Nissan Maxima. Instruction — 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 -
.
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]
C
D
E
F
G
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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)"
.
ABLIA2703GB
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