Nissan Maxima. Manual - part 567

EXL-10

< SYSTEM DESCRIPTION >

[XENON TYPE]

HEADLAMP

Component Description

INFOID:0000000010050182

XENON HEADLAMP

A Xenon type headlamp is adapted to the low beam headlamps. Xenon bulbs do not use a filament. Instead,

they produce light when a high voltage current is passed between two tungsten electrodes through a mixture

of Xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic control

of the power supply gives the headlamps stable quality and tone color.

Following are some of the many advantages of the Xenon-type headlamp.

• The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.

• Light output is nearly double that of halogen headlamps, affording increased area of illumination.

• The light features a high relative spectral distribution at wavelengths to which the human eye is most sensi-

tive. This means that even in the rain, more light is reflected back from the road surface toward the vehicle

for added visibility.

• Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.

HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION

With the lighting switch in the 2ND position and placed in HIGH position, the BCM receives input requesting

the headlamp high beams to illuminate.The flash-to-pass feature can be used any time and also sends a sig-

nal to the BCM. This input is communicated to the IPDM E/R across the CAN communication lines. The CPU

of the combination meter controls the ON/OFF status of the HIGH BEAM indicator. The CPU of the IPDM E/R

controls the headlamp high relay coil which directs power to the high beam headlamps.

EXTERIOR LAMP BATTERY SAVER CONTROL

With the combination switch (lighting and turn signal switch) in the 2nd position and the ignition switch is

turned from ON or ACC to OFF, the battery saver feature is activated.

Under this condition, the headlamps remain illuminated for 5 minutes unless the lighting switch position is

changed. If the lighting switch position is changed, then the headlamps are turned off. 

This setting can be changed by CONSULT. Refer to 

EXL-28, "BATTERY SAVER : CONSULT Function (BCM -

BATTERY SAVER)"

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1.

IPDM E/R E17, E18, E200

2.

BCM M16, M17, M18, M19 (view with 
combination meter removed)

3.

Combination Switch (lighting and turn 
signal switch) M28

4.

Combination Meter M24

DAYTIME RUNNING LIGHT SYSTEM

EXL-11

< SYSTEM DESCRIPTION >

[XENON TYPE]

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DAYTIME RUNNING LIGHT SYSTEM

System Diagram

INFOID:0000000010050183

System Description

INFOID:0000000010050184

The headlamp system for Canada vehicles is equipped with a daytime light relay that activates the high beam

headlamps at approximately half illumination whenever the engine is running. If the parking brake is

depressed before the engine is started, the daytime lights will not be illuminated. The daytime lights will illumi-

nate once the parking brake is released. Thereafter, the daytime lights will continue to operate when the park-

ing brake is depressed.

Component Parts Location

INFOID:0000000010050185

ABLIA2702GB

1.

IPDM E/R E17, E18, E200, E201

2.

BCM M16,M17, M18, M19 (view with 
combination meter removed)

3.

Combination switch (lighting and turn 
signal switch) M28

4.

Combination meter M24

5.

Parking brake switch E35

6.

Daytime light relay E228

AWLIA1632ZZ

EXL-12

< SYSTEM DESCRIPTION >

[XENON TYPE]

DAYTIME RUNNING LIGHT SYSTEM

Component Description

INFOID:0000000010050186

After starting the engine with the parking brake released and the lighting switch in the OFF or 1ST position, the

headlamp high beam automatically turns on. With the lighting switch in the 2nd position or with autolamps ON,

the headlamps function the same as conventional light systems.

OPERATION

The BCM monitors inputs from the parking brake switch and the combination switch (lighting and turn signal

switch) to determine when to activate the daytime light system. The BCM sends a daytime light request to the

IPDM E/R via the CAN communication lines. The IPDM E/R grounds the daytime light relay which in turn, pro-

vides power to the ground side of the RH high beam lamp. Power flows backward through the RH high beam

lamp to the IPDM E/R, through the high beam fuses, through the LH high beam lamp circuit to the LH high

beam lamp and on to ground. The high beam lamps are wired in series which causes them to illuminate at a

reduced intensity. 

• Hi: "HIGH BEAM" position
• Lo: "LOW BEAM" position
• P: "FLASH TO PASS" position
•

×: Lamp "ON"

• –: Lamp "OFF"
• z: Lamp dims. (Added functions)
• *: When starting the engine with the parking brake released, the daytime lights will operate.

When starting the engine with the parking brake depressed, the daytime lights will not operate.

Engine 

With engine stopped 

With engine running 

Lighting switch 

OFF 1ST 2ND OFF 1ST 2ND 

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Hi

Lo

P

Headlamp 

High  beam 

–

–

–

–

–

×

×

–

×

z

*

z

*

×

z

*

z

*

×

×

–

×

Low  beam 

–

–

–

–

–

×

×

×

×

–

–

×

–

–

×

×

×

×

Tail lamp 

–

–

–

×

×

×

×

×

×

–

–

–

×

×

×

×

×

×

License and instrument illumina-
tion lamp 

–

–

–

×

×

×

×

×

×

–

–

–

×

×

×

×

×

×

AUTO LIGHT SYSTEM

EXL-13

< SYSTEM DESCRIPTION >

[XENON TYPE]

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AUTO LIGHT SYSTEM

System Diagram

INFOID:0000000010050187

System Description

INFOID:0000000010050188

• BCM (Body Control Module) controls auto light operation according to signals from optical sensor, lighting

switch and ignition switch.

• IPDM E/R (Intelligent Power Distribution Module Engine Room) operates parking, license plate, tail, front fog

lamps and headlamps according to CAN communication signals from BCM.

• Optical sensor detects ambient brightness of 800 to 2,500 lux, converts light (lux) to voltage, and then sends

the optical sensor signal to BCM.

OUTLINE

The auto light control system has an optical sensor that detects outside brightness.

When the lighting switch is in AUTO position, it automatically turns ON/OFF the parking, license plate, tail,

front fog lamps and headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps.

For the details of the setting, refer to 

EXL-26, "HEADLAMP : CONSULT Function (BCM - HEAD LAMP)"

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ABLIA2703GB