Infiniti M35/M45 Y50. Manual - part 896

 

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Infiniti M35/M45 Y50. Manual - part 896

 

 

AUTO LIGHT SYSTEM

LT-129

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LT

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

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

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.

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.

LT-130

AUTO LIGHT SYSTEM

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 tested only for CANADA models.

Symptom Chart

NKS003QA

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

Allows daytime light relay to operate by switching ON-OFF.

HEAD LAMP (HI, LO)

Allows headlamp relay to operate by switching ON-OFF.

Phenomenon

Malfunction system and reference

Parking lamps and headlamps will not illuminate when outside 
of the vehicle becomes dark. (Lighting switch 1ST position and 
2ND position operate normally.) 

Parking lamps and headlamp will not go out when outside of the 
vehicle becomes light. (Lighting switch 1ST position and 2ND 
position operate normally.)

Headlamps go out when outside of the vehicle becomes light, 
but parking lamps stay on.

Refer to 

LT-128, "WORK SUPPORT"

 .

Refer to 

LT-131, "Lighting Switch Inspection"

 .

Refer to 

LT-131, "Optical Sensor System Inspection"

 .

If above systems are normal, replace BCM.

Parking lamps illuminate when outside of the vehicle becomes 
dark, but headlamps stay off. (Lighting switch 1ST position and 
2ND position operate normally.)

Refer to 

LT-128, "WORK SUPPORT"

 .

Refer to 

LT-131, "Optical Sensor System Inspection"

 .

If above systems are normal, replace BCM.

With the ignition key in ACC position, headlamps, clearance 
lamps, tail lamps, etc. will not go out when the driver's door is 
opened.

Refer to

BL-94, "Check Door Switch"

 .

If above system is normal, replace BCM.

Auto light adjustment system will not operate. (Lighting switch 
AUTO, 1ST position and 2ND position operate normally.)

Refer to 

LT-131, "Optical Sensor System Inspection"

 .

If above system is normal, replace BCM.

Auto light adjustment system of combination meter will not oper-
ate.

CAN communication line inspection between BCM and combi-
nation meter: Refer to 

BCS-13, "CAN Communication Inspec-

tion Using CONSULT-II (Self-Diagnosis)"

 .

AUTO LIGHT SYSTEM

LT-131

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LT

Lighting Switch Inspection

NKS003QB

1. 

CHECK LIGHTING SWITCH INPUT SIGNAL 

With CONSULT-II

1.

Select “BCM” on CONSULT-II, and select “HEAD LAMP” on
“SELECT TEST ITEM” screen.

2.

Select “DATA MONITOR” on “SELECT DIAG MODE” screen,
and make sure “AUTO LIGHT SW” turns ON–OFF linked with
operation of lighting switch.

Without CONSULT-II

Refer to 

LT-239, "Combination Switch Inspection"

 .

OK or NG

OK

>> INSPECTION END

NG

>> Replace combination switch (lighting switch). Refer to 

LT-239, "Combination Switch Inspection"

 .

Optical Sensor System Inspection

NKS003QC

1. 

CHECK OPTICAL SENSOR INPUT SIGNAL 

With CONSULT-II

1.

Select “BCM” on CONSULT-II, and select “HEAD LAMP” on
“SELECT TEST ITEM” screen.

2.

Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
On “OPTICAL SENSOR”, check difference in the voltage when
optical sensor is illuminated and not illuminated.

CAUTION:

Optical sensor must be securely subjected to work lamp light. If the optical sensor is insufficiently
illuminated, the measured value may not satisfy the standard.

Without CONSULT-II

1.

Turn ignition switch ON.

2.

Check voltage between BCM harness connector and ground.

CAUTION:

Optical sensor must be securely subjected to work lamp light. If the optical sensor is insufficiently
illuminated, the measured value may not satisfy the standard.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

When lighting switch is AUTO 
position

: AUTO LIGHT SW ON 

PKIA7595E

Illuminated

OPTICAL SENSOR

: 3.1 V or more

Not illuminated

OPTICAL SENSOR

: 0.6 V or less

Terminal

Condition

Voltage 

(Approx.)

(+)

(-)

BCM

connector

Terminal

M1

14

Ground 

Illuminated
Optical sensor

3.1 V or more

Not illuminated
Optical sensor

0.6 V or less

PKIA7596E

PKIB6163E

LT-132

AUTO LIGHT SYSTEM

2. 

CHECK OPTICAL SENSOR POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector and optical sensor connector.

3.

Check continuity (open circuit) between BCM harness connector
and optical sensor harness connector.

4.

Check continuity (short circuit) between BCM harness connector
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK OPTICAL SENSOR SIGNAL CIRCUIT 

1.

Check continuity (open circuit) between BCM harness connector
and optical sensor harness connector.

2.

Check continuity between (short circuit) BCM harness connector
and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

4. 

CHECK OPTICAL SENSOR GROUND CIRCUIT 

1.

Check continuity (open circuit) between BCM harness connector
and optical sensor harness connector.

2.

Check continuity (short circuit) between BCM harness connector
and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

BCM Optical 

sensor

Continuity

Connector

Terminal

Connector

Terminal

M1

17

M48

1

Yes

BCM connector

Terminal 

Ground

Continuity

M1

17

No

PKIA6257E

BCM Optical 

sensor

Continuity

Connector

Terminal

Connector

Terminal

M1

14

M48

2

Yes

BCM connector

Terminal 

Ground

Continuity

M1

14

No

PKIA6258E

BCM Optical 

sensor

Continuity

Connector

Terminal

Connector

Terminal

M1

18

M48

3

Yes

BCM connector

Terminal 

Ground

Continuity

M1

18

No

PKIA6259E

 

 

 

 

 

 

 

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