATION >

COMBINATION SWITCH

1.

Connect BCM connector and combination switch connector.

2.

Turn ignition switch ON.

3.

Lighting switch and wiper switch are turned OFF.

4.

Set wiper intermittent dial position 4.

5.

Check BCM input terminal voltage waveform of suspect mal-
functioning system.

OK or NG

OK

>> Replace BCM. Refer to 

BCS-13, "Removal and Installation of BCM"

.

NG

>> Open circuit in combination switch, GO TO 6.

5.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector and combination switch connector.

2.

Turn ignition switch ON.

3.

Lighting switch and wiper switch are turned OFF.

4.

Set wiper intermittent dial position 4.

5.

Check BCM output terminal voltage waveform of suspect mal-
functioning system.

OK or NG

OK

>> Open circuit in combination switch, GO TO 6.

NG

>> Replace BCM. Refer to 

BCS-13, "Removal and Installation of BCM"

.

6.

CHECK COMBINATION SWITCH 

Referring to table below, perform combination switch inspection.

Suspect 

system

Terminals

Reference value

 (+)

(-)

BCM 

connector

Terminal

1

M3

6

Ground

Refer to 

LT-99, "Terminal and Ref-

erence Value for BCM"

.

2

5

3

4

4

3

5

2

PKID0106E

Suspect 

system

Terminals

Reference value

 (+)

(-)

BCM

 connector

Terminal

1

M3

36

Ground

Approx. 7.0 - 7.5V

2

35

3

34

4

33

5

32

PKID0107E

PKIB4960J

Procedure

1

2

3

4

5

6

7

Re-

place 

lighting 

switch

Confirm 
check 
results

OK

INSPECTION END

Confirm 
check 
results

OK

INSPECTION END

Confirm 
check 
results

OK

INSPECTION END

NG

Replace wiper switch

NG

Replace switch base

NG

Confirm symptom again