Nissan Pathfinder. Manual - part 740

POWER SUPPLY AND GROUND CIRCUIT

INL-47

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM
BCM : Diagnosis Procedure

INFOID:0000000009764027

Regarding Wiring Diagram information, refer to 

BCS-55, "Wiring Diagram"

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1.

 CHECK FUSE AND FUSIBLE LINK

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

Is the fuse or fusible link blown?

YES

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

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Disconnect BCM connector M81.

2. Check voltage between BCM connector M81 terminals 131, 139 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

 CHECK GROUND CIRCUIT

Check continuity between BCM connector M81 terminals 134, 143 and ground.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

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

INFOID:0000000009764028

Regarding Wiring Diagram information, refer to 

PCS-21, "Wiring Diagram"

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Terminal No.

Signal name

Fuse and fusible link No.

139

Fusible link battery power

O (40A)

131

BCM battery fuse

1 (10A)

BCM

Ground

Voltage

(Approx.)

Connector

Terminal

M81

131

—

Battery voltage

139

BCM

Ground

Continuity

Connector

Terminal

M81

134

—

Yes

143

INL-48

< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

1.

 CHECK FUSIBLE LINKS

Check that the following fusible links are not blown.

Is the fusible link blown?

YES

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

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Disconnect IPDM E/R connectors E118 and E120.

2. Check voltage between IPDM E/R connectors and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness or connectors.

3.

 CHECK GROUND CIRCUIT

1. Disconnect IPDM E/R connectors E119 and E121.

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

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Repair or replace harness or connectors.

Terminal No.

Signal name

Fusible link No.

1

Fusible link main

E (80A)

2

Fusible link IPDM E/R

A (250A), C (80A)

3

Fusible link ignition switch

A (250A), B (100A), K (40A)

IPDM E/R

Ground

Voltage

(Approx.)

Connector

Terminal

E118

1

—

Battery voltage

2

E120

3

IPDM E/R

Ground

Continuity

Connector

Terminal

E121

7

—

Yes

E119

41

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

INL-49

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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Description

INFOID:0000000009175440

Provides the battery saver output/power supply. Also cuts the power supply when the interior room lamp bat-

tery saver is activating.

Component Function Check

INFOID:0000000009175441

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION

CONSULT

1. Turn ignition switch ON.

2. Turn each interior room lamp ON:

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Front room/map lamp assembly

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Vanity lamps (if equipped)

-

Personal lamps 2nd row

-

Cargo lamp

3. Open the driver door to turn ON the following lamps:

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Front step lamps (if equipped)

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Foot lamps (if equipped) 

4. Select BATTERY SAVER of BCM(BATTERY SAVER) active test item.

5.  While operating the test item, check that each interior room lamp turns ON/OFF.

Is the inspection result normal?

YES

>> Battery saver output/power supply circuit is normal.

NO

>> Refer to 

INL-49, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009175442

Regarding Wiring Diagram information, refer to 

INL-12, "Wiring Diagram"

.

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

CONSULT

1. Turn ignition switch ON.

2. Select BATTERY SAVER of BCM(BATTERY SAVER) active test item.

3. While operating the test item, check voltage between BCM connector M81 terminal 129 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace BCM after making sure battery saver output/power supply circuit is not shorted to volt-

age. Refer to 

BCS-80, "Removal and Installation"

.

2.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the following connectors:

-

BCM  M81

-

Front step lamp LH D11(if equipped)

-

Front step lamp RH D109 (if equipped)

OFF

: Interior room lamp OFF

ON

: Interior room lamp ON

(+)

(-)

Test item

Voltage

(Approx.)

Connector

Terminal

BATTERY SAVER

M81

129

Ground

OFF

0V

ON

Battery voltage

INL-50

< DTC/CIRCUIT DIAGNOSIS >

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

-

Foot lamp LH M99 (if equipped)

-

Foot lamp RH M100 (if equipped)

-

Front room/map lamp assembly R107

-

Vanity lamp LH R103 (if equipped)

-

Vanity lamp RH R102 (if equipped)

-

Cargo lamp R104

-

Personal lamps 2nd row R106

3. Check continuity between BCM connector M81 terminal 129 and interior room lamp connector terminal in

question.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector M81 terminal 129 and ground.

Is the inspection result normal?

YES

>> Check that each interior room lamp has no internal short circuit.

NO

>> Repair or replace harness or connector.

BCM

Each interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M81

129

Front step lamp LH (if equipped)

D11

1

Yes

Front step lamp RH (if equipped)

D109

1

Foot lamp LH (if equipped)

M99

1

Foot lamp RH (if equipped)

M100

1

Front room/map lamp assembly

R107

1

Vanity lamp LH (if equipped)

R103

1

Vanity lamp RH (if equipped)

R102

1

Cargo lamp

R104

2

Personal lamps 2nd row

R106

2

Connector

Terminal

—

Continuity

M81

129

Ground

No