INTERIOR ROOM LAMP CONTROL SYSTEM : System Description

WARNING: This page is about a different car, the 2011 Nissan 370Z. However, it is still accessible from the selected car via links, so may be relevant.

OUTLINE

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

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

Luggage room lamp is controlled by luggage room 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

Interior Room Lamp Timer Basic Operation

Fig 1: Interior Room Lamp Timer Basic Operation - Line Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.

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, central door lock/unlock switch)

NOTE: Each function of interior room lamp timer can be set by CONSULT-III. Refer to "INT LAMP : CONSULT-III FUNCTION (BCM - INT LAMP) (COUPE MODELS) ".

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.

LUGGAGE ROOM LAMP CONTROL

BCM controls the luggage room lamp (ground-side) to turn ON with the luggage room lamp 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

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.