Nissan Quest E52. Instruction — part 601

EXL-8

< SYSTEM DESCRIPTION >

[XENON TYPE]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000009653005

A.

Front combination lamp (back)

No.

Part

Function

1.

Optical sensor

Refer to

EXL-9, "Optical Sensor"

.

2.

BCM

• Detects each switch condition by the combination switch reading function
• Judges that the exterior lamps are turned ON according to the vehicle condition
• Requests the headlamp relay (High/Low), tail lamp relay and front fog lamp relay

ON to IPDM E/R (via CAN communication)

• Requests the high beam indicator lamp and tail lamp indicator lamp ON to the

combination meter (via CAN communication)

• Judges the outside brightness from the optical sensor signal.
• Judges the ON/OFF timing according to the vehicle condition.
• Judges the ON/OFF status of the exterior lamp according to the outside bright-

ness and the vehicle condition.

• Refer to

BCS-4, "BODY CONTROL SYSTEM : Component Parts Location"

for

detailed installation location.

JMLIA2057ZZ

COMPONENT PARTS

EXL-9

< SYSTEM DESCRIPTION >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

*

: With daytime running light system

Optical Sensor

INFOID:0000000009653006

Optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.

Daytime Running Light Relay

INFOID:0000000009653007

Headlamp HI ground circuit is switched according to request from IPDM E/R.

Xenon Headlamp

INFOID:0000000009653008

OUTLINE

• The lamp light source is by the arch discharge by applying high voltage into the xenon gas-filled bulb instead

of the halogen bulb filament.

• Sight becomes more natural and brighter because the amount of light are gained adequately and the color of

light is sunshine-like white.

• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-

vice life.

ILLUMINATION PRINCIPLE

3.

Daytime running light relay

*

Refer to

EXL-9, "Daytime Running Light Relay"

.

4.

IPDM E/R

• Controls the integrated relay, and supplies voltage to the load according to the re-

quest from BCM (via CAN communication).

• Refer to

PCS-4, "IPDM E/R : Component Parts Location"

for detailed installation

location.

5.

Front turn signal lamp/Parking lamp

Refer to

EXL-11, "Bulb Specifications"

.

6.

Headlamp HI

Refer to

EXL-11, "Bulb Specifications"

.

7.

Front fog lamp

Refer to

EXL-11, "Bulb Specifications"

.

8.

Headlamp LO (Xenon headlamp)

Refer to

EXL-9, "Xenon Headlamp"

.

9.

Front side marker lamp

Refer to

EXL-11, "Bulb Specifications"

.

10.

Air bag diagnosis sensor unit

Transmits air bag signal to BCM.
Refer to

SRC-8, "Component Parts Location"

for detailed installation location.

11.

Side turn signal lamp

Refer to

EXL-11, "Bulb Specifications"

.

12.

Hazard switch

Refer to

EXL-10, "Hazard Switch"

.

13.

Push-button ignition switch

Refer to

DLK-18, "DOOR LOCK SYSTEM : Component Parts Location"

.

14.

Combination meter

• Blinks the turn signal indicator lamp and outputs the turn signal operating sound

with integrated buzzer according to the request from BCM (via CAN communica-
tion).

• Turns the high beam indicator lamp and tail lamp indicator lamp ON according to

the request from BCM (via CAN communication).

15.

Combination switch
(Lighting & turn signal switch)

Refer to

BCS-8, "COMBINATION SWITCH READING SYSTEM : System Descrip-

tion"

.

16.

Headlamp aiming switch

Refer to

EXL-10, "Headlamp Aiming Switch"

.

17.

Front door switch (driver side)

Refer to

DLK-18, "DOOR LOCK SYSTEM : Component Parts Location"

.

18.

Slide door switch (LH)

Refer to

DLK-18, "DOOR LOCK SYSTEM : Component Parts Location"

.

19.

Rear side marker lamp

Refer to

EXL-11, "Bulb Specifications"

.

20.

