Nissan Murano Z51. Manual - part 901

INTERIOR ROOM LAMP CONTROL SYSTEM

INL-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

INTERIOR ROOM LAMP CONTROL SYSTEM

System Diagram

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System Description

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OUTLINE

• Interior room lamps* are controlled by interior room lamp timer control function of BCM. 

*: Map lamp and personal lamp (when map lamp switch is in DOOR position).

• Step lamp is controlled by step lamp control function of BCM.
• Push-button ignition switch illumination is controlled by the push-button ignition switch illumination control

function of BCM.

INTERIOR ROOM LAMP TIMER CONTROL

JPLIA0985GB

INL-6

< SYSTEM DESCRIPTION >

INTERIOR ROOM LAMP CONTROL SYSTEM

Interior Room Lamp Timer Basic Operation

• The interior room lamp turns ON and OFF (gradual brightening and dimming) by the interior room timer.
• BCM judges the vehicle condition with the following items. It activates the interior room timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each request switch, key cylinder lock/unlock

switch, door lock/unlock switch)

NOTE:
Each function of interior room lamp timer can be set by CONSULT-III. Refer to 

INL-15, "INT LAMP : CON-

SULT-III Function (BCM - INT LAMP)"

.

Interior Room Lamp ON Operation

• BCM always turns the interior room lamp ON when any door opens.
• BCM activates the interior room timer in any of the following conditions to turn the interior room lamp ON for

a period of time.

- Any door opens before all doors close.
- Ignition switch is turned ON 

→

 OFF.

- Any door unlock signal is detected when all doors close with ignition switch OFF. 
NOTE:
Restart the timer if new condition is input during the timer operating time.

Interior Room Lamp OFF Operation

BCM stops the timer in any of the following conditions to turns the interior room lamp OFF.
• The timer operating time is expired.
• Ignition switch position is other than OFF with all doors close.
• Any door lock operation is detected with all doors close.

STEP LAMP CONTROL

BCM controls the step lamp (ground-side) to turn ON with any door switch ON.

PUSH-BUTTON IGNITION SWITCH ILLUMINATION CONTROL

Push-button Ignition Switch Illumination Basic Operation

• BCM provides the power supply and the ground to turn the push-button ignition switch illumination ON.
• BCM cuts the ground supply while the each illumination (tail lamp) ON. BCM switches to the ground control

with the meter illumination control function.

Push-button Ignition Switch Illumination ON Operation

BCM turns the push-button ignition switch illumination ON in the following conditions.
• Ignition switch ON
• Each illumination (tail lamp) ON
• Any of the following conditions with ignition switch OFF
- Engine start permission is entered.
- Intelligent Key inserted into the key slot. 
- Driver door is LOCK 

→

 UNLOCK.

- Driver door is open.

Push-button Ignition Switch Illumination OFF Operation

JPLIA0093GB

INTERIOR ROOM LAMP CONTROL SYSTEM

INL-7

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BCM turns the push-button ignition switch illumination OFF in any of the following conditions.
• The push-button ignition switch illumination ON conditions do not satisfy.
• All of the following conditions with ignition switch OFF
- Each illumination (tail lamp) OFF
- The push-button ignition switch illumination ON conditions do not change (15 seconds after the ignition

switch OFF) or the driver door is UNLOCK 

→

 LOCK.

Component Parts Location

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Component Description

INFOID:0000000005516758

1.

Personal lamp

2.

Request switch

3.

Step lamp

4.

Door switch

5.

Key cylinder switch

6.

Push-button ignition switch illumination

7.

Map lamp

8.

Door lock switch

9.

Remote keyless entry receiver

10. BCM

A.

Over the glove box

B.

Behind the combination meter

JPLIA0889ZZ

Part

Description

BCM

• Activates the interior room lamp timer depending on the vehicle condition to turn the 

interior room lamp ON/OFF.

• Turns the step lamp ON /OFF according to any door switch status.

Remote keyless entry receiver

• Receives the lock/unlock signal from keyfob.
• Transmits the lock/unlock signal to BCM.

• Request switch
• Key cylinder lock/unlock switch
• Door lock/unlock switch

Inputs the lock/unlock signal to BCM.

Door switch

Inputs the door switch signal to BCM.

INL-8

< SYSTEM DESCRIPTION >

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

System Diagram

INFOID:0000000005516759

System Description

INFOID:0000000005516760

OUTLINE

• Interior room lamp battery saver is controlled by BCM.
• BCM turns applicable lamps OFF depending on the vehicle condition. This function prevents the battery

from over-discharging if the driver neglect turning OFF the any lamps.

Applicable lamps

• Map lamp
• Personal lamp
• Step lamp
• Luggage room lamp
• Vanity mirror lamp

INTERIOR ROOM LAMP BATTERY SAVER FUNCTION

• When the ignition switch is turned OFF, BCM operates the timer for a period of time to cut the interior room

lamp power supply.

• BCM restart the timer when any of the following signals changes while operating the timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each request switch, key cylinder lock/unlock

switch, door lock/unlock switch)

- Back door switch signal
- Key switch signal (Key slot)
• BCM provides the interior room lamp power supply continuously when the ignition switch position is other

than OFF.

NOTE:

JPLIA0986GB