Infiniti QX56 (JA60). Manual - part 622

 

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Infiniti QX56 (JA60). Manual - part 622

 

 

INL-16

< 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.

BCM

Ground

Continuity

Connector

Terminal

M20

67

Yes

LIIA0915E

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

INL-17

< COMPONENT DIAGNOSIS >

C

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INL

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BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

Description

INFOID:0000000005146727

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:0000000005146728

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY FUNCTION

CONSULT-III

1. Turn ignition switch ON.

2. Turn each interior room lamp ON.

-

Front room/map lamp assembly

-

Vanity lamps

-

Personal lamp 2nd row

-

Personal lamp 3rd row

-

Cargo lamp

3. Open the driver door to turn ON the step lamps, foot lamps and puddle lamps.

-

Front step lamps

-

Rear step lamps

-

Foot lamps

-

Puddle lamps

-

Ignition keyhole Illumination

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-17, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146729

Regarding Wiring Diagram information, refer to 

BCS-49, "Wiring Diagram"

.

1.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OUTPUT

CONSULT-III

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 con-

nector M20 terminal 56 and ground.

Is the inspection result normal?

YES

>> GO TO 2

NO

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

2.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY OPEN CIRCUIT

OFF

: Interior room lamps OFF

ON

: Interior room lamps ON

(+)

(-)

Test item

Voltage

Connector

Terminal

BATTERY SAVER

M20

56

Ground

OFF

0V

ON

Battery voltage

ALLIA0408GB

INL-18

< COMPONENT DIAGNOSIS >

BATTERY SAVER OUTPUT/POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect the following connectors.

-

BCM  M20

-

Ignition keyhole illumination

-

Front step lamp LH

-

Front step lamp RH

-

Door mirror LH

-

Door mirror RH

-

Rear step lamp LH

-

Rear step lamp RH

-

Foot lamp LH 

-

Foot lamp RH

-

Front room/map lamp assembly

-

Vanity lamp LH

-

Vanity lamp RH

-

Cargo lamp

-

Personal lamp 2nd row

-

Personal lamp 3rd row

3. Check continuity between BCM connector M20 terminal 56 and each interior room lamp connector.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair the harness or connectors.

3.

CHECK BATTERY SAVER OUTPUT/POWER SUPPLY SHORT CIRCUIT

Check continuity between BCM connector M20 terminal 56 and

ground.

Is the inspection result normal?

YES

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

circuit.

NO

>> Repair the harness or connectors.

BCM

Interior room lamp

Continuity

Connector

Terminal

Connector

Terminal

M20

56

Ignition keyhole illumination

M150

1

Yes

Front step lamp LH 

D11

1

Front step lamp RH

D109

1

Door mirror LH

D4

12

Door mirror RH

D107

12

Rear step lamp LH

D206

1

Rear step lamp RH

D306

1

Foot lamp LH 

M99

1

Foot lamp RH

M100

1

Front room/map lamp assembly

R102

6

Vanity lamp LH

R3

1

Vanity lamp RH

R8

1

Cargo lamp

B153

2

Personal lamp 2nd row

R203

3

Personal lamp 3rd row

R205

3

Connector

Terminal

—

Continuity

M20

56

Ground

No

ALLIA0409GB

INTERIOR ROOM LAMP CONTROL CIRCUIT

INL-19

< COMPONENT DIAGNOSIS >

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INTERIOR ROOM LAMP CONTROL CIRCUIT

Description

INFOID:0000000005146730

Controls the following interior room lamps (ground side) by PWM signal

• Puddle lamps

• Front room/map lamp assembly

• Personal lamp 2nd row

• Personal lamp 3rd row

NOTE:

PWM signal control period is approximately 250 Hz (in the gradual brightening/dimming).

Component Function Check

INFOID:0000000005146731

CAUTION:

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

• Battery saver output/power supply

• Front room/map lamp bulbs

• Personal lamp bulbs

• Puddle lamp bulbs

1.

CHECK INTERIOR ROOM LAMP CONTROL FUNCTION

CONSULT-III

1. Switch the front room/map lamp assembly 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 turns ON/OFF (gradual brightening/dim-

ming).

Is the inspection result normal?

YES

>> Interior room lamp control circuit is normal.

NO

>> Refer to 

INL-19, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146732

Regarding Wiring Diagram information, refer to 

INL-28, "Wiring Diagram"

.

1.

CHECK INTERIOR ROOM LAMP CONTROL OUTPUT

CONSULT-III

1. Switch the front room/map lamp assembly 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 voltage between BCM con-

nector M20 terminal 63 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

ON

: Interior room lamp gradual brightening

OFF

: Interior room lamp gradual dimming

(+)

(-)

INT LAMP

Voltage

Connector

Terminal

M20

63

Ground

ON

0V

OFF

Battery voltage

ALLIA0410GB

 

 

 

 

 

 

 

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