Nissan Pathfinder: Interior Lighting System - System

• Interior Room Lamp Control System
• Interior Room Lamp Battery Saver System
• Illumination Control System

Interior Room Lamp Control System Nissan Pathfinder 5th Gen

System Description

SYSTEM DIAGRAM

OUTLINE

• Following interior room lamps are controlled by interior room lamp timer control function of BCM:

  • Map lamp*

  • Personal lamp LH/RH*

  • Cargo lamp*

• Mood lamps are controlled by the mood lamp control function of the BCM.

• Luggage room lamp is controlled by luggage room lamp control function of BCM.

• Foot lamps are controlled by the foot lamp control function of the BCM.

• Push-button ignition switch illumination is controlled by push-button ignition switch illumination control function of the Intelligent Key unit.

*: Interior room lamp timer control operates when the switch position is DOOR.

Signal transmission function list

INTERIOR ROOM LAMP TIMER CONTROL

Interior Room Lamp Timer Basic Operation

• Interior room lamps turn ON and OFF (gradual brightening and dimming) by the interior room lamp timer.

• Timer operating time is 20 seconds.

• Brightening time is 2.8 second and dimming time is 1.5 seconds.

• BCM judges the Nissan Pathfinder vehicle condition with the following items and activates the interior room lamp timer:

  • Ignition switch status

  • Door switch signal

  • Ajar switch signal

  • Door lock/unlock switch signal

  • Door unlock sensor signal

  • Door lock/unlock signal

  • Door lock/unlock request signal

Interior Room Lamp ON Operation

• BCM always turns the interior room lamp relay ON to turn on the interior room lamp when any door opens (except back door).

• BCM activates interior room lamp timer in any of the following conditions to turn interior room lamps ON for a period of time:

  • Status of all doors are OPEN –> CLOSE

  • Ignition switch is placed from engine running –> OFF

  • Door unlock signal is detected when all doors close with ignition switch OFF

NOTE:

The timer restarts 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 turn the interior room lamps OFF:

• The timer operating time is expired

• Ignition switch is placed from OFF –> engine running

• Door lock signal is detected when all doors close with ignition switch OFF

MOOD LAMP CONTROL

• BCM turns the mood lamps ON when any door (except back door) opens or any door is unlocked (except back door).

• BCM turns on dimming operation of the mood lamps when the engine is running.

• BCM turns the mood lamp OFF when door lock.

LUGGAGE ROOM LAMP CONTROL

• BCM turns the luggage room lamp ON when the back door is open (ajar switch is ON).

• BCM turns the luggage room lamp OFF when the back door is closed (ajar switch is OFF).

FOOT LAMP CONTROL

• BCM turns the foot lamps ON when any door is opened (door switch is ON).

• BCM turns the foot lamps OFF when any door is closed (door switch is OFF).

PUSH-BUTTON IGNITION SWITCH ILLUMINATION CONTROL

• BCM turns the push-button ignition switch illumination ON when ignition switch is ON.

• BCM turns the push-button ignition switch illumination OFF when ignition switch is OFF.

Interior Room Lamp Battery Saver System Nissan Pathfinder SUV

System Description

SYSTEM DIAGRAM

OUTLINE

• Interior room lamp battery saver is controlled by the BCM.

• BCM turns interior room lamps OFF depending on the Nissan Pathfinder vehicle condition. This function prevents battery discharge if the driver neglects turning OFF any lamps.

Signal transmission function list

INTERIOR ROOM LAMP BATTERY SAVER FUNCTION

• BCM turns the interior room lamp relay ON and keeps the interior room lamp power supply continuously when the ignition switch is ON.

• When the ignition switch is OFF, the BCM operates the timer for 10 minutes and then turns the interior room lamp relay OFF to cut the interior room lamp power supply.

  NOTE:

  When the ignition switch is placed OFF and all doors are locked, the BCM operates the timer for 20 seconds and then turns the interior room lamp relay OFF to cut the interior room lamp power supply.

• BCM restarts the timer when any of the following signal changes while operating the timer:

  • Ignition switch status

  • Door switch signal

  • Door lock/unlock switch signal

  • Door request switch signal

Illumination Control System Nissan Pathfinder 5th Gen

System Description

SYSTEM DIAGRAM

OUTLINE

Each illumination is controlled by each function of the BCM and combination meter.

Control by BCM:

• Parking, license plate, side marker and tail lamp control function

• Combination switch reading function

• Auto light function

Control by combination meter:

• Illumination control function

Signal transmission function list

ILLUMINATION CONTROL

• BCM detects the combination switch (lighting and turn signal switch) condition by the combination switch reading function.

• BCM transmits the position light request signal to the combination meter according to the tail lamp ON condition (refer to System Description).

• Combination meter enters nighttime mode according to the position light request signal and provides power supply to each illumination.

Squeak and Rattle Trouble Diagnoses ++Power Outlet