Nissan Pathfinder. Manual — part 580
EXL-8
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
HEADLAMP SYSTEM
HEADLAMP SYSTEM : System Diagram
INFOID:0000000009175333
HEADLAMP SYSTEM : System Description
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LOW BEAM OPERATION
When the lighting switch is in the AUTO (if equipped and activated) or headlamp position, the BCM receives
input requesting the headlamps to illuminate. This input is communicated to the IPDM E/R across the CAN
communication lines. The CPU of the IPDM E/R controls the headlamp low relay coil which supplies power to
the low beam headlamps.
HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION
With the lighting switch in the AUTO (if equipped and activated) or headlamp 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 signal 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 off the HIGH
BEAM indicator. The CPU of the IPDM E/R controls the headlamp high relay coil which supplies power to the
high beam headlamps.
The combination meter receives a high beam request signal (ON) through the CAN communication lines and
turns the high beam indicator lamp ON.
EXTERIOR LAMP BATTERY SAVER CONTROL
With the combination switch (lighting and turn signal switch) in the AUTO (if equipped and activated) parking
lamp or headlamp 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 45 seconds, unless the lighting switch position is
changed. If the lighting switch position is changed, then the headlamps are turned off.
AUTO LIGHT SYSTEM
AWLIA1980GB
SYSTEM
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< SYSTEM DESCRIPTION >
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AUTO LIGHT SYSTEM : System Diagram
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AUTO LIGHT SYSTEM : System Description
INFOID:0000000009175336
• 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. And optical sensor converts light (lux) to volt-
age, 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
BCS-18, "HEADLAMP : CONSULT Function (BCM - HEADLAMP)"
.
WIPER LINKED AUTO LIGHTING FUNCTION (if equipped)
With the lighting switch in the AUTO position, the BCM will turn on the exterior lamps after detecting 4 opera-
tions of the front wiper. The BCM will turn off the exterior lamps 3 seconds after the front wiper switch is turned
to the OFF position.
DAYTIME RUNNING LIGHT SYSTEM
DAYTIME RUNNING LIGHT SYSTEM : System Diagram
INFOID:0000000009175337
AWLIA1957GB
AWLIA1965GB
EXL-10
< SYSTEM DESCRIPTION >
SYSTEM
DAYTIME RUNNING LIGHT SYSTEM : System Description
INFOID:0000000009175338
System Description
The daytime light system is equipped with a daytime light control that activates the daytime lights within the
front fog lamp assembly when the engine is operating. If the parking brake is applied, the daytime lights will
turn OFF. The daytime lights will turn ON when the parking brake is released.
OPERATION
The BCM monitors inputs from the parking brake switch and the combination switch (lighting and turn signal
switch) to determine when to operate 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 daytime lights.
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM : System Diagram
INFOID:0000000009175339
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM : System Description
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TURN SIGNAL OPERATION
When the combination switch (lighting and turn signal switch) is in LH or RH turn position with the ignition
switch in the ON position, the BCM receives input requesting the turn RH or turn LH lamps to illuminate. The
BCM controls the turn signal power to the respective turn signal lamp. The BCM also sends a turn indicator
signal ON request via the CAN communication lines to the combination meter. The combination meter then
activates the appropriate turn signal indicator and audible buzzer.
HAZARD LAMP OPERATION
When the hazard switch is in the ON position, the BCM receives input requesting the hazard lamps illuminate.
The BCM controls the turn signal power to both the LH and RH turn signal lamps. The BCM sends a hazard
indicator signal ON request via the CAN communication lines to the combination meter. The combination
meter then activates both the LH and RH turn signal indicators and audible buzzer.
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM
PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : System Di-
AWLIA1721GB
SYSTEM
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PARKING, LICENSE PLATE, SIDE MARKER AND TAIL LAMP SYSTEM : System De-
scription
INFOID:0000000009175342
PARKING, LICENSE PLATE AND TAIL LAMPS OPERATION
With the lighting switch is in the AUTO (if equipped and activated) or parking lamp position, the BCM receives
input requesting the parking lamps to illuminate. The BCM sends a parking light ON request via the CAN com-
munication lines to the IPDM E/R. The IPDM E/R then activates the tail lamp relay which sends power to the
parking and instrument illumination circuits.
EXTERIOR LAMP BATTERY SAVER CONTROL
With the combination switch (lighting and turn signal switch) in the AUTO (if equipped and activated) or park-
ing lamp position and the ignition switch is turned from ON or ACC to OFF, the battery saver feature is acti-
vated.
Under this condition, the exterior lamps remain illuminated for 45 seconds unless the lighting switch position is
changed. If the lighting switch position is changed, then the exterior lamps are turned off.
FRONT FOG LAMP SYSTEM
FRONT FOG LAMP SYSTEM : System Diagram
INFOID:0000000009175343
FRONT FOG LAMP SYSTEM : System Description
INFOID:0000000009175344
The front fog lamps are activated with the combination switch (lighting and turn signal switch). The lighting
switch signal to the BCM is monitored with the BCM combination switch reading function. When the fog lamps
are turned ON with the lighting switch, the BCM sends a front fog lamp request signal via CAN communication
lines to the IPDM E/R. The IPDM E/R grounds the front fog lamp relay coil to activate the front fog lamps.
AWLIA1723GB
AWLIA1719GB
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