Nissan Pathfinder (2008 year). Manual — part 389
AUTO LIGHT SYSTEM
EXL-11
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AUTO LIGHT SYSTEM
System Diagram
INFOID:0000000001712353
System Description
INFOID:0000000001712354
• 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 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 and
headlamps in accordance with the ambient light. Sensitivity can be adjusted in four steps. For the details of the
setting, Refer to
EXL-21, "EXTERNAL LAMP : CONSULT-III Function"
ALLIA0381ZZ
EXL-12
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AUTO LIGHT SYSTEM
Component Parts Location
INFOID:0000000001712355
Component Description
INFOID:0000000001712356
AUTO LIGHT OPERATION
The auto light system operates the low beam and high beam headlamps, parking lamps, tail lamps and license
plate lamps. The BCM monitors the lighting switch (combination switch) position as a part of the BCM combi-
nation switch reading function. When the lighting switch is in the AUTO position, the BCM automatically turns
the lamps ON/OFF according to ambient light brightness.
NOTE:
Timing for when lamps turn ON/OFF can be changed by the function setting of CONSULT-III. Refer to
"EXTERNAL LAMP : CONSULT-III Function"
.
COMBINATION SWITCH READING FUNCTION
1.
IPDM E/R E122, E123, E124
2.
BCM M18, M19, M20 (view with instru-
ment panel removed)
3.
Combination switch M28
4.
Combination meter M24
5.
Rear door switch
LH B18
RH B116
6.
Optical sensor M145
7.
Back door cinching latch unit (door ajar
switch) D502
Front door switch
LH B8
RH B108
WKIA4959E
AUTO LIGHT SYSTEM
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PARKING, LICENSE PLATE AND TAIL LAMPS OPERATION
EXL-14
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FRONT FOG LAMP
FRONT FOG LAMP
System Diagram
INFOID:0000000001712357
System Description
INFOID:0000000001712358
The front fog lamps are activated with the lighting switch (combination 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.
Component Parts Location
INFOID:0000000001712359
Component Description
INFOID:0000000001712360
FRONT FOG LAMP OPERATION
When the lighting switch is in front fog lamp ON position and also in 1ST or 2ND position or AUTO position
(headlamp is ON), the BCM detects FR FOG ON and the HEAD LAMP1, 2 ON or the AUTO LIGHT ON. The
BCM sends a front fog lamp request ON signal via the CAN communication lines to the IPDM E/R. The IPDM
E/R then turns ON the front fog lamp relay sending power to the front fog lamps.
COMBINATION SWITCH READING FUNCTION
JPLIA0004GB
1.
IPDM E/R E122, E123, E124
2.
BCM M18, M20 (view with instrument
panel removed)
3.
Combination switch M28
4.
Combination meter M24
WKIA4960E
TURN SIGNAL AND HAZARD WARNING LAMPS
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TURN SIGNAL AND HAZARD WARNING LAMPS
System Diagram
INFOID:0000000001712361
System Description
INFOID:0000000001712362
TURN SIGNAL OPERATION
When the turn signal switch is in LH or RH position with the ignition switch in ON position, the BCM detects the
TURN RH or TURN LH ON request. The BCM outputs the flasher signal 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 ON position, the BCM detects the hazard switch signal ON. The BCM outputs the
flasher signal (right and left). The BCM sends a hazard indicator signal ON request via the CAN communica-
tion lines to the combination meter. The combination meter then activates the hazard indicator and audible
buzzer.
REMOTE KEYLESS ENTRY OPERATION
The remote keyless entry receiver transmits a hazard request signal to the BCM, then BCM controls hazard
lamps.
Refer to
.
COMBINATION SWITCH READING FUNCTION
AWLIA0006GB
EXL-16
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TURN SIGNAL AND HAZARD WARNING LAMPS
Component Parts Location
INFOID:0000000001712363
Component Description
INFOID:0000000001712364
1.
BCM M18, M20 (view with instrument
panel removed)
2.
Combination switch M28
3.
Combination meter M24
4.
Hazard switch M55
WKIA4961E
Part name
Description
BCM
Controls turn signal and hazard flasher operation.
Combination switch
Lighting and turn signal switch requests are output to the BCM.
Hazard switch
Hazard flasher request signal is output to the BCM.
Combination meter
Outputs turn and hazard indicator as requested by the BCM.
PARKING, LICENSE PLATE AND TAIL LAMPS
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PARKING, LICENSE PLATE AND TAIL LAMPS
System Diagram
INFOID:0000000001712365
System Description
INFOID:0000000001712366
PARKING, LICENCE PLATE AND TAIL LAMPS OPERATION
When the lighting switch is in 1ST position, BCM detects the LIGHTING SWITCH 1ST POSITION ON. The
BCM sends a parking light ON request via the CAN communication 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 lighting switch (combination 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-III. Refer to
EXL-21, "EXTERNAL LAMP : CONSULT-III Function"
.
COMBINATION SWITCH READING FUNCTION
Component Parts Location
INFOID:0000000001712367
ALLIA0622GB
1.
IPDM E/R E121, E122, E123, E124
2.
BCM M18, M20 (view with instrument
panel removed)
3.
Combination switch M28
4.
Combination meter M24
WKIA4963E
EXL-18
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PARKING, LICENSE PLATE AND TAIL LAMPS
Component Description
INFOID:0000000001712368
Part name
Description
BCM
• Recieves lighting switch requests via BCM combination switch
reading function.
• Sends parking light request signal to the IPDM E/R.
IPDM E/R
Activates the tail lamp relay upon request of the BCM.
Combination switch (lighting switch)
Outputs lighting requests to the BCM.
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