Nissan Pathfinder (2005 year). Instruction — part 330
AUTO LIGHT SYSTEM
LT-45
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AUTO LIGHT SYSTEM
PFP:28491
Component Parts and Harness Connector Location
EKS009KC
LKIA0557E
LT-46
AUTO LIGHT SYSTEM
2005 Pathfinder
System Description
EKS009KD
Automatically turns on/off the parking lamps and the headlamps in accordance with ambient light.
Timing for when the lamps turn on/off can be selected using four modes.
OUTLINE
The auto light control system uses an optical sensor that detects outside brightness.
When the lighting switch is in "AUTO" position, it automatically turns on/off the parking lamps and the head-
lamps in accordance with the ambient light. Sensitivity can be adjusted in four steps. For the details of the set-
ting, refer to
LT-53, "SETTING CHANGE FUNCTIONS"
.
Optical sensor ground is supplied
●
to optical sensor terminal 3
●
through BCM (body control module) terminal 18 .
When ignition switch is turned to "ON" position and when outside brightness is darker than prescribed level,
input is supplied
●
to BCM terminal 58
●
from optical sensor terminal 4.
The headlamps will then illuminate. For a description of headlamp operation, refer to
.
COMBINATION SWITCH READING FUNCTION
Refer to
LT-92, "Combination Switch Reading Function"
.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the AUTO position, and the ignition switch is turned from
ON or ACC to OFF, and one of the front doors is opened, the battery saver control feature is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
DELAY TIMER FUNCTION
When the ignition switch is ON and auto light switch is ON, the BCM turns on/off the headlamps. In delay timer
function, ignition is OFF, auto light sensor power source is OFF and the headlamps are not turned on/off by the
BCM. On condition that:
●
when the state of ignition switch ON or ACC is ON and output judgment by auto light function is headlamp
ON changes to ignition switch and ACC are OFF and any door switch is ON, output judgment by BCM
should be headlamp ON for 5 minutes by timer. After time out, output judgment by BCM should be head-
lamp OFF.
●
when the state of any door switch is turned to ON from OFF while 45 second or 5 minute timer is counting,
timer stops, and restarts counting for 5 minutes, then BCM judges output as headlamp ON. After time out,
BCM judges output as headlamp OFF.
●
when the state of front door switch (driver side), front door switch (passenger side), rear door switch LH,
rear door switch RH or back door latch (door ajar switch) is ON turns to all door switches are OFF while 45
second or 5 minute timer is counting, timer stops, and restarts counting for 45 seconds, then BCM judges
output as headlamp ON. After timer out, BCM judges output as headlamp OFF.
●
when the state is ignition switch ON or ACC is ON or auto light switch OFF while timer is counting, timer
stops counting and BCM turns on/off lamps according to headlamp function, front fog lamp function, auto
light function and headlamp battery save function.
Delay timer control mode can be changed by the function setting of CONSULT-II.
CAN Communication System Description
EKS009KE
Refer to
.
Major Components and Functions
EKS009KF
Components
Functions
BCM
●
Turns on/off circuits of tail light and headlamp according to signals from light sensor, lighting switch
(AUTO), driver door switch, passenger door switch, rear door switches, back door switch, and igni-
tion switch (ON, OFF).
Optical sensor
●
Converts ambient light (lux) to voltage, and sends it to BCM. (Detects lightness of 50 to 1,300 lux)
AUTO LIGHT SYSTEM
LT-47
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LT
2005 Pathfinder
Schematic
EKS009KG
WKWA2026E
LT-48
AUTO LIGHT SYSTEM
2005 Pathfinder
Wiring Diagram — AUTO/L —
EKS009KH
WKWA2027E
AUTO LIGHT SYSTEM
LT-49
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LT
2005 Pathfinder
WKWA2028E
LT-50
AUTO LIGHT SYSTEM
2005 Pathfinder
WKWA2029E
AUTO LIGHT SYSTEM
LT-51
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2005 Pathfinder
Terminals and Reference Values for BCM
EKS009KI
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
(Approx.)
Ignition
switch
Operation or condition
2
P
Combination switch input 5
ON
Lighting, turn, wiper OFF
Wiper dial position 4
3
SB
Combination switch input 4
ON
Lighting, turn, wiper OFF
Wiper dial position 4
4
V
Combination switch input 3
ON
Lighting, turn, wiper OFF
Wiper dial position 4
5
L
Combination switch input 2
ON
Lighting, turn, wiper OFF
Wiper dial position 4
6
R
Combination switch input 1
12
LG
Front door switch RH signal
OFF
Front door
switch RH
ON (open)
0V
OFF (closed)
Battery voltage
13
L
Rear door switch RH and
back door switch signal
OFF
Rear door
switch RH or
back door
switch
ON (open)
0V
OFF (closed)
Battery voltage
18
BR
Sensor ground
ON
—
0V
32
O
Combination switch output 5
ON
Lighting, turn, wiper OFF
Wiper dial position 4
33
GR
Combination switch output 4
ON
Lighting, turn, wiper OFF
Wiper dial position 4
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
LT-52
AUTO LIGHT SYSTEM
2005 Pathfinder
NOTE:
Optical sensor must be completely subjected to work lamp light. If the optical sensor is insufficiently illumi-
nated, the measured value may not satisfy standard.
Terminals and Reference Values for IPDM E/R
EKS009KJ
34
G
Combination switch output 3
ON
Lighting, turn, wiper OFF
Wiper dial position 4
35
BR
Combination switch output 2
ON
Lighting, turn, wiper OFF
Wiper dial position 4
36
LG
Combination switch output 1
38
W/R
Ignition switch (ON)
ON
—
Battery voltage
39
L
CAN-H
—
—
—
40
P
CAN-L
—
—
—
43
Y
Back door switch signal
OFF
Back door
switch
ON (open)
0V
OFF (closed)
Battery voltage
47
GR
Front door switch LH signal
OFF
Front door
switch LH
ON (open)
0V
OFF (closed)
Battery voltage
48
P
Rear door switch LH signal
OFF
Rear door
switch LH
ON (open)
0V
OFF (closed)
Battery voltage
58
W
Optical sensor signal
ON
When optical sensor is illumi-
nated
3.1V or more
Note
When optical sensor is not illumi-
nated
0.6V or less
67
B
Ground
ON
—
0V
70
W
Battery power supply
OFF
—
Battery voltage
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
(Approx.)
Ignition
switch
Operation or condition
SKIA5291E
SKIA5292E
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
(Approx.)
Ignition
switch
Operation or condition
38
B
Ground
ON
—
0V
39
L
CAN-H
—
—
—
40
P
CAN-L
—
—
—
52
P
Headlamp low (LH)
ON
Lighting switch
2ND position
OFF
0V
ON
Battery voltage
54
R
Headlamp low (RH)
ON
Lighting switch
2ND position
OFF
0V
ON
Battery voltage
55
G
Headlamp high (LH)
ON
Lighting switch
HIGH or PASS
position
OFF
0V
ON
Battery voltage
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