Infiniti EX35. Manual - part 943

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

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INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

System Diagram

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System Description

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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
• Foot 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:
Each function of interior room lamp battery saver can be set by CONSULT-III Refer to 

INL-17, "BATTERY

SAVER : CONSULT-III Function (BCM - BATTERY SAVER)"

.

JPLIA0854GB

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INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

Component Parts Location

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1.

Personal lamp

2.

Request switch

3.

Step lamp

4.

Door switch

5.

Luggage room lamp (luggage side)

6.

Key cylinder lock/unlock switch

7.

Push-button ignition switch

8.

Map lamp

9.

Vanity mirror lamp

10. Door lock/unlock switch

11.

Foot lamp

12.

Key slot

13. BCM

14.

Remote keyless entry receiver

15.

Luggage room lamp (back door side)

16. Back door switch

A.

Dash side lower (passenger side)

B.

Over the glove box

C.

Back door

D.

Back door lock assembly

JPLIA0950ZZ

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

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Component Description

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Part

Description

BCM

Operates the interior room lamp battery saver depending on the vehicle condition to 
cut the interior room lamp power supply. 

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
• Back door switch

Inputs a switch signal to BCM.

Key slot

Inputs the key switch status to BCM.

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ILLUMINATION CONTROL SYSTEM

ILLUMINATION CONTROL SYSTEM

System Diagram

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System Description

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OUTLINE

Each illumination lamp is controlled by each function of BCM, IPDM E/R and combination meter.

Control by BCM

• Combination switch reading function
• Headlamp control function

Control by IPDM E/R

• Relay control function

Control by combination meter

• Meter illumination control function (Refer to 

MWI-26, "METER ILLUMINATION CONTROL : System Dia-

gram"

.)

ILLUMINATION CONTROL

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits position light request signal to IPDM E/R and combination meter (through the unified meter

and A/C amp.) according to tail lamp ON condition.

Tail lamp ON condition

- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment (With auto light system)
• IPDM E/R turns the integrated tail lamp relay ON according to position light request signal. It provides the

power supply to each illumination lamp. 

• Combination meter enters in the nighttime mode according to position light request signal (through the uni-

fied meter and A/C amp.). Under the nighttime mode the combination meter controls the illuminance by con-
trolling the each illumination lamp (ground side).

JPLIA0092GB