Nissan Pathfinder (2007 year). Instruction — part 301
AUTO LIGHT SYSTEM
LT-49
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LT
2007 Pathfinder
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
. Recheck sensor output with CONSULT-II.
If NG, replace BCM. Refer to
BCS-25, "Removal and Installation"
.
NG
>> Repair harness or connector.
58 - 4
: Continuity should exist.
58 - Ground
: Continuity should not exist.
WKIA3329E
LT-50
AUTO LIGHT SYSTEM
2007 Pathfinder
Removal and Installation
EKS00FVE
OPTICAL SENSOR
Removal
1.
Using a thin blade screwdriver, gently pry upward to release optical sensor from defrost grille.
2.
Disconnect optical sensor connector.
Installation
Installation is in the reverse order of removal.
LKIA0571E
FRONT FOG LAMP
LT-51
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LT
2007 Pathfinder
FRONT FOG LAMP
PFP:26150
Component Parts and Harness Connector Location
EKS00FVF
System Description
EKS00FVG
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 ignition relay, located in the IPDM E/R, and
●
to front fog lamp relay, located in the IPDM E/R, and
●
through 20A fuse (No. 53, located in the IPDM E/R)
●
to CPU of 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
●
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.
WKIA4960E
1.
IPDM E/R
E118, E119, E120, E121,
E122, E123, E124
2.
BCM
M18, M19, M20
(view with instrument lower panel RH removed)
3.
Combination switch (lighting switch)
M28
4.
Combination meter
M24
LT-52
FRONT FOG LAMP
2007 Pathfinder
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
●
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
BCS-3, "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
EKS00FVH
Refer to
FRONT FOG LAMP
LT-53
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LT
2007 Pathfinder
Wiring Diagram — F/FOG —
EKS00FVI
WKWA5440E
LT-54
FRONT FOG LAMP
2007 Pathfinder
WKWA3082E
FRONT FOG LAMP
LT-55
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LT
2007 Pathfinder
Terminals and Reference Values for BCM
EKS00FVJ
Refer to
LT-12, "Terminals and Reference Values for BCM"
Terminals and Reference Values for IPDM E/R
EKS00FVK
Refer to
PG-27, "Terminals and Reference Values for IPDM E/R"
.
How to Proceed With Trouble Diagnosis
EKS00FVL
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.
Preliminary Check
EKS00FVM
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR BCM
Refer to
BCS-16, "BCM Power Supply and Ground Circuit Check"
CHECK POWER SUPPLY AND GROUND CIRCUIT FOR IPDM E/R
Refer to
PG-29, "IPDM E/R Power/Ground Circuit Inspection"
CONSULT-II Function (BCM)
EKS00FVN
Refer to
LT-12, "CONSULT-II Function (BCM)"
CONSULT-II Function (IPDM E/R)
EKS00KE0
Refer to
LT-13, "CONSULT-II Function (IPDM E/R)"
.
Front Fog Lamps Do Not Illuminate (Both Sides)
EKS00FVO
1.
INSPECT FOG LAMP FUSE
Inspect fog lamp 20A fuse (No. 56, located in IPDM E/R).
OK or NG
OK
>> GO TO 2.
NG
>> Repair fog lamp power supply circuit.
2.
CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "HEAD LAMP" data monitor,
make sure "FR FOG SW" turns ON-OFF linked with operation of
lighting switch.
OK or NG
OK
>> GO TO 3.
NG
>> Check lighting switch. Refer to
.
When lighting switch is in
FOG position
: FR FOG SW ON
SKIA5897E
LT-56
FRONT FOG LAMP
2007 Pathfinder
3.
FOG LAMP ACTIVE TEST
1.
Select "IPDM E/R" on CONSULT-II, and select "ACTIVE TEST"
on "SELECT DIAG MODE" screen.
2.
Select "EXTERNAL LAMPS" on "SELECT TEST ITEM" screen.
3.
Touch "FOG" on "ACTIVE TEST" screen.
4.
Make sure fog lamps operate.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 5.
4.
CHECK IPDM E/R
1.
Select "IPDM E/R" on CONSULT-II, and select "DATA MONI-
TOR" on "SELECT DIAG MODE" screen.
2.
Make sure "FR FOG REQ" turns ON when lighting switch is in
FOG position.
OK or NG
OK
>> Replace IPDM E/R. Refer to
.
NG
BCS-25, "Removal and Installa-
.
5.
IPDM E/R INSPECTION
1.
Disconnect fog lamp LH and RH.
2.
Start auto active test. Refer to
. When
front fog lamp relay is operating, check voltage between left/right
front fog lamp connector terminals and ground.
OK or NG
OK
>> Check front fog lamp bulbs and replace as necessary. Refer to
NG
>> Replace IPDM E/R. Refer to
PG-32, "Removal and Installation of IPDM E/R"
Front Fog Lamp Does Not Illuminate (One Side)
EKS00FVP
1.
BULB INSPECTION
Inspect bulb of lamp which does not illuminate.
OK or NG
OK
>> GO TO 2.
NG
>> Replace lamp bulb. Refer to
.
Fog lamps should operate.
WKIA1438E
When lighting switch is in
FOG position
: FR FOG REQ ON
SKIA5898E
Front fog lamp
(–)
Voltage
(Approx.)
(+)
Connector
Terminal
LH
E101
1
Ground Battery
voltage
RH
E102
WKIA3306E
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