Nissan Xterra. Manual - part 392

EXL-56

< DTC/CIRCUIT DIAGNOSIS >

FRONT FOG LAMP CIRCUIT

FRONT FOG LAMP CIRCUIT

Description

INFOID:0000000009484908

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:0000000009484909

1.

CHECK FRONT FOG LAMP OPERATION

WITHOUT CONSULT

1. Activate IPDM E/R auto active test. Refer to 

PCS-9, "Diagnosis Description"

.

2. Check that the front fog lamp is turned ON.

WITH CONSULT

1. Select "EXTERNAL LAMPS" 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-56, "Diagnosis Procedure"

. 

Diagnosis Procedure

INFOID:0000000009484910

Regarding Wiring Diagram information, refer to 

EXL-102, "Wiring Diagram"

.

1.

CHECK FRONT FOG LAMP FUSE

1. Turn the ignition switch OFF.

2. Check that the following fuse is not open.

Is the fuse open?

YES

>> Replace the fuse after repairing the affected circuit.

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.

Is battery voltage present?

YES

>> GO TO 4

NO

>> GO TO 3

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-57

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

3.

CHECK FRONT FOG LAMP OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R connector E123.

3. Check continuity between the IPDM E/R harness connector and

the front fog lamp harness connector.

Does continuity exist?

YES

>> Replace IPDM E/R. Refer to 

PCS-27, "Removal and Installation"

.

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-58

< DTC/CIRCUIT DIAGNOSIS >

PARKING LAMP CIRCUIT

PARKING LAMP CIRCUIT

Description

INFOID:0000000009484911

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 36 and 37, located in the IPDM E/R. Power then flows to the front and rear combination lamps, license

plate lamp.

Component Function Check

INFOID:0000000009484912

1.

CHECK PARKING LAMP OPERATION

WITHOUT CONSULT

1. Activate IPDM E/R auto active test. Refer to 

PCS-9, "Diagnosis Description"

.

2. Check that the parking lamp is turned ON.

WITH CONSULT 

1. Select "EXTERNAL LAMPS" 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-58, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009484913

Regarding Wiring Diagram information, refer to 

EXL-117, "Wiring Diagram"

.

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

>> Replace the fuse after repairing the affected circuit.

NO

>> GO TO 2

2.

CHECK TAIL LAMP RELAY OUTPUT (VOLTAGE)

1. Turn the ignition switch OFF.

2. Disconnect the front parking lamp connector, front side marker lamp connector, rear combination lamp

connector and license plate lamp connector.

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 connector 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

5

Ground

Battery voltage

RH

E111

PARKING LAMP CIRCUIT

EXL-59

< DTC/CIRCUIT 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 connector and ground.

7. With the parking lamps ON, check voltage between the rear combination lamp connector 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.

3. Check continuity between the IPDM E/R harness connector and the front parking lamp harness connec-

tor.

4. Check continuity between the IPDM E/R harness connector and the front side marker lamp harness con-

nector.

5. Check continuity between the IPDM E/R harness connector and the rear combination lamp harness con-

nector.

6. Check continuity between the IPDM E/R harness connector and license plate lamp connector. 

(+)

(

−)

Voltage

Connector

Terminal

LH

E17

7

Ground

Battery voltage

RH

E108

(+)

(

−)

Voltage

Connector

Terminal

LH

B35

1

Ground

Battery voltage

RH

B105

(+)

(

−)

Voltage

Connector

Terminal

C12

1

Ground

Battery voltage

Connector

Terminal

Connector

Terminal

Continuity

LH

E121

28

E27

5

Yes

RH

E123

49

E111

Connector

Terminal

Connector

Terminal

Continuity

LH

E121

28

E17

7

Yes

RH

E123

49

E108

IPDM E/R

Rear combination lamp

Continuity

Connector

Terminal

Connector

Terminal

LH

E124

57

B35

1

Yes

RH

B105