Nissan Pathfinder (2008 year). Manual — part 392
PARKING LAMP CIRCUIT
EXL-35
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6.
Check continuity between the IPDM E/R harness connector (A)
and license plate lamp connector (B).
Are continuity test results as specified?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK PARKING, LICENSE AND TAIL LAMP GROUND CIRCUITS
1.
Check continuity between the front parking lamp harness con-
nectors and ground.
2.
Check continuity between the front side marker lamp harness
connectors and ground.
3.
Check continuity between the rear combination lamp harness
connectors and ground.
A
B
Continuity
Connector
Terminal
Connector
Terminal
E124
57
D506
1
Yes
D507
ALLIA0638GB
Connector
Terminal
—
Continuity
LH
E27
1
Ground
Yes
RH
E111
ALLIA0639GB
Connector
Terminal
—
Continuity
LH
E17
2
Ground
Yes
RH
E108
ALLIA0640GB
Connector
Terminal
—
Continuity
LH
B35
5
Ground
Yes
RH
B105
ALLIA0641GB
EXL-36
< COMPONENT DIAGNOSIS >
PARKING LAMP CIRCUIT
4.
Check continuity between the license plate lamp harness con-
nectors and ground.
Does continuity exist?
YES
>> Inspect the parking lamp bulb.
NO
>> Repair the harness.
Connector
Terminal
—
Continuity
D506
2
Ground
Yes
D507
ALLIA0642GB
TURN SIGNAL LAMP CIRCUIT
EXL-37
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TURN SIGNAL LAMP CIRCUIT
Description
INFOID:0000000001712389
The BCM monitors inputs from the combination switch to determine when to activate the turn signals. The
BCM outputs voltage direction to the left and right turn signals during turn signal operation or both during haz-
ard warning operation. The BCM sends a turn signal indicator request to the combination meter via the CAN
communication lines.
The BCM performs the fast flasher operation (fail-safe) if any bulb or harness of the turn signal lamp circuit is
open.
NOTE:
Turn signal lamp blinks at normal speed when using the hazard warning lamp.
Component Function Check
INFOID:0000000001712390
1.
CHECK TURN SIGNAL LAMP
CONSULT-III
1.
Select "FLASHER" of BCM (FLASHER) active test item.
2.
With operating the test items, check that the turn signal lamp blinks.
Does the turn signal lamp blink?
YES
>> Turn signal lamp circuit is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001712391
1.
CHECK TURN SIGNAL LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES
>> GO TO 2
NO
>> Replace the bulb.
2.
CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE
1.
Turn the ignition switch OFF.
2.
Disconnect the front combination lamp connectors and the rear
combination lamp connector.
3.
Turn the ignition switch ON.
4.
With turn signal switch operating, check the voltage between the
BCM harness connector M20 and ground.
Is voltage reading as specified?
YES
>> GO TO 3
NO
>> Replace BCM. Refer to
BCS-54, "Removal and Installation"
LH
: Turn signal lamp LH blinking
RH
: Turn signal lamp RH blinking
OFF
: The turn signal lamp OFF
(+)
(
−
)
Voltage
Connector
Terminal
M20
LH
60
Ground
RH
61
ALLIA0402ZZ
PKID0926E
EXL-38
< COMPONENT DIAGNOSIS >
TURN SIGNAL LAMP CIRCUIT
3.
CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN
1.
Turn the ignition switch OFF.
2.
Disconnect BCM connector M20.
3.
Check continuity between the BCM harness connector M20 and
the front combination lamps.
4.
Check continuity between the BCM harness connector M20 and
the rear combination lamp connectors.
Are continuity test results as specified?
YES
>> GO TO 4
NO
>> Repair the harnesses or connectors.
4.
CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between the BCM harness connector M20 and
ground.
Does continuity exist?
YES
>> Repair the harnesses or connectors.
NO
>> GO TO 5
5.
CHECK TURN SIGNAL LAMP GROUND CIRCUIT
1.
Check continuity between the front combination lamp harness
connectors and ground.
A
B
Continuity
Connector
Terminal
Connector
Terminal
Front LH
M20
60
E27
3
Yes
Front RH
61
E111
ALLIA0643GB
A
B
Continuity
Connector
Terminal
Connector
Terminal
Rear LH
M20
60
B35
4
Yes
Rear RH
61
B105
4
ALLIA0644GB
Connector
Terminal
—
Continuity
LH
M20
60
Ground
No
RH
61
ALLIA0404GB
Connector
Terminal
—
Continuity
Front LH
E27
1
Ground
Yes
Front RH
E111
ALLIA0639GB
TURN SIGNAL LAMP CIRCUIT
EXL-39
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2.
Check continuity between the rear combination lamp harnness
connectors and ground.
Are continuity test results as specified?
YES
>> Replace the malfunctioning lamp.
NO
>> Repair the harnesses or connectors.
Connector
Terminal
—
Continuity
Rear LH
B35
5
Ground
Yes
Rear RH
B105
ALLIA0641GB
EXL-40
< COMPONENT DIAGNOSIS >
OPTICAL SENSOR
OPTICAL SENSOR
Description
INFOID:0000000001712392
The optical sensor converts the outside brightness (lux) to voltage and transmits the optical sensor signal to
the BCM.
Component Function Check
INFOID:0000000001712393
1.
CHECK OPTICAL SENSOR SIGNAL BY CONSULT-III
CONSULT-III
1.
Turn the ignition switch ON.
2.
Select "OPTICAL SENSOR" of BCM (HEAD LAMP) DATA MONITOR item.
3.
Turn the lighting switch to AUTO.
4.
With the optical sensor illuminating, check the monitor status.
*: Illuminates the optical sensor. The value may be less than the standard value if brightness is weak.
Is the item status normal?
YES
>> Optical sensor is normal.
NO
>> Refer to
.
Diagnosis Procedure
INFOID:0000000001712394
1.
CHECK OPTICAL SENSOR GROUND CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect BCM connector M18 and optical sensor connector
M145.
3.
Check continuity between BCM harness connector M18 (A) ter-
minal 18 and optical sensor harness connector M145 (B) termi-
nal 3.
4.
Check continuity between BCM harness connector M18 (A) ter-
minal 18 and ground.
Are continuity test results as specified?
YES
>> GO TO 2
NO
>> Repair harness or connector.
2.
CHECK OPTICAL SENSOR SIGNAL CIRCUIT
Monitor item
Condition
Voltage
OPTICAL SENSOR
When illuminating
3.1V or more *
When shutting off light
0.6V or less
A
B
Connector
Terminal
Connector
Terminal
Continuity
M18
18
M145
3
Yes
A
—
Continuity
Connector
Terminal
M18
18
Ground
No
ALLIA0406GB
OPTICAL SENSOR
EXL-41
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1.
Check continuity between BCM harness connector M20 (A) ter-
minal 58 and optical sensor harness connector M145 (B) termi-
nal 4.
2.
Check continuity between BCM harness connector M20 (A) ter-
minal 58 and ground.
Are the continuity test results as specified?
YES
>> Replace the optical sensor. Refer to
EXL-114, "Removal and Installation"
NO
>> Repair harness or connector.
A
B
Connector
Terminal
Connector
Terminal
Continuity
M20
58
M145
4
Yes
A
—
Continuity
Connector
Terminal
M20
58
Ground
No
ALLIA0407GB
EXL-42
< COMPONENT DIAGNOSIS >
HEADLAMP
HEADLAMP
Wiring Diagram
INFOID:0000000001712395
ALLWA0091GB
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