Nissan Pathfinder. Manual — part 741

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-51

< DTC/CIRCUIT DIAGNOSIS >

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INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000009175443

Controls the room lamp control circuit (ground side) to turn the room lamps ON and OFF.

Component Function Check

INFOID:0000000009175444

CAUTION:

Before performing the diagnosis, check that the following are normal.

• Battery saver output/power supply

• Front room/map lamp bulb

• Personal lamp 2nd row bulb

• Cargo lamp bulb

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT

1. Set the front room/map lamp switch, personal lamp switch and cargo lamp switch to DOOR.

2. Turn ignition switch ON.

3. Select INT LAMP of BCM(INT LAMP) active test item.

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

Does the interior room lamp turn ON/OFF?

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to

INL-51, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009175445

Regarding Wiring Diagram information, refer to

INL-12, "Wiring Diagram"

.

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT

1. Turn ignition switch ON.

2. Select INT LAMP of BCM(INT LAMP) active test item.

3. While operating the test item, check voltage between BCM harness connector M81 terminal 136 and

ground.

Is the inspection result normal?

YES

>> Interior room lamp control circuit is operating normally.

Fixed ON>>GO TO 3.

Fixed OFF>>GO TO 2.

2.

CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector M81, front room/map lamp harness connector R107 and cargo lamp

harness connector R104.

3. Check continuity between BCM harness connector M81 terminal 136 and front room/map lamp assembly

harness connector R107 terminal 3 and cargo lamp harness connector R104 terminal 3.

On

: Interior room lamp On

Off

: Interior room lamp Off

BCM

Ground

Test item

Voltage

(Approx.)

Connector

Terminal

M81

136

INT LAMP

On

0V

Off

Battery voltage

INL-52

< DTC/CIRCUIT DIAGNOSIS >

INTERIOR ROOM LAMP CONTROL CIRCUIT

4. Reconnect the front room/map lamp assembly harness connector.

5. Check continuity between BCM harness connector M81 terminal 136 and personal lamps 2nd row har-

ness connector R106 terminal 3.

Is the inspection result normal?

YES

>> Check interior room lamps for an open. If NG, replace lamp in question. Refer to

INL-58,

"Removal and Installation"

(front room/map lamp assembly) or

INL-65, "Removal and Installation"

(personal lamps 2nd row) or

INL-66, "Removal and Installation"

(cargo lamp). If OK, replace BCM.

Refer to

BCS-80, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

3.

CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM harness connector M81, front room/map lamp harness connector R107 and cargo lamp

harness connector R104.

3. Check continuity between BCM harness connector M81 terminal 136 and ground.

Is the inspection result normal?

YES

>> Check interior room lamps for an open. If NG, replace lamp in question. Refer to

INL-58,

"Removal and Installation"

(front room/map lamp assembly) or

INL-65, "Removal and Installation"

(personal lamps 2nd row) or

INL-66, "Removal and Installation"

(cargo lamp). If OK, replace BCM.

Refer to

BCS-80, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

BCM

Interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M81

136

Front room/map lamp

R107

3

Yes

Cargo lamp

R104

3

BCM

Personal lamp

Continuity

Connector

Terminal

Connector

Terminal

M81

136

R106

3

Yes

BCM

Ground

Continuity

Connector

Terminal

M81

136

No

STEP LAMP CIRCUIT

INL-53

< DTC/CIRCUIT DIAGNOSIS >

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STEP LAMP CIRCUIT

Description

INFOID:0000000009175446

Controls the step lamp control circuit (ground side) to turn the step lamps (if equipped) and foot lamps (if

equipped) ON and OFF.

Component Function Check

INFOID:0000000009175447

CAUTION:

Before performing the diagnosis, check that the following is normal.

• Battery saver output/power supply

• Front step lamp bulb (if equipped)

• Foot lamp bulb (if equipped)

1.

CHECK STEP LAMP OPERATION

CONSULT

1. Turn ignition switch ON.

2. Select STEP LAMP TEST of BCM(INT LAMP) active test item.

3. While operating the test items, check that front step lamp (if equipped) and foot lamp (if equipped) turns

ON/OFF.

Is the inspection result normal?

YES

>> Step lamp circuit is normal.

NO

>> Refer to

INL-53, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009175448

Regarding Wiring Diagram information, refer to

INL-12, "Wiring Diagram"

.

1.

CHECK STEP LAMP OUTPUT

CONSULT

1. Turn ignition switch ON.

2. Select STEP LAMP TEST of BCM (INT LAMP) active test item.

3. While operating the test item, check voltage between BCM harness connector M18 terminal 21 and

ground.

Is the inspection result normal?

YES

>> Step lamp control circuit is operating normally.

Fixed ON>>GO TO 3.

Fixed OFF>>GO TO 2.

2.

CHECK STEP LAMP OPEN CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the following harness connectors:

-

BCM M18

-

Front step lamp LH D11(if equipped)

-

Front step lamp RH D109 (if equipped)

-

Foot lamp LH M99 (if equipped)

-

Foot lamp RH M100 (if equipped)

On

: Step lamp and foot lamp ON

Off

: Step lamp and foot lamp OFF

BCM

Ground

STEP LAMP TEST

Voltage

(Approx.)

Connector

Terminal

M18

21

On

0V

Off

Battery voltage

INL-54

< DTC/CIRCUIT DIAGNOSIS >

STEP LAMP CIRCUIT

3. Check continuity between BCM harness connector M18 terminal 21 and the following lamp harness con-

nector terminal.

Is the inspection result normal?

YES

>> Check front step lamp (if equipped) or foot lamp (if equipped) for an open. If NG, replace lamp in

question. Refer to

INL-64, "Removal and Installation"

(step lamp) (if equipped) or

INL-62,

"DRIVER SIDE : Removal and Installation"

(foot lamp) (if equipped). If OK, replace BCM. Refer to

BCS-80, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

3.

CHECK STEP LAMP SHORT CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the following harness connectors:

-

BCM M18

-

Front step lamp LH D11(if equipped)

-

Front step lamp RH D109 (if equipped)

-

Foot lamp LH M99 (if equipped)

-

Foot lamp RH M100 (if equipped)

3. Check continuity between BCM harness connector M18 terminal 21 and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to

BCS-80, "Removal and Installation"

.

NO

>> Repair or replace harness or connector.

BCM

Step lamp

Continuity

Connector

Terminal

Connector

Terminal

M18

21

Front step lamp LH (if equipped)

D11

2

Yes

Front step lamp RH (if equipped)

D109

Foot lamp LH (if equipped)

M99

Foot lamp RH (if equipped)

M100

BCM

Ground

Continuity

Connector

Terminal

M18

21

No