Nissan Pathfinder (2008 year). Manual - part 391

HEADLAMP (HI) CIRCUIT

EXL-27

< COMPONENT DIAGNOSIS >

C

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A

B

EXL

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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 

EXL-28, "Diagnosis Procedure"

.

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

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A

B

EXL

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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 

EXL-30, "Diagnosis Procedure"

. 

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

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F

G

H

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A

B

EXL

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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 

EXL-32, "Diagnosis Procedure"

.

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

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A

B

EXL

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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