Infiniti EX35. Manual - part 946

INTERIOR ROOM LAMP POWER SUPPLY CIRCUIT

INL-21

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

-

Luggage room lamp (back door side)

-

Step lamp (driver side)

-

Step lamp (passenger side)

3.

Check continuity between BCM harness connector and each interior room lamp harness connector.

Does continuity exist?

YES

>> GO TO 3.

NO

>> Repair the harnesses or connectors.

3.

CHECK INTERIOR ROOM LAMP POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

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

BCM

Each interior room lamp

Continu-

ity

Connec-

tor

Terminal

Connector

Terminal

M119

4

Roof module

R11

12

Existed

Foot lamp
(driver side)

M27

1

Foot lamp
(passenger side)

M113

1

Vanity mirror lamp 
(LH)

R12

2

Vanity mirror lamp 
(RH)

R13

2

Luggage room lamp
(luggage side)

B229

2

Luggage room lamp
(back door side)

D110

2

Step lamp (driver 
side)

D12

1

Step lamp (passen-
ger side)

D42

1

BCM

Ground

Continuity

Connector

Terminal

M119

4

Not existed

INL-22

< COMPONENT DIAGNOSIS >

INTERIOR ROOM LAMP CONTROL CIRCUIT

INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000003135150

Controls each interior room lamp (ground side) by PWM signal.
NOTE:
PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).

Component Function Check

INFOID:0000000003135151

CAUTION:

 Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Map lamp bulb
• Personal lamp bulb
• Foot lamp bulb

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT-III ACTIVE TEST

1.

Switch the map lamp switch to DOOR.

2.

Turn ignition switch ON.

3.

Select “INT LAMP” of BCM (INT LAMP) active test item.

4.

With operating the test items, check that each interior room lamp turns ON/OFF (gradual brightening/dim-
ming).

Does the interior room lamp turns ON/OFF (gradual brightening/dimming)?

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to 

INL-22, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003135152

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT-III ACTIVE TEST

1.

Turn ignition switch OFF.

2.

Remove all the bulbs of map lamp, foot lamp and personal lamp.

3.

Select “INT LAMP” of BCM (INT LAMP) active test item.

4.

 With operating the test item, check continuity between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 2.

Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.

2.

CHECK INTERIOR ROOM LAMP CONTROL OPEN CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector, roof module connector and foot lamp connector.

3.

Check continuity between BCM harness connector, roof module harness connector, and foot lamp har-
ness connector.

On

: Interior room lamp gradual 
brightening

Off

: Interior room lamp gradual dim-
ming

BCM

Ground

Test item

Continuity

Connector

Terminal

INT LAMP

M119

19

On

Existed

Off

Not existed

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-23

< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

M

A

B

INL

N

O

P

Does continuity exist?

YES

>> Replace the roof module or the foot lamp.

NO

>> Repair the harnesses or connectors.

3.

CHECK INTERIOR ROOM LAMP CONTROL SHORT CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector, roof module connector and foot lamp connector.

3.

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair the harnesses or connectors.

NO

>> Replace BCM.

BCM

Roof module/foot lamp

Continuity

Connec-

tor

Terminal

Connector

Terminal

M119

19

Roof module

R11

9

Existed

Foot lamp
(driver side)

M27

2

Foot lamp
(passenger side)

M113

2

BCM

Ground

Continuity

Connector

Terminal

M119

19

Not existed

INL-24

< COMPONENT DIAGNOSIS >

STEP LAMP CIRCUIT

STEP LAMP CIRCUIT

Description

INFOID:0000000003135153

Controls the step lamp (ground side) to turn the step lamp ON and OFF.

Component Function Check

INFOID:0000000003135154

CAUTION:

 Before performing the diagnosis, check that the following is normal.
• Interior room lamp power supply
• Step lamp bulb

1.

CHECK STEP LAMP OPERATION

CONSULT-III ACTIVE TEST

1.

Turn ignition switch ON.

2.

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

3.

With operating the test items, check that step lamp turns ON/OFF.

Does the step lamp turn ON/OFF?

YES

>> Step lamp circuit is normal.

NO

>> Refer to 

INL-24, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003135155

1.

CHECK STEP LAMP OUTPUT

CONSULT-III ACTIVE TEST

1.

Turn ignition switch OFF.

2.

Remove the step lamp bulbs (driver side and passenger side).

3.

Turn ignition switch ON.

4.

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

5.

With operating the test item, check continuity between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 2.

Fixed ON>>GO TO 3.
Fixed OFF>>Replace BCM.

2.

CHECK STEP LAMP OPEN CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector, and step lamp connector.

3.

Check continuity between BCM harness connector and step lamp harness connector.

On

: Step lamp ON

Off

: Step lamp OFF

BCM

Ground

Test item

Continuity

Connector

Terminal

STEP LAMP 

TEST

M119

7

On

Existed

Off

Not existed

BCM

Step lamp

Continuity

Connec-

tor

Terminal

Connector

Terminal

M119

7

Driver side

D12

2

Existed

Passenger 
side

D42

2