Infiniti M35/M45 Y50. Manual — part 886

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-89

C

D

E

F

G

H

I

J

L

M

A

B

LT

Terminals and Reference Values for BCM

NKS003PE

CAUTION:

●

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

●

Turn wiper dial position to 4 except when checking waveform or voltage of wiper dial position.
Wiper dial position can be confirmed on CONSULT-II. Refer to

LT-238, "DATA MONITOR"

.

Terminal

No.

Wire

color

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

2

L/R

Combination
switch input 5

ON

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

Lighting switch HI beam
(Operates only HI beam
switch)

Approx. 1.0 V

Lighting switch 2ND

Approx. 2.0 V

OFF

Approx. 0 V

3

O/L

Combination
switch input 4

ON

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

Any of several con-
ditions below

●

Lighting switch 2ND

●

Lighting switch
PASSING (Operates
only PASSING
switch)

Approx. 1.0 V

OFF

Approx. 0 V

34

L

Combination
switch output 3

ON

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

Any of several con-
ditions below

●

Lighting switch 2ND

●

Lighting switch HI
beam (Operates only
HI beam switch)

Approx. 1.2 V

OFF

Approx. 7.0 - 7.5 V

PKIB4957J

PKIB4953J

PKIB4957J

PKIB4958J

PKIB4960J

LT-90

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

35

SB

Combination
switch output 2

ON

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

Any of several con-
ditions below

●

Lighting switch 2ND

●

Lighting switch
PASSING (Operates
only PASSING
switch)

Approx. 1.2 V

OFF

Approx. 7.0 - 7.5 V

37

LG

Key switch signal

OFF

Intelligent Key is inserted into key slot.

Battery voltage

Intelligent Key is removed from key slot.

Approx. 0 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

62

V

Front door switch
driver side signal

OFF

Front door switch
driver side

ON (open)

Approx. 0 V

OFF (closed)

Approx. 7.5 - 8.0 V

Terminal

No.

Wire

color

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

PKIB4958J

PKIB4960J

PKIB4960J

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-91

C

D

E

F

G

H

I

J

L

M

A

B

LT

Terminals and Reference Values for IPDM E/R

NKS003PF

NOTE:
Daytime running light is operating: Lighting switch in OFF position with engine running and parking brake is released.

How to Perform Trouble Diagnosis

NKS003PG

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to

LT-78, "System Description"

.

3.

Perform the Preliminary Check. Refer to

LT-92, "Preliminary Check"

.

4.

Check symptom and repair or replace the cause of malfunction.

5.

Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.

6.

INSPECTION END

Terminal

No.

Wire

color

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

20

R

Headlamp low (RH)

ON

Lighting switch 2ND position

OFF

Approx. 0 V

ON

Battery voltage

27

BR

Headlamp high (RH)

ON

Lighting switch HIGH or PASSING
position

OFF

Approx. 0 V

ON

Battery voltage

Daytime running light is operating

NOTE

Approx. 6.5 V

28

R/Y

Headlamp high (LH)

ON

Lighting switch HIGH or PASSING
position

OFF

Approx. 0 V

ON

Battery voltage

Daytime running light is operating

NOTE

Approx. 6.5 V

30

R/B

Headlamp low (LH)

ON

Lighting switch 2ND position

OFF

Approx. 0 V

ON

Battery voltage

38

B

Ground

ON

—

Approx. 0 V

49

L

CAN

−

H

—

—

—

50

P

CAN

−

L

—

—

—

51

B

Ground

ON

—

Approx. 0 V

58

SB

Daytime light relay
signal

ON

Daytime running light is operating

NOTE

Approx. 0 V

Daytime running light is not operating

Battery voltage

LT-92

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

Preliminary Check

NKS003PH

INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT

1.

CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to

LT-83, "Wiring Diagram — DTRL —"

.

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

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 No.

BCM

Battery

F

21

Ignition switch ON or START position

1

Daytime light relay

Battery

32

Terminals

Ignition switch position

(+)

(-)

OFF

ON

BCM

connector

Terminal

M1

38

Ground

Approx. 0 V

Battery voltage

M2

42

Battery voltage

Battery voltage

55

Battery voltage

Battery voltage

PKIB5199E

BCM connector

Terminal

Ground

Continuity

M2

52

Yes

SKIB5125E