Infiniti M35/M45 Y50. Manual - part 872

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

LT-33

C

D

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A

B

LT

5. 

CHECK HEADLAMP GROUND

1.

Turn ignition switch OFF.

2.

Check continuity between front combination lamp (RH and LH)
harness connector and ground.

OK or NG

OK

>> Check headlamp harness and connectors.

NG

>> Repair harness or connector.

6. 

CHECK CIRCUIT 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 and 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 

connector

Terminal

Ground

Continuity

RH

E47

4

Yes

LH

E54

4

SKIB4759E

Circuit

A

B

Continuity

Connector

Terminal

Connector

Terminal

RH

E7

20

E47

8

Yes

LH

30

E54

8

A

Ground

Continuity

Connector

Terminal

RH

E7

20

No

LH

30

SKIB4760E

LT-34

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

Headlamp Low Beam Does Not Illuminate (One Side)

NKS003OE

1. 

CHECK BULB

Check bulb of lamp which does not illuminate.
OK or NG

OK

>> GO TO 2.

NG

>> Replace headlamp bulb.

2. 

CHECK HEADLAMP INPUT SIGNAL

With CONSULT-II

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp RH or LH connector.

3.

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

4.

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

5.

Touch “LO” screen.

6.

When headlamp low beam is operating, check voltage between
front combination lamp RH or LH harness connector and
ground.

Without CONSULT-II

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp RH or LH connector.

3.

Start auto active test. Refer to 

PG-23, "Auto Active Test"

 .

4.

When headlamp low beam is operating, check voltage between front combination lamp RH or LH harness
connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

Terminal

Voltage 

(Approx.)

(+)

(-)

Front combination lamp 

connector

terminal

RH

E47

8

Ground

Battery voltage

LH

E54

8

Terminal

Voltage 

(Approx.)

(+)

(-)

Front combination lamp 

connector

terminal

RH

E47

8

Ground

Battery voltage

LH

E54

8

SKIB4758E

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

LT-35

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3. 

CHECK HEADLAMP GROUND 

1.

Turn ignition switch OFF.

2.

Check continuity between front combination lamp RH or LH har-
ness connector and ground.

OK or NG

OK

>> Check headlamp harness and connectors.

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.

3.

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

connector

Terminal

Ground

Continuity

RH

E47

4

Yes

LH

E54

4

SKIB4759E

Circuit

A

B

Continuity

Connector

Terminal

Connector

Terminal

RH

E7

20

E47

8

Yes

LH

30

E54

8

A

Ground

Continuity

Connector

Terminal

RH

E7

20

No

LH

30

SKIB4760E

LT-36

HEADLAMP (FOR USA) - CONVENTIONAL TYPE -

Headlamps Do Not Turn OFF

NKS003OF

1. 

CHECK HEADLAMP TURN OFF

Make sure that lighting switch is OFF. And make sure headlamp turns off when ignition switch is turned OFF.
OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

CHECK COMBINATION SWITCH INPUT SIGNAL 

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.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

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

LT-

239, "Combination Switch Inspection"

 .

3. 

CHECK CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R

Select “BCM” on CONSULT-II, and perform self-diagnosis for “BCM”.
Display of self-diagnosis results

NO DTC>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

CAN COMM CIRCUIT>>  Refer  to 

BCS-13, "CAN Communication

Inspection Using CONSULT-II (Self-Diagnosis)"

 .

When lighting switch is OFF 
position

: HEAD LAMP SW 1 OFF
: HEAD LAMP SW 2 OFF

PKIA7588E

PKIA7627E