For USA
System DescriptionThe headlamp operation is controlled by the lighting switch which is built into the combination switch and smart entrance control unit. And the headlamp battery saver system is controlled by the smart entrance control unit.
OUTLINE
Power is supplied at all times
- to headlamp LH relay terminals 1 and 6
- through 20 A fuse (No. 54, located in the fuse and fusible link box), and
- to headlamp LH relay terminal 3
- through 15 A fuse (No. 68, located in the fuse and fusible link box), and
- to headlamp RH relay terminals 1 and 6
- through 20 A fuse (No. 55, located in the fuse and fusible link box), and
- to headlamp RH relay terminal 3
- through 15 A fuse (No. 69, located in the fuse and fusible link box), and
- to smart entrance control unit terminal 49
- through 10 A fuse [No. 13, located in the fuse block (J/B)].
When the ignition switch is in the ON or START position, power is supplied
- to smart entrance control unit terminal 27
- through 10 A fuse [No. 10, located in the fuse block (J/B)].
When the ignition switch is in the ACC or ON position, power is supplied
- to smart entrance control unit terminal 26
- through 10 A fuse [No. 1, located in the fuse block (J/B)]
Ground is supplied
- to smart entrance control unit terminals 43 and 64
- through body grounds M9, M25 and M87.
POWER SUPPLY TO LOW BEAM AND HIGH BEAM
When lighting switch is in 2ND or PASS position, ground is supplied
- to headlamp LH relay terminal 2 from smart entrance control unit terminal 21
- through smart entrance control unit terminal 22,
- from lighting switch terminal 12, and
- to headlamp RH relay terminal 2 from smart entrance control unit terminal 59
- through smart entrance control unit terminal 60,
- from lighting switch terminal 12.
Headlamp relays (LH and RH) are energized and then power is supplied to headlamps (LH and RH).
LOW BEAM OPERATION
When the lighting switch is turned to the 2ND position and placed in LOW ("B") position, power is supplied
- from terminal 7 of each headlamp relay
- to terminal 1 of each headlamp Ground is supplied
- to headlamp LH terminal 2
- through body grounds E11, E22 and E53, and
- to headlamp RH terminal 2
- through body grounds E11, E22 and E53.
With power and ground supplied, the headlamp(s) will illuminate.
HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION
When the lighting switch is turned to the 2ND position and placed in HIGH ("A") position or PASS ("C") position, power is supplied
- from terminal 5 of each headlamp relay
- to terminal 4 of each headlamp, and
- to combination meter terminal 26 for the HIGH BEAM indicator.
Ground is supplied
- to headlamp LH terminal 5
- through lighting switch terminals 6 and 5
- through body grounds E11, E22 and E53, and
- to headlamp RH terminal 5
- to combination meter terminal 27 for the HIGH BEAM indicator
- through lighting switch terminals 9 and 8
- through body grounds E11, E22 and E53.
With power and ground supplied, the high beams and the high beam indicator illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
While the headlamp is turned ON by "2ND" of light switch, the 5 minute timer is activated when the ignition switch is turned from ON (or START) to OFF (ACC OFF).
Continuity between terminals 21 and 22, and between terminals 59 and 60 of smart entrance control unit will be disturbed after 5 minutes, then the headlamps will be turned off.
While the headlamp is turned ON by "AUTO" of light switch, the 5 minutes timer is activated when the ignition switch signal changes from ON (or START) to OFF (ACC OFF), and either one of LH or RH front door switch ON signal is input.
The auto light delay off timer is activated as the following:
- When the door switch signal changes from ON to OFF while the timer is activated, the timer in operation is discontinued and the 45 second timer is reset.
- When the door switch signal changes from OFF to ON while the timer is activated, the timer is discontinued and the 45 second timer is reset.
- When the one of four door switch signals changes from OFF to ON while the timer is activated, the timer is discontinued and the 5 minute timer is reset.
- When all the door switch ON signals are input while the timer is activated, the timer is discontinued and the 45 second timer is reset.
Exterior lamp battery saver control mode and auto light delay off timer period can be changed by the function setting of CONSULT-II. Manufacturers Scan Tool (Nissan Consult-II)
When the lighting switch is turned from OFF to 2ND after headlamps are turned to off by the battery saver control, ground is supplied
- to smart entrance control unit terminals 20 and 58 from lighting switch terminal 11, and then,
- to headlamp LH and RH relays terminal 2 from smart entrance control unit terminals 21 and 59,
- through smart entrance control unit terminals 22 and 60 and
- through lighting switch terminal 12.
Then headlamps illuminate again.
AUTO LIGHT OPERATION
The auto light control system has an auto light sensor inside it that detects outside brightness. When lighting switch is in "AUTO" position, ground is supplied
- to smart entrance control unit terminal 23
- from lighting switch terminal 42.
When ignition switch is turn to "ON" or "START" position and Outside brightness is darker than prescribed level.
Ground is supplied
- to headlamp relay LH and RH terminals 2
- through smart entrance control unit terminal 21, 59 and 43, 64.
Then both headlamp relays and tail lamp relay are energized, headlamps (low or high) and tail lamps are illuminate according to switch position.
Auto light operation allows headlamps and tail lamps to go off when outside brightness is brighter than prescribed level.
NOTE: The delay time changes (maximum of 20 seconds) as the outside brightness changes.
For parking license and tail lamp auto operation, refer to "PARKING, LICENSE AND TAIL LAMPS".
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the low beams if the system is triggered. Refer to "VEHICLE SECURITY (THEFT WARNING) SYSTEM".
XENON HEADLAMP
Xenon type headlamp is adopted 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 advantage of the xenon type headlamp.
- The light produced by the headlamps is white color approximating 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 the human eye is most sensitive, which 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.