Infiniti M35/M45 Y50. Manual - part 890

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-105

C

D

E

F

G

H

I

J

L

M

A

B

LT

3. 

CHECK CONTINUITY BETWEEN IPDM E/R AND FRONT COMBINATION LAMP

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector (A) and
front combination lamp RH harness connector (B).

4.

Check continuity between IPDM E/R harness connector (A) and
ground.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and Installation of IPDM E/R"

 .

NG

>> Repair harness or connector.

4. 

CHECK HEADLAMP GROUND (1)

1.

Turn ignition switch OFF.

2.

Remove daytime light relay.

3.

Check continuity between front combination lamp RH harness
connector (A) and daytime light relay harness connector (B).

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

 CHECK HEADLAMP GROUND (2)

Check continuity between daytime light relay harness connector and
ground.

OK or NG

OK

>> GO TO 6.

NG

>> Repair harness or connector.

A

B

Continuity

Connector

Terminal Connector

Terminal 

E7

27

E47

6

Yes

A

Ground

Continuity

Connector

Terminal 

E7

27

No

SKIB4755E

A

B

Continuity

Connector

Terminal Connector

Terminal 

E47

2

E34

3

Yes

SKIB4751E

Daytime light relay 

connector

Terminal 

Ground

Continuity

E34

4

Yes

SKIB4674E

LT-106

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

6. 

CHECK DAYTIME RELAY

Check continuity between daytime light relay terminals.

OK

>> Check connecting condition front combination lamp RH

harness connector.

NG

>> Replace daytime light relay.

LH High Beam Does Not Illuminate But RH High Beam Illuminates

NKS003PN

1. 

CHECK BULB

Check bulb of lamp.

OK or NG

OK

>> GO TO 2.

NG

>>  Replace bulb of lamp.

2. 

CHECK HEADLAMP INPUT SIGNAL

With CONSULT-II

1.

Disconnect front combination lamp LH connector.

2.

Select “IPDM E/R” on CONSULT-II and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.

3.

Touch “HI” screen.

4.

When headlamp high beam is operating, check voltage between
front combination lamp LH harness connector and ground.
(Headlamp high beam repeats ON–OFF every 1 second.)

Without CONSULT-II

1.

Disconnect front combination lamp LH connector.

2.

Start auto active test. Refer to 

PG-23, "Auto Active Test"

 .

3.

When headlamp high beam is operating, check voltage between front combination lamp LH harness con-
nector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

Daytime light relay terminals

Continuity

3

4

Yes

SKIB4660E

Terminals

Voltage 

(Approx.)

(+)

(-)

Front combination lamp 

LH connector

Terminal

E54

6

Ground

Battery voltage

Terminals

Voltage 

(Approx.)

(+)

(-)

Front combination lamp 

LH connector

Terminal

E54

6

Ground

Battery voltage

SKIB4749E

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

LT-107

C

D

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F

G

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A

B

LT

3. 

CHECK HEADLAMP GROUND

1.

Turn ignition switch OFF.

2.

Check continuity front combination lamp harness connector and
ground.

OK or NG

OK

>> Check connecting condition front headlamp LH connec-

tor harness. 

NG

>> Repair harness or connector.

4. 

 CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT COMBINATION LAMP

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and front combination lamp LH connector.

3.

Check continuity between IPDM E/R harness connector (A) and
front combination lamp LH harness connector (B).

4.

Check continuity between IPDM E/R harness connector (A) and
ground.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and Installation of IPDM E/R"

 .

NG

>> Repair harness or connector.

Front combination 

lamp LH connector

Terminal 

Ground

Continuity

E54

2

Yes

SKIB4750E

A

B

Continuity

Connector

Terminal Connector

Terminal 

E7

28

E54

6

Yes

A

Ground

Continuity

Connector

Terminal 

E7

28

No

SKIB4757E

LT-108

HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -

Headlamp Low Beam Does Not Illuminate (Both Sides)

NKS003PO

1. 

CHECK COMBINATION SWITCH INPUT SIGNAL 

With CONSULT-II

Select “BCM” on CONSULT-II. With “HEAD LAMP” data monitor,
make sure “HEAD LAMP SW 1” and “HEAD LAMP SW 2” turns ON-
OFF linked with operation of lighting switch.

Without CONSULT-II

Refer to 

LT-239, "Combination Switch Inspection"

 .

OK or NG

OK

>> GO TO 2.

NG

>> Check lighting switch. Refer to 

LT-239, "Combination

Switch Inspection"

 .

2. 

HEADLAMP ACTIVE TEST

With CONSULT-II

1.

Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST”
on “SELECT DIAG MODE” screen.

2.

Select “LAMPS” on “SELECT TEST” ITEM screen. 

3.

Touch “LO” screen.

4.

Make sure headlamp low beam operation.

Without CONSULT-II

1.

Start auto active test. Refer to 

PG-23, "Auto Active Test"

 .

2.

Make sure headlamp low beam operation.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

3. 

CHECK IPDM E/R

1.

Select “IPDM E/R” on CONSULT-II, and select “DATA MONI-
TOR” on “SELECT DIAG MODE” screen.

2.

Make sure “HL LO REQ” turns ON when lighting switch is in
2ND position.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

>> Replace BCM. Refer to 

BCS-15, "Removal and Installa-

tion of BCM"

 .

When lighting switch is 2ND 
position

: HEAD LAMP SW 1 ON
: HEAD LAMP SW 2 ON

PKIA6325E

Headlamp low beam should operate.

Headlamp low beam should operate.

SKIA5774E

When lighting switch is 2ND position

: HL LO REQ ON

SKIA5780E