Infiniti M35/M45 Y50. Manual - part 869

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

LT-21

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Terminals and Reference Values for IPDM E/R

NKS003O5

How to Perform Trouble Diagnoses

NKS003O6

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-8, "System Description"

 .

3.

Perform the Preliminary Check. Refer to 

LT-22, "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

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

Termi-

nal No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

PKIB4960J

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

28 

R/Y

Headlamp high (LH)

ON

Lighting switch HIGH or 
PASSING position

OFF

Approx. 0 V

ON

Battery voltage

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

LT-22

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

Preliminary Check

NKS003O7

CHECK POWER SUPPLY AND GROUND CIRCUIT

1. 

CHECK FUSES AND FUSIBLE LINK

Check for blown fuses and fusible link.

Refer to 

LT-13, "Wiring Diagram — H/LAMP —"

 .

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.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

21

Ignition switch ON or START position

1

Ignition switch ACC or ON position

6

IPDM E/R

Battery

71

72

74

76

78

86

Terminal

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

PKIA5204E

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

LT-23

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3. 

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Repair harness or connector.

CONSULT-II Functions (BCM)

NKS003O8

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

NOTE:
Cannot change the setting for headlamp.

CONSULT-II BASIC OPERATION

Refer to 

GI-38, "CONSULT-II Start Procedure"

 .

DATA MONITOR
Operation Procedure

1.

Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.

2.

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

3.

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

4.

When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is selected, all the items 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 connector

Terminal

Ground

Continuity

M2

52

Yes

SKIB5125E

BCM diagnosis part

Diagnosis mode

Description

HEADLAMP

WORK SUPPORT

Changes the setting for each function.

NOTE

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending drive signal to them.

BCM

SELF-DIAG RESULTS

BCM performs self-diagnosis of CAN communication.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

ALL SIGNALS

Monitors all the signals.

SELECTION FROM MENU

Selects items and monitor them.

Monitor item

Contents

IGN ON SW

“ON/OFF”

Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch signal.

ACC ON SW

“ON/OFF”

Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.

KEY ON SW

“ON/OFF”

Displays “Intelligent Key inserted into key slot (ON)/Intelligent Key removed from key slot 
(OFF)” status judged from the key switch signal.

TURN SIGNAL R

“ON/OFF”

Displays status (turn right: ON/others: OFF) as judged from lighting switch signal.

TURN SIGNAL L

“ON/OFF”

Displays status (turn left: ON/others: OFF) as judged 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.

LT-24

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

NOTE:
This item is displayed, but cannot be monitored.

ACTIVE TEST
Operation Procedure

1.

Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch item to be tested and check operation of the selected item.

4.

During the operation check, touching “BACK” deactivates the operation.

Display Item List

NOTE:
This item is displayed, but cannot be tested.

HEAD LAMP SW 1

“ON/OFF”

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

HEAD LAMP SW 2

“ON/OFF”

Displays status (headlamp switch 2: ON/others: OFF) of headlamp switch 2 judged from light-
ing 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.

AUTO LIGHT SW

“ON/OFF”

Displays status of the lighting switch as judged from the lighting switch signal. (AUTO position: 
ON/other than AUTO position: OFF)

PASSING SW

“ON/OFF”

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

FR FOG SW

“ON/OFF”

Displays status (front fog lamp switch: ON/others: OFF) of front fog lamp switch judged from 
lighting switch signal.

DOOR SW - DR

“ON/OFF”

Displays status of the driver door as judged from the driver door switch signal. (door is open: 
ON/door is closed: OFF)

DOOR SW - AS

“ON/OFF”

Displays status of the passenger door as judged from the passenger door switch signal. (door 
is open: ON/door is closed: OFF)

DOOR SW - RR

“ON/OFF”

Displays status of the rear door as judged from the rear door switch (RH) signal. (door is open: 
ON/door is closed: OFF)

DOOR SW - RL

“ON/OFF”

Displays status of the rear door as judged from the rear door switch (LH) signal. (door is open: 
ON/door is closed: OFF)

BACK DOOR SW 

NOTE 

“OFF”

—

I - KEY LOCK

“ON/OFF”

Displays “locked (ON)/other (OFF)” status, determined from lock signal.

OPTICAL SENSOR

 “0 - 5V” 

Displays “outside brightness (close to 5 V when light/close to 0 V when dark)” judged from 
optical sensor signal.

VEHICLE SPEED

“km/h”

Displays vehicle speed as judged from vehicle speed signal.

Monitor item

Contents

Test item

Description

TAIL LAMP

Allows tail lamp relay to operate by switching ON-OFF.

FR FOG LAMP

Allows front fog lamp relay to operate by switching ON-OFF.

DAYTIME RUNNING LIGHT

NOTE

—

HEAD LAMP (HI, LO)

Allows headlamp relay to operate by switching ON-OFF.