Nissan Pathfinder (2005 year). Instruction — part 332
AUTO LIGHT SYSTEM
LT-61
C
D
E
F
G
H
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L
M
A
B
LT
2005 Pathfinder
Optical Sensor System Inspection
EKS009KQ
1.
CHECK OPTICAL SENSOR INPUT SIGNAL
With CONSULT-II
Select "BCM" on CONSULT-II. With "OPTICAL SENSOR" data mon-
itor, check difference in the voltage when the optical sensor is illumi-
nated and not illuminated.
NOTE:
Optical sensor must be completely subjected to work lamp light. If
the optical sensor is insufficiently illuminated, the measured value
may not satisfy the standard.
Without CONSULT-II
GO TO 2.
OK or NG
OK
>> Inspection End.
NG
>> GO TO 2.
2.
CHECK OPTICAL SENSOR SIGNAL GROUND CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect BCM connector and optical sensor connector.
3.
Check continuity (open circuit) between BCM harness connector
M18 terminal 18 and optical sensor harness connector M145
terminal 3.
4.
Check continuity (short circuit) between BCM harness connector
M18 terminal 18 and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair harness or connector.
3.
CHECK OPTICAL SENSOR SIGNAL CIRCUIT
1.
Check continuity (open circuit) between BCM harness connector
M20 terminal 58 and optical sensor harness connector M145
terminal 4.
2.
Check continuity (short circuit) between BCM harness connector
M20 terminal 58 and ground.
OK or NG
OK
>> Replace optical sensor. Refer to
Installation of Optical Sensor"
. Recheck sensor output
with CONSULT-II. If NG, replace BCM. Refer to
BCS-19, "Removal and Installation of BCM"
.
NG
>> Repair harness or connector.
Illuminated
OPTICAL SENSOR
: 3.1V or more
Not illuminated
OPTICAL SENSOR
: 0.6V or less
WKIA0486E
18 - 3
: Continuity should exist.
18 - Ground
: Continuity should not exist.
WKIA3328E
58 - 4
: Continuity should exist.
58 - Ground
: Continuity should not exist.
WKIA3329E
LT-62
AUTO LIGHT SYSTEM
2005 Pathfinder
Removal and Installation of Optical Sensor
EKS009KR
REMOVAL
1.
Using a thin blade screwdriver, gently pry upward to release optical sensor from defrost grille.
2.
Disconnect the optical sensor connector.
INSTALLATION
Installation is in the reverse order of removal.
LKIA0571E
FRONT FOG LAMP
LT-63
C
D
E
F
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A
B
LT
2005 Pathfinder
FRONT FOG LAMP
PFP:26150
Component Parts and Harness Connector Location
EKS009KS
System Description
EKS009KT
Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The light-
ing switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.
When the lighting switch is placed in the fog lamp position, the BCM (body control module) receives input sig-
nal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communi-
cated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication
lines. The CPU (central processing unit) of the IPDM E/R controls the front fog lamp relay coil. When acti-
vated, this relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times
●
to front fog lamp relay, located in the IPDM E/R, and
●
to ignition relay, located in the IPDM E/R, and
●
through 20A fuse (No. 53, located in the IPDM E/R)
●
to CPU in the IPDM E/R, and
●
through 50A fusible link (letter g , located in the fuse and fusible link box)
●
to BCM terminal 70.
When the ignition switch is in ON or START position, power is supplied
●
to ignition relay, located in the IPDM E/R, and
●
through 10A fuse [No. 1, located in the fuse block (J/B)]
●
to BCM terminal 38.
Ground is supplied
●
to BCM terminal 67
●
through grounds M57, M61 and M79, and
●
to IPDM E/R terminals 38 and 59
LKIA0558E
LT-64
FRONT FOG LAMP
2005 Pathfinder
●
through grounds E9, E15 and E24.
FOG LAMP OPERATION
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or
AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU of the IPDM E/R grounds the coil side of the fog lamp
relay. The fog lamp relay then directs power
●
through 20A fuse (No. 56, located in the IPDM E/R)
●
through IPDM E/R terminal 50
●
to front fog lamp LH terminal 1, and
●
through IPDM E/R terminal 51
●
to front fog lamp RH terminal 1.
Ground is supplied at all times
●
to front fog lamp LH and RH terminal 2
●
through grounds E9, E15 and E24.
With power and ground supplied, the front fog lamps illuminate.
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 2ND position (ON), the fog lamp switch is ON, and the
ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the fog lamps (and headlamps) remain illuminated for 5 minutes, then the fog lamps (and
headlamps) are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System Description
EKS009KU
Refer to
.
FRONT FOG LAMP
LT-65
C
D
E
F
G
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A
B
LT
2005 Pathfinder
Wiring Diagram — F/FOG —
EKS009KV
WKWA2030E
LT-66
FRONT FOG LAMP
2005 Pathfinder
WKWA2031E
FRONT FOG LAMP
LT-67
C
D
E
F
G
H
I
J
L
M
A
B
LT
2005 Pathfinder
Terminals and Reference Values for BCM
EKS009KW
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
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
34
G
Combination switch output 3
ON
Lighting, turn, wiper OFF
Wiper dial position 4
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E
LT-68
FRONT FOG LAMP
2005 Pathfinder
Terminals and Reference Values for IPDM E/R
EKS009KX
How to Proceed With Trouble Diagnosis
EKS009KY
1.
Confirm the symptom or customer complaint.
2.
Understand operation description and function description. Refer to
.
3.
Perform the Preliminary Check. Refer to
.
4.
Check symptom and repair or replace the cause of malfunction.
5.
Does the front fog lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6.
Inspection End.
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
—
—
—
67
B
Ground
ON
—
0V
70
W
Battery power supply (fusible link)
OFF
—
Battery voltage
Terminal
No.
Wire
color
Signal name
Measuring condition
Reference value
(Approx.)
Ignition
switch
Operation or condition
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
—
—
—
50
W
Front fog
lamp (LH)
ON
Lighting switch must be in the 2ND position
or AUTO position (LOW beam is ON) and
the front fog lamp switch must be ON
OFF
0V
ON
Battery voltage
51
V
Front fog
lamp (RH)
ON
Lighting switch must be in the 2ND position
or AUTO position (LOW beam is ON) and
the front fog lamp switch must be ON
OFF
0V
ON
Battery voltage
59
B
Ground
ON
—
0V
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