Nissan Pathfinder (2010 year). Manual - part 396

EXL-34

< FUNCTION DIAGNOSIS >

DIAGNOSIS SYSTEM (IPDM E/R)

ACTIVE TEST

Test item

TAIL&CLR REQ
[OFF/ON]

×

Displays the status of the position light request signal received from BCM via CAN 
communication.

HL LO REQ
[OFF/ON]

×

Displays the status of the low beam request signal received from BCM via CAN 
communication.

HL HI REQ
[OFF/ON]

×

Displays the status of the high beam request signal received from BCM via CAN 
communication.

FR FOG REQ
[OFF/ON]

×

Displays the status of the front fog lamp request signal received from BCM via 
CAN communication.

FR WIP REQ
[STOP/1LOW/LOW/HI]

×

Displays the status of the front wiper request signal received from BCM via CAN 
communication.

WIP AUTO STOP
[STOP P/ACT P]

×

Displays the status of the front wiper auto stop signal judged by IPDM E/R.

WIP PROT
[OFF/Block]

×

Displays the status of the front wiper fail-safe operation judged by IPDM E/R.

ST RLY REQ
[OFF/ON]

Displays the status of the starter request signal received from ECM via CAN com-
munication.

IGN RLY
[OFF/ON]

×

Displays the status of the ignition relay judged by IPDM E/R.

RR DEF REQ
[OFF/ON]

×

Displays the status of the rear defogger request signal received from AV control 
unit via CAN communication.

OIL P SW
[Open/Close]

Displays the status of the oil pressure switch judged by IPDM E/R.

DTRL REQ
[OFF]

Displays the status of the daytime light request signal received from BCM via CAN 
communication.

THFT HRN REQ
[OFF/ON]

Displays the status of the theft warning horn request signal received from BCM 
via CAN communication.

HORN CHIRP
[OFF/ON]

Displays the status of the horn reminder signal received from BCM via CAN com-
munication.

Monitor Item

[Unit]

MAIN SIG-

NALS

Description

Test item

Operation

Description

REAR DEFOGGER

OFF

OFF

ON

Operates rear window defogger relay.

FRONT WIPER

OFF

OFF

LO

Operates the front wiper relay.

HI

Operates the front wiper relay and front wiper high relay.

MOTOR FAN

1

OFF

2

OFF

3

Operates the cooling fan relay.

4

Operates the cooling fan relay.

EXTERNAL LAMPS

Off

OFF

TAIL

Operates the tail lamp relay.

Lo

Operates the headlamp low relay.

Hi

Operates the headlamp low relay and the headlamp (LH/RH) high relays alter-
nately at 1 second intervals.

Fog

Operates the front fog lamp relay

HORN

ON

Operates horn relay for 20 ms.

2010 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

EXL-35

< COMPONENT DIAGNOSIS >

C

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F

G

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A

B

EXL

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COMPONENT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis Procedure

INFOID:0000000005501517

Regarding Wiring Diagram information, refer to 

EXL-117, "Wiring Diagram"

.

1.

 CHECK FUSES AND FUSIBLE LINK

Check that the following fuses and fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Terminal No.

Signal name

Fuses and fusible link No.

57

Battery power supply

18 (10A)

70

G (50A)

11

Ignition ACC or ON

4 (10A)

38

Ignition ON or START

1 (10A)

Connector

Terminals 

Power

source

Condition

Voltage (V) (Ap-

prox.)

(+)

(-)

M18

11

Ground

ACC 

power 

supply

Ignition 

switch 

ACC or 

ON

Battery voltage

38

Ground

Ignition 

power 

supply

Ignition 

switch ON 

or START

Battery voltage

M20

57

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

70

Ground

Battery 

power 

supply

Ignition 

switch 

OFF

Battery voltage

LIIA2415E

2010 Pathfinder

EXL-36

< COMPONENT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure

INFOID:0000000005501516

Regarding Wiring Diagram information, refer to 

EXL-129, "Wiring Diagram"

.

1.

 CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible link are not blown.

Is the fuse blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK BATTERY POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R.

3. Check voltage between IPDM E/R harness connectors and

ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

BCM

Ground

Continuity

Connector

Terminal

M20

67

Yes

LIIA0915E

Terminal No.

Signal name

Fuses and fusible link No.

1

Battery

A, D

2

Battery

C

Terminals

Ignition switch position

(+)

(

−

)

OFF

ON

START

Connector

Terminal

E118

1

Ground

Battery
voltage

Battery
voltage

Battery
voltage

2

Battery
voltage

Battery
voltage

Battery
voltage

SKIA1987E

2010 Pathfinder

POWER SUPPLY AND GROUND CIRCUIT

EXL-37

< COMPONENT DIAGNOSIS >

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B

EXL

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2. Check continuity between IPDM E/R harness connectors and

ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

IPDM E/R

Ground

Continuity

Connector

Terminal

E122 (A)

38

Yes

E124 (B)

59

AWMIA0024ZZ

2010 Pathfinder

EXL-38

< COMPONENT DIAGNOSIS >

HEADLAMP (HI) CIRCUIT

HEADLAMP (HI) CIRCUIT

Description

INFOID:0000000005259740

The IPDM E/R (intelligent power distribution module engine room) controls the headlamp LH high and head-

lamp RH relays based on inputs from the BCM via the CAN communication lines. When the headlamp LH high

and headlamp RH high relays are energized, power flows through fuses 34 and 35, located in the IPDM E/R.

