Nissan Maxima. Manual - part 575

EXL-42

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

XENON HEADLAMP

XENON HEADLAMP

Description

INFOID:0000000010050222

OPERATION

Refer to 

EXL-10, "Component Description"

.

PRECAUTIONS FOR TROUBLE DIAGNOSIS

• Installation or removal of the connector must be done with the lighting switch OFF.

• When the lamp is illuminated (when the lighting switch is ON), do not touch the harness, HID control unit,

inside of the lamp, or the lamp metal parts.

• To check illumination, temporarily install lamp in the vehicle. Be sure to connect power at the vehicle-side

connector.

• If the malfunction can be traced directly to the electrical system, first check for items such as blown fuses

and fusible links, broken wires or loose connectors, pulled-out terminals, and improper connections.

• Do not work with wet hands.

• Using a tester for HID control unit circuit trouble diagnosis is prohibited.

• Disassembling the HID control unit or harnesses (bulb socket harness, ballast harness) is prohibited.

• Immediately after illumination, the light intensity and color will fluctuate, this is normal.

• When the bulb has reached the end of its lifetime, the brightness may drop significantly, it may flash repeat-

edly, or the light may turn a reddish color.

Diagnosis Procedure

INFOID:0000000010050223

1.

CHECK XENON BULB

Install a known good bulb to the applicable headlamp. Check that the headlamp operates.
Is the inspection result normal?

YES

>> Replace the xenon bulb.

NO

>> GO TO 2.

2.

CHECK HID CONTROL UNIT

Install a known good HID control unit to the applicable headlamp. Check that the headlamp operates.
Is the inspection result normal?

YES

>> Replace HID control unit. 

NO

>> Inspection End.

FRONT FOG LAMP CIRCUIT

EXL-43

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

FRONT FOG LAMP CIRCUIT

Description

INFOID:0000000010050224

The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on

inputs from the BCM over the CAN communication lines. When the front fog lamp relay is energized, power

flows from the front fog lamp relay in the IPDM E/R to the front fog lamps. 

Component Function Check

INFOID:0000000010050225

1.

CHECK FRONT FOG LAMP OPERATION

WITHOUT CONSULT

1. Activate IPDM E/R auto active test. Refer to 

PCS-11, "Diagnosis Description"

.

2. Check that the front fog lamp is turned ON.

CONSULT

1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.

2. While operating the test item, check that the front fog lamp is turned ON.

Is the front fog lamp turned ON?

YES

>> Front fog lamp circuit is normal.

NO

>> Refer to 

EXL-43, "Diagnosis Procedure"

. 

Diagnosis Procedure

INFOID:0000000010050226

Regarding Wiring Diagram information, refer to 

EXL-112, "Wiring Diagram"

.

1.

CHECK FRONT FOG LAMP FUSE

1. Turn the ignition switch OFF.

2. Check that the following fuse is not open.

Is the fuse open?

YES

>> Repair the harness and replace the fuse.

NO

>> GO TO 2.

2.

CHECK FRONT FOG LAMP OUTPUT VOLTAGE

CONSULT

1. Turn the ignition switch OFF.

2. Disconnect the front fog lamp connector.

3. Turn the ignition switch ON.

4. Select "EXTERNAL LAMPS" of IPDM E/R active test item.

FOG

: Front fog lamp ON

OFF

: Front fog lamp OFF

Unit

Location

Fuse No.

Capacity

Front fog lamp 

IPDM E/R

53

15A

EXL-44

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

FRONT FOG LAMP CIRCUIT

5. With EXTERNAL LAMPS ON, check the voltage between the

fog lamp connector and ground.

Is battery voltage present?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

CHECK FRONT FOG LAMP OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R connector E200.

3. Check continuity between the IPDM E/R harness connector (A)

and the front fog lamp harness connector (B).

Does continuity exist?

YES

>> Replace the IPDM E/R. Refer to 

PCS-35, "Removal and

Installation"

.

NO

>> Repair the harnesses or connectors.

4.

CHECK FRONT FOG LAMP GROUND CIRCUIT

Check continuity between the front fog lamp harness connector ter-

minal and ground.

Does continuity exist?

YES

>> Inspect the fog lamp bulb.

NO

>> Repair the harness.

(+)

(

−)

Voltage

Connector

Terminal

LH

E214

1

Ground

Battery voltage

RH

E227

1

ALLIA0119ZZ

A

B

Continuity

Connector

Terminal

Connector

Terminal

RH

E200

86

E227

1

Yes

LH

87

E214

1

ALLIA0123ZZ

Connector

Terminal

—

Continuity

RH

E227

2

Ground

Yes

LH

E214

2

ALLIA0121ZZ

PARKING LAMP CIRCUIT

EXL-45

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

PARKING LAMP CIRCUIT

Description

INFOID:0000000010050227

The IPDM E/R (intelligent power distribution module engine room) controls the tail lamp relay based on inputs

from the BCM over the CAN communication lines. When the tail lamp relay is energized, power flows through

fuses 46 and 47, located in the IPDM E/R. Power then flows to the front and rear combination lamps, license

plate lamps.

Component Function Check

INFOID:0000000010050228

1.

CHECK PARKING LAMP OPERATION

WITHOUT CONSULT

1. Activate IPDM E/R auto active test. Refer to 

PCS-11, "Diagnosis Description"

.

2. Check that the parking lamp is turned ON.

CONSULT

1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.

2. While operating the test item, check that the parking lamp is turned ON.

Is the parking lamp turned ON?

YES

>> Parking lamp circuit is normal.

NO

>> Refer to 

EXL-45, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010050229

Regarding Wiring Diagram information, refer to 

EXL-124, "Wiring Diagram"

.

1.

CHECK PARKING LAMP FUSES

1. Turn the ignition switch OFF.

2. Check that the following fuses are not open.

Is the fuse open?

YES

>> Repair the harness and replace the fuse.

NO

>> GO TO 2.

2.

CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)

CONSULT

1. Turn the ignition switch OFF.

2. Disconnect the front and rear combination lamp connectors.

3. Turn the ignition switch ON.

4. Select “EXTERNAL LAMPS" of IPDM E/R active test item.

TAIL

: Parking lamp ON

OFF

: Parking lamp OFF

Unit

Location

Fuse No.

Capacity

Parking lamps (front) 

IPDM E/R

46

10A

Parking lamps (rear) 

IPDM E/R

47

10A