Rear turn signal lamp

Refer to

EXL-11, "Bulb Specifications"

.

21.

Tail lamp

Refer to

EXL-11, "Bulb Specifications"

.

22.

Back door switch

Refer to

DLK-18, "DOOR LOCK SYSTEM : Component Parts Location"

.

23.

License plate lamp

Refer to

EXL-11, "Bulb Specifications"

.

24.

HID control unit

Refer to

EXL-10, "HID control unit"

.

25.

Headlamp aiming motor

Refer to

EXL-10, "Headlamp Aiming Motor"

.

No.

Part

Function

EXL-10

< SYSTEM DESCRIPTION >

[XENON TYPE]

COMPONENT PARTS

1.

Discharging starts in high voltage pulse between bulb elec-
trodes.

2.

Xenon gas is activated by current between electrodes. Pale light
is emitted.

3.

The luminous tube (bulb) temperature elevates. Evaporated
halide is activated by discharge. The color of light changes into
white.

NOTE:
• Brightness and the color of light may change slightly immediately

after the headlamp turned ON until the xenon bulb becomes sta-
ble. This is not malfunction.

• Illumination time lag may occur between right and left. This is not

malfunction.

PRECAUTIONS FOR TROUBLE DIAGNOSIS

Representative malfunction examples are; “Light does not turn ON”, “Light blinks”, and “Brightness is inade-
quate.” The cause often be the xenon bulb. Such malfunctions, however, are occurred occasionally by HID
control unit malfunction or lamp case malfunction. Specify the malfunctioning part with diagnosis procedure.

WARNING:

• Never touch the harness, HID control unit, the inside and metal part of lamp when turning the head-

lamp ON or operating the lighting switch.

• Never work with wet hands.

CAUTION:

• Never perform HID control unit circuit diagnosis with a circuit tester or an equivalent, for preventing

electrical shock.

• Temporarily install the headlamps on the vehicle. Connect the battery to the connector (vehicle side)

when checking ON/OFF status, for preventing electrical shock.

• Disconnect the battery negative terminal before disconnecting the lamp socket connector or the har-

ness connector.

• Check for fusing of the fusible link(s), open around connector, short, disconnection if the symptom

is caused by electric error.

NOTE:
• Turn the switch OFF once before turning ON, if the ON/OFF is inoperative.
• The xenon bulb drops the amount of light, repeats blinking, and illuminates in red if the bulb reaches the ser-

vice life.

Hazard Switch

INFOID:0000000009653009

Inputs the hazard switch ON/OFF signal to BCM.

Headlamp Aiming Switch

INFOID:0000000009653010

Adjusts height of headlamp aiming.

HID control unit

INFOID:0000000009653011

Headlamp (LO) circuit is connected to HID control unit integrated in the headlamp. Headlamp (LO) circuit turns
xenon headlamp ON.
For the details of HID control unit and the xenon headlamp, refer to

EXL-9, "Xenon Headlamp"

.

Headlamp Aiming Motor

INFOID:0000000009653012

The headlamp levelizer adjusts the headlamp light axis upward and downward with the headlamp aiming
motor integrated in the front combination lamp.

JPLIA0421GB

COMPONENT PARTS

EXL-11

< SYSTEM DESCRIPTION >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Bulb Specifications

INFOID:0000000009653013

Item

Type

Wattage (W)

Front combination lamp

Headlamp (HI)

HB3 (Halogen)

60

Headlamp (LO)

D2S (Xenon)

35

Front turn signal lamp/
Parking lamp

S25 (Amber)

27/8

Front side marker lamp

W5W

5

Front fog lamp

H8

35

Side turn signal lamp (integrated into the door mirror)

LED

—

Rear combination lamp

Stop lamp/
Tail lamp (side marker)

W21/5W

21/5

Rear turn signal lamp

WY21W (Amber)

21

Back-up lamp

W16W

16

License plate lamp

W5W

5

High-mounted stop lamp

LED

—