Infiniti FX35 / FX45. Manual - part 782

HEADLAMP - XENON TYPE -

LT-23

< SERVICE INFORMATION >

C

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LT

N

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1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

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

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-24, "Removal and Installation of IPDM E/R"

.

NG

>> Repair harness or connector.

6.

CHECK HEADLAMP GROUND 

1.

Turn ignition switch OFF.

2.

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

OK or NG

OK

>> Check headlamp harness and connectors, ballasts (HID

control unit), and xenon bulbs. Refer to 

LT-27, "Xenon

Headlamp Trouble Diagnosis"

.

NG

>> Repair harness or connector.

Headlamp Low Beam Does Not Illuminate (One Side)

INFOID:0000000001381745

1.

CHECK BULB

Check ballast (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to 

LT-27, "Xenon

Headlamp Trouble Diagnosis"

.

OK or NG

OK

>> GO TO 2.

NG

>> Replace malfunctioning part.

2.

CHECK HEADLAMP INPUT SIGNAL 

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp RH or LH connector.

3.

Turn ignition switch ON.

4.

Lighting switch is turned 2ND position. 

5.

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

OK or NG

OK

>> GO TO 4.

Terminals

Continuity

IPDM E/R

Front combination lamp

Connector

Terminal

Connector

Terminal

RH

E7

20

E24

6

Yes

LH

30

E44

6

PKIA5209E

Front combination lamp

connector

Terminal

Ground 

Continuity

RH

E24

7

Yes

LH

E44

7

PKIA5207E

Terminals

Voltage

(Approx.)

(+)

(-)

Front combination lamp

connector

Terminal

RH

E24

6

Ground Battery 

voltage

LH

E44

6

PKIA5208E

LT-24

< SERVICE INFORMATION >

HEADLAMP - XENON TYPE -

NG

>> GO TO 3.

3.

CHECK HEADLAMP CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check continuity between IPDM E/R harness connector and
front combination lamp RH or LH harness connector.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-24, "Removal and Installation of IPDM E/R"

.

NG

>> Repair harness or connector.

4.

CHECK HEADLAMP GROUND 

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

OK or NG

OK

>> Check headlamp harness and connector.

NG

>> Repair harness or connector.

Headlamp RH Low Beam and High Beam Does Not Illuminate

INFOID:0000000001381746

1.

CHECK BULB

Inspect ballast (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to 

LT-27, "Xenon

Headlamp Trouble Diagnosis"

.

OK or NG

OK

>> GO TO 2.

NG

>> Replace malfunctioning part.

2.

 CHECK HEADLAMP GROUND 

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp RH connector.

3.

Check continuity between front combination lamp RH harness
connector E24 terminal 7 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3.

CHECK HEADLAMP CIRCUIT 

Terminals

Continuity

IPDM E/R

Front combination lamp

Connector

Terminal

Connector

Terminal

RH

E7

20

E24

6

Yes

LH

30

E44

6

PKIA5209E

Front combination lamp

connector

Terminal

Ground 

Continuity

RH

E24

7

Yes

LH

E44

7

PKIA5207E

7 – Ground

: Continuity should exist.

PKIA5207E

HEADLAMP - XENON TYPE -

LT-25

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

LT

N

O

P

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector E7 ter-
minal 27 and front combination lamp RH harness connector E24
terminal 5.

3.

Check continuity between IPDM E/R harness connector E7 ter-
minal 20 and front combination lamp RH harness connector E24
terminal 6.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-24, "Removal and

Installation of IPDM E/R"

.

NG

>> Repair harness or connector.

Headlamp LH Low Beam and High Beam Does Not Illuminate

INFOID:0000000001381747

1.

CHECK BULB

Inspect ballast (HID control unit) and xenon bulb of lamp which does not illuminate. Refer to 

LT-27, "Xenon

Headlamp Trouble Diagnosis"

.

OK or NG

OK

>> GO TO 2.

NG

>> Replace malfunctioning part.

2.

CHECK HEADLAMP GROUND 

1.

Turn ignition switch OFF.

2.

Disconnect front combination lamp LH connector.

3.

Check continuity between front combination lamp LH harness
connector E44 terminal 7 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3.

CHECK HEADLAMP CIRCUIT 

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector E7 ter-
minal 28 and front combination lamp LH harness connector E44
terminal 5.

27 – 5

: Continuity should exist.

PKIA7587E

20 – 6

: Continuity should exist.

PKIA5211E

7 – Ground

: Continuity should exist.

PKIA5207E

28 – 5

: Continuity should exist.

PKIA5212E

LT-26

< SERVICE INFORMATION >

HEADLAMP - XENON TYPE -

3.

Check continuity between IPDM E/R harness connector E7 ter-
minal 30 and front combination lamp LH harness connector E44
terminal 6.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-24, "Removal and

Installation of IPDM E/R"

.

NG

>> Repair harness or connector.

Headlamps Does Not Turn OFF

INFOID:0000000001381748

1.

CHECK HEADLAMP TURN OFF

Make sure that lighting switch is OFF. And check if 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 

CONSULT-III DATA MONITOR

1.

Select “HEAD LAMP1” and “HEAD LAMP2” of BCM data monitor item.

2.

With operating the lighting switch, check the monitor status.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-24, "Removal and Installation of IPDM E/R"

.

NG

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

LT-104, "Combination Switch Inspection"

.

3.

CHECKING CAN COMMUNICATIONS BETWEEN BCM AND IPDM E/R

Perform self-diagnosis for “BCM” with CONSULT-III.

Display of self-diagnosis results

NO DTC>> Replace IPDM E/R. Refer to 

PG-24, "Removal and Installation of IPDM E/R"

.

CAN COMM CIRCUIT>> Refer to 

LAN-43, "CAN System Specification Chart"

.

General Information for Xenon Headlamp Trouble Diagnosis

INFOID:0000000001328284

In most cases, malfunction of xenon headlamp - “does not illuminate”, “flickers” or “dark” - is caused by a mal-
functioning xenon bulb. A malfunctioning HID control unit or lamp housing, however, may be a cause. Be sure
to perform trouble diagnosis following the steps described below.

Caution:

INFOID:0000000001328285

• Installation or removal of connector must be done with lighting switch OFF.
• Disconnect the battery cable from the negative terminal or remove power fuse.
• When the lamp is illuminated (when lighting switch is ON), never touch harness, HID control unit, inside of

lamp, or lamp metal parts.

• To check illumination, temporarily install lamp in vehicle. Be sure to connect power at vehicle side connector.
• If error can be traced directly to electrical system, first check for items such as blown fuses and fusible links,

broken wires or loose connectors, dislocated terminals, and improper connections.

• Never work with wet hands.
• Using a tester for HID control unit circuit trouble diagnosis is prohibited.
• Disassembling HID control unit or harnesses (bulb socket harness, ECM harness) is prohibited.
• Immediately after illumination, light intensity and color will fluctuate, but there is nothing wrong.
• When bulb has come to end of its life, brightness will drop significantly, it will flash repeatedly, or light color

will turn reddish.

30 – 6

: Continuity should exist.

PKIA5213E

When lighting switch is OFF

: HEAD LAMP SW1 OFF
: HEAD LAMP SW2 OFF