Nissan Pathfinder (2008 year). Manual — part 391
HEADLAMP (HI) CIRCUIT
EXL-27
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
3.
CHECK HEADLAMP (HI) CIRCUIT FOR OPEN
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector E123.
3.
Check continuity between the IPDM E/R harness connector (A)
and the front combination lamp harness connector (B).
Does continuity exist?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT COMBINATION LAMP (HI) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO
>> Repair the harness.
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
55
E11
1
Yes
RH
56
E107
1
ALLIA0623GB
Connector
Terminal
—
Continuity
LH
E11
2
Ground
Yes
RH
E107
2
ALLIA0624GB
EXL-28
< COMPONENT DIAGNOSIS >
HEADLAMP (LO) CIRCUIT
HEADLAMP (LO) CIRCUIT
Description
INFOID:0000000001712380
The IPDM E/R (intelligent power distribution module engine room) controls the headlamp low relay based on
inputs from the BCM via the CAN communication lines. When the headlamp low relay is energized, power
flows through fuses 40 and 41, located in the IPDM E/R. Power then flows to the front combination lamps to
the headlamp low beam.
Component Function Check
INFOID:0000000001712381
1.
CHECK HEADLAMP (LO) OPERATION
WITHOUT CONSULT-III
1.
Start IPDM E/R auto active test. Refer to
PCS-10, "Diagnosis Description"
2.
Check that the headlamp is turned ON.
NOTE:
HI/LO is repeated 1 second each when using the IPDM E/R auto active test.
CONSULT-III
1.
Select "EXTERNAL LAMP" of IPDM E/R active test item.
2.
With the test items operating, check that the headlamp is turned ON.
Is the headlamp turned ON?
YES
>> Headlamp (LO) is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001712382
1.
CHECK HEADLAMP (LO) FUSES
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not open.
Is the fuse open?
YES
>> Repair the harness and replace the fuse.
NO
>> GO TO 2
2.
CHECK HEADLAMP (LO) OUTPUT VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connector.
3.
Turn the ignition switch ON.
4.
Turn the low beam headlamps ON.
5.
With the low beam headlamps ON, check the voltage between
the combination lamp connector and ground.
Is voltage reading as specified?
YES
>> GO TO 4
NO
>> GO TO 3
LO
: Headlamp ON
OFF
: Headlamp OFF
Unit
Location
Fuse No.
Capacity
Headlamp LO (LH)
IPDM E/R
40
15A
Headlamp LO (RH)
IPDM E/R
41
15A
(+)
(
−
)
Voltage
Connector
Terminal
LH
E11
3
Ground
Battery voltage
RH
E107
3
ALLIA0625GB
HEADLAMP (LO) CIRCUIT
EXL-29
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
3.
CHECK HEADLAMP (LO) CIRCUIT FOR OPEN
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check continuity between the IPDM E/R harness connector and
the front combination lamp harness connector.
Does continuity exist?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT COMBINATION LAMP (LO) GROUND CIRCUIT
Check continuity between the front combination lamp harness con-
nector terminal and ground.
Does continuity exist?
YES
>> Inspect the headlamp bulb.
NO
>> Repair the harness.
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
52
E11
3
Yes
RH
54
E107
3
ALLIA0626GB
Connector
Terminal
—
Continuity
LH
E11
2
Ground
Yes
RH
E107
2
ALLIA0624GB
EXL-30
< COMPONENT DIAGNOSIS >
FRONT FOG LAMP CIRCUIT
FRONT FOG LAMP CIRCUIT
Description
INFOID:0000000001712383
The IPDM E/R (intelligent power distribution module engine room) controls the front fog lamp relay based on
inputs from the BCM via the CAN communication lines. When the front fog lamp relay is energized, power
flows from the front fog lamp relay in the IPDM E/R to the front fog lamps.
Component Function Check
INFOID:0000000001712384
1.
CHECK FRONT FOG LAMP OPERATION
WITHOUT CONSULT-III
1.
Activate IPDM E/R auto active test. Refer to
PCS-10, "Diagnosis Description"
2.
Check that the front fog lamp is turned ON.
CONSULT-III
1.
Select "EXTERNAL LAMP" of IPDM E/R active test item.
2.
With operating the test items, Check that the front fog lamp is turned ON.
Is the front fog lamp turned ON?
YES
>> Front fog lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001712385
1.
CHECK FRONT FOG LAMP FUSE
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not open.
Is the fuse open?
YES
>> Repair the harness and replace the fuse.
NO
>> GO TO 2
2.
CHECK FRONT FOG LAMP OUTPUT VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the front fog lamp connector.
3.
Turn the ignition switch ON.
4.
Turn the front fog lamps ON.
5.
Check the voltage between the fog lamp connector and ground.
Are the voltage readings as specified?
YES
>> GO TO 4
NO
>> GO TO 3
3.