Power then flows to the front headlamp high beam.

Component Function Check

INFOID:0000000005259741

1.

CHECK HEADLAMP (HI) OPERATION

WITHOUT CONSULT-III

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

PCS-12, "Diagnosis Description"

.

2. Check that the headlamp switches to the high beam.

NOTE:

HI/LO is repeated 1 second each when using the IPDM E/R auto active test.

CONSULT-III

1. Select "EXTERNAL LAMPS" of IPDM E/R active test item.

2. With the test item operating, check that the headlamp switches to high beam.

Does the headlamp switch to high beam?

YES

>> Headlamp (HI) circuit is normal.

NO

>> Refer to 

EXL-38, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005259742

Regarding Wiring Diagram information, refer to 

EXL-54, "Wiring Diagram"

 or 

EXL-58, "Wiring Diagram"

.

1.

CHECK HEADLAMP (HI) 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 (HI) OUTPUT VOLTAGE

1. Turn the ignition switch OFF.

2. Disconnect the front headlamp connector E11 or E107.

3. Turn the ignition switch ON.

4. Turn the high beam headlamps ON.

5. With the high beam headlamps ON, check the voltage between

the headlamp connector and ground.

Hi

: Headlamp switches to the high beam.

Off

: Headlamp OFF

Unit

Location

Fuse No.

Capacity

Headlamp HI (LH) 

IPDM E/R

35

10A

Headlamp HI (RH) 

IPDM E/R

34

10A

(+)

(

−

)

Voltage

Connector

Terminal

WKIA4989E

2010 Pathfinder

HEADLAMP (HI) CIRCUIT

EXL-39

< COMPONENT DIAGNOSIS >

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B

EXL

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Is battery voltage present?

YES

>> GO TO 4

NO

>> GO TO 3

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 headlamp harness connector (B).

Does continuity exist?

YES

>> GO TO 4

NO

>> Repair the harnesses or connectors.

4.

CHECK FRONT HEADLAMP (HI) GROUND CIRCUIT

Check continuity between the front headlamp harness connector ter-

minal 2 and ground.

Does continuity exist?

YES

>> Inspect the headlamp bulb.

NO

>> Repair the harness.

LH

E11 (without DTRL)

1

Ground

Battery voltage

E6 (with DTRL)

RH

E107

A

B

Continuity

Connector

Terminal

Connector

Terminal

LH

E123

55

E11 (without DTRL)

1

Yes

E6 (with DTRL)

RH

56

E107

ALLIA0623GB

Connector

Terminal

—

Continuity

LH

E11 (without DTRL)

2

Ground

Yes

E6 (with DTRL)

RH

E107

ALLIA0624GB

2010 Pathfinder

EXL-40

< COMPONENT DIAGNOSIS >

HEADLAMP (LO) CIRCUIT

HEADLAMP (LO) CIRCUIT

Description

INFOID:0000000005259743

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 headlamp low beams.

Component Function Check

INFOID:0000000005259744

1.

CHECK HEADLAMP (LO) OPERATION

WITHOUT CONSULT-III

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

PCS-12, "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 LAMPS" 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-40, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005259745

Regarding Wiring Diagram information, refer to 

EXL-54, "Wiring Diagram"

 or 

EXL-58, "Wiring Diagram"

.

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 headlamp 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 headlamp connector terminal 3 and ground.

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

ALLIA0625GB

2010 Pathfinder

HEADLAMP (LO) CIRCUIT

EXL-41

< COMPONENT DIAGNOSIS >

C

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A

B

EXL

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Is battery voltage present?

YES

>> GO TO 4

NO

>> GO TO 3

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 (A)

and the front headlamp harness connector (B).

Does continuity exist?

YES

>> GO TO 4

NO

>> Repair the harnesses or connectors.

4.

CHECK FRONT HEADLAMP (LO) GROUND CIRCUIT

Check continuity between the front headlamp harness connector ter-

minal 2 and ground.

Does continuity exist?

YES

>> Inspect the headlamp bulb.

NO

>> Repair the harness.

LH

E11 (without DTRL)

3

Ground

Battery voltage

E6 (with DTRL)

RH

E107

A

B

Continuity

Connector

Terminal

Connector

Terminal

LH

E123

52

E11 (without DTRL)

3

Yes

E6 (with DTRL)

RH

54

E107

ALLIA0626GB

Connector

Terminal

—

Continuity

LH

E11 (without DTRL)

2

Ground

Yes

E6 (with DTRL)

RH

E107

ALLIA0624GB

2010 Pathfinder