Infiniti G35 (V35). Manual - part 591

LT-44

DAYTIME LIGHT SYSTEM

32

GY

Combination switch output 5

ON

Lighting, 
turn, wiper 
switch 
(Wiper 
intermit-
tent dial 
position 4)

OFF

Approx. 7.2 V

Front fog lamp 
switch (Operates 
only front fog lamp 
switch)

Approx. 1.0 V

33

L

Combination switch output 4

ON

Lighting, 
turn, wiper 
switch 
(Wiper 
intermit-
tent dial 
position 4)

OFF

Approx. 7.2 V

Lighting switch 
AUTO

Approx. 1.2 V

34

PU

Combination switch output 3

ON

Lighting, 
turn, wiper 
switch 
(Wiper 
intermit-
tent dial 
position 4)

OFF

Approx. 7.2 V

Lighting switch 
2ND

Approx. 1.2 V

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

PKIB4960J

PKIB4956J

PKIB4960J

PKIB4958J

PKIB4960J

PKIB4958J

DAYTIME LIGHT SYSTEM

LT-45

C

D

E

F

G

H

I

J

L

M

A

B

LT

Terminals and Reference Values for IPDM E/R

NKS0027N

How to Proceed With Trouble Diagnosis

NKS0027O

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-35, "System Description"

 .

3.

Perform the Preliminary Check. Refer to 

LT-46, "Preliminary Check"

 .

4.

Check symptom and repair or replace the cause of malfunction.

5.

Does the front fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.

6.

INSPECTION END

35

Y/R

Combination switch output 2

ON

Lighting, 
turn, wiper 
switch
(Wiper 
intermit-
tent dial 
position 4)

OFF

Approx. 7.2 V

Any of the condi-
tions below

●

Lighting switch 
2ND

●

Lighting switch 
PASSING
(Operates only 
PASSING 
switch)

Approx. 1.2 V

38

W/L

Ignition switch (ON) 

ON

—

Battery voltage

39

L

CAN - H

—

—

—

40

P

CAN - L

—

—

—

42

GY

Battery power supply

OFF

—

Battery voltage

52

B

Ground

ON

—

Approx. 0 V

55

W/R

Battery power supply

OFF

—

Battery voltage

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

PKIB4960J

PKIB4958J

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

36

W/G

Front fog lamp 
(RH) 

ON

Lighting switch must be in the 2ND position or 
AUTO position (LOW beam is ON) and the front fog 
lamp switch must be ON.

OFF

Approx. 0 V

ON

Battery voltage

37

SB

Front fog lamp 
(LH)

ON

OFF

Approx. 0 V

ON

Battery voltage

38 

B/R

Ground

ON

—

Approx. 0 V

48

L

CAN - H

—

—

—

49

P

CAN - L

—

—

—

60

B/R

Ground

ON

—

Approx. 0 V

LT-46

DAYTIME LIGHT SYSTEM

Preliminary Check

NKS0027P

CHECK POWER SUPPLY AND GROUND CIRCUIT

1. 

CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to 

LT-39, "Wiring Diagram — DTRL —"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse

or fusible link. Refer to 

PG-3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check voltage between BCM harness connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

18

Ignition switch ON or START position

1

Ignition switch ACC or ON position

6

IPDM E/R

Battery

88

(+)

(

−

)

Ignition switch position

OFF

ACC

ON

BCM

connector

Terminal 

M1

11

Ground

Approx. 0 V

Battery 
voltage

Battery 
voltage

38

Approx. 0 V

Approx. 0 V

Battery 
voltage

M2

42

Battery 
voltage

Battery 
voltage

Battery 
voltage

55 

Battery 
voltage

Battery 
voltage

Battery 
voltage

PKIB5197E

BCM 

connector

Terminal

Ground

Continuity

M2

52

Yes

PKIB5198E

DAYTIME LIGHT SYSTEM

LT-47

C

D

E

F

G

H

I

J

L

M

A

B

LT

CHECK PARKING BRAKE SWITCH CIRCUIT

1. 

CHECK BRAKE INDICATOR

1.

Turn ignition switch ON.

2.

When parking brake is made ON/OFF, it checks whether the brake indicator lamp of combination meter
lights up/puts out the light.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

2. 

CHECK PARKING BRAKE SWITCH SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between parking brake switch harness connector
and ground, when parking brake is released.

*1: with A/T, *2: with M/T

OK or NG

OK

>> GO TO 3

NG

>> Replace parking brake switch.

3. 

CHECK PARKING BRAKE SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect parking brake switch connector and combination
meter connector.

3.

Check continuity between combination meter harness connector
(A) M20 terminal 43 and parking brake switch harness connec-
tor (B) E110 

*1

 , B37

 *2

  terminal 1.

*1: with A/T, *2: with M/T

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

(+)

(

−

)

Condition

Voltage

Parking brake 

switch connector

Terminal 

E110

 *1

 ,

B37

 *2

1

Ground

Not released

Approx. 0 V

Released

Battery voltage

SKIA3117E

43 – 1

: Continuity should exist.

PKIC5976E