CHECK FRONT FOG LAMP OPEN CIRCUIT
FOG
: Front fog lamp ON
OFF
: Front fog lamp OFF
Unit
Location
Fuse No.
Capacity
Front fog lamp
IPDM E/R
56
20A
(+)
(
−
)
Voltage
Connector
Terminal
LH
E101
1
Ground
Battery voltage
RH
E102
1
ALLIA0627GB
FRONT FOG LAMP CIRCUIT
EXL-31
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
3.
Check continuity between the IPDM E/R harness connector and
the front fog lamp harness connector.
Does continuity exist?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK FRONT FOG LAMP GROUND CIRCUIT
1.
Disconnect the front fog lamp connector.
2.
Check continuity between the front fog lamp harness connector
terminal and ground.
Does continuity exist?
YES
>> Inspect the fog lamp bulb.
NO
>> Repair the harness.
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E123
50
E101
1
Yes
RH
51
E102
1
ALLIA0628GB
Connector
Terminal
—
Continuity
LH
E101
2
Ground
Yes
RH
E102
2
ALLIA0629GB
EXL-32
< COMPONENT DIAGNOSIS >
PARKING LAMP CIRCUIT
PARKING LAMP CIRCUIT
Description
INFOID:0000000001712386
The IPDM E/R (intelligent power distribution module engine room) controls the tail lamp relay based on inputs
from the BCM via the CAN communication lines. When the tail lamp relay is energized, power flows through
fuse 37, located in the IPDM E/R. Power then flows to the front and rear combination lamps.
Component Function Check
INFOID:0000000001712387
1.
CHECK PARKING LAMP OPERATION
WITHOUT CONSULT-III
1.
Activate IPDM E/R auto active test. Refer to
PCS-10, "Diagnosis Description"
2.
Check that the parking lamp is turned ON.
CONSULT-III
1.
Select "EXTERNAL LAMP" of IPDM E/R active test item.
2.
With operating the test items, check that the parking lamp is turned ON.
Is the parking lamp turned ON?
YES
>> Parking lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001712388
1.
CHECK PARKING LAMP FUSES
1.
Turn the ignition switch OFF.
2.
Check that the following fuses are not open.
Is the fuse open?
YES
>> Repair the harness and replace the fuse.
NO
>> GO TO 2
2.
CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)
1.
Turn the ignition switch OFF.
2.
Disconnect the front parking lamp connectors, front side marker lamp connectors, rear combination lamp
connectors and license plate lamp connectors.
3.
Turn the ignition switch ON.
4.
Turn the parking lamps ON.
5.
With the parking lamps ON, check voltage between the front
parking lamp connectors and ground.
TAIL
: Parking lamp ON
OFF
: Parking lamp OFF
Unit
Location
Fuse No.
Capacity
Parking lamps
IPDM E/R
36
10A
37
10A
(+)
(
−
)
Voltage
Connector
Terminal
LH
E27
2
Ground
Battery voltage
RH
E111
ALLIA0630GB
PARKING LAMP CIRCUIT
EXL-33
< COMPONENT DIAGNOSIS >
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
6.
With the parking lamps ON, check voltage between the front
side marker lamp connectors and ground.
7.
With the parking lamps ON, check voltage between the rear
combination lamp connectors and ground.
8.
With the parking lamps ON, check voltage between the license
plate lamp connector and ground
Are voltage readings as specified?
YES
>> GO TO 4
NO
>> GO TO 3
3.
CHECK PARKING, LICENSE PLATE AND TAIL LAMP CIRCUIT (OPEN)
1.
Turn the ignition switch OFF.
2.
Disconnect IPDM E/R connector.
(+)
(
−
)
Voltage
Connector
Terminal
LH
E17
1
Ground
Battery voltage
RH
E108
ALLIA0631GB
(+)
(
−
)
Voltage
Connector
Terminal
LH
B35
1
Ground
Battery voltage
RH
B105
ALLIA0632GB
(+)
(
−
)
Voltage
Connector
Terminal
LH
D506
1
Ground
Battery voltage
RH
D507
ALLIA0633GB
EXL-34
< COMPONENT DIAGNOSIS >
PARKING LAMP CIRCUIT
3.
Check continuity between the IPDM E/R harness connector
(A)(B) and the front parking lamp harness connector (C).
4.
Check continuity between the IPDM E/R harness connector
(A)(B) and the front side marker lamp harness connector (C).
5.
Check continuity between the IPDM E/R harness connector (A)
and the rear combination lamp harness connector (B).
Connector
Terminal
Connector
Terminal
Continuity
LH
A: E121
28
C: E27
2
Yes
RH
B: E123
49
C: E111
ALLIA0634GB
Connector
Terminal
Connector
Terminal
Continuity
LH
A: E121
28
C: E17
1
Yes
RH
B: E123
49
C: E108
ALLIA0636GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
LH
E124
57
B35
1
Yes
RH
B105
ALLIA0637GB
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