Infiniti G37 Coupe. Manual - part 652

EXL-28

< FUNCTION DIAGNOSIS >

[XENON TYPE]

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXTERIOR LAMP BATTERY SAVER SYSTEM

System Diagram

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System Description

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OUTLINE

• Exterior lamp battery saver system is controlled by each function of BCM and IPDM E/R.

Control by BCM

- Combination switch reading function
- Headlamp control function
- Exterior lamp battery saver function

Control by IPDM E/R

- Relay control function
• BCM turns the exterior lamp* OFF after a period of time to prevent the battery from over-discharge when the

ignition switch is turned OFF with the exterior lamp ON.

*: Headlamp (LO/HI), parking lamp, tail lamp, side marker lamp, license plate lamp and front fog lamp
NOTE:
When the lighting switch is turned AUTO, the exterior lamp battery saver switches to the auto light system.
Refer to 

EXL-12, "System Diagram"

.

EXTERIOR LAMP BATTERY SAVER ACTIVATION

BCM activates the timer and turns the exterior lamp OFF 5 minutes after the ignition switch is turned from ON

→

 OFF with the exterior lamps ON. 

NOTE:
• Headlamp control function turns the exterior lamps ON normally when the ignition switch is turned ACC or

the engine started (both before and after the exterior lamp battery saver is turned OFF).

• The timer starts at the time that the lighting switch is turned from OFF 

→

 1ST or 2ND with the exterior lamp

OFF.

JPLIA0007GB

EXTERIOR LAMP BATTERY SAVER SYSTEM

EXL-29

< FUNCTION DIAGNOSIS >

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Component Parts Location

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Component Description

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1.

Combination switch

2.

BCM

3.

IPDM E/R

4.

Unified meter and A/C amp.

A.

Dash side lower (Passenger side)

B.

Engine room dash panel (RH)

C.

Behind cluster lid C

JPLIA0579ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges the exterior lamp OFF according to the vehicle condition. Requests each re-

lay OFF to IPDM E/R (with CAN communication). 

IPDM E/R

Controls the integrated relay according to the request from BCM (with CAN communi-
cation).

Combination switch
(Lighting & turn signal switch)

Refer to 

BCS-5, "System Diagram"

.

EXL-30

< FUNCTION DIAGNOSIS >

[XENON TYPE]

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

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APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

*: This item is displayed, but is not used. 

FREEZE FRAME DATA (FFD) AND IGN COUNTER

Freeze Frame Data

The BCM records the following condition at the moment a particular DTC is detected.
• Vehicle Speed
• Odd Trip Meter

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN DIAG SUPPORT MNTR

Monitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Ecu Identification

The BCM part number is displayed.

Configuration

This function is not used even though it is displayed.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

Air conditioner*

AIR CONDITONER

×

Intelligent Key system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

BCM

BCM

×

IVIS - NATS

IMMU

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Trunk open

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

TPMS (AIR PRESSURE MONITOR)

×

×

×

DIAGNOSIS SYSTEM (BCM)

EXL-31

< FUNCTION DIAGNOSIS >

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• Vehicle Condition (BCM detected condition)

IGN Counter

IGN counter indicates the number of times that ignition switch is turned ON after DTC is detected.
• The number is 0 when a malfunction is detected now.
• The number increases like 1 

→

 2 

→

 3...38 

→

 39 after returning to the normal condition whenever ignition

switch OFF 

→

 ON.

• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

HEADLAMP

HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)

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WORK SUPPORT

CONSULT screen terms

Description

SLEEP>LOCK

While turning BCM status from low power consumption mode to normal mode (Power supply 
position is “LOCK”)

SLEEP>OFF

While turning BCM status from low power consumption mode to normal mode (Power supply 
position is “OFF”.)

LOCK>ACC

While turning power supply position from “LOCK” to “ACC”

ACC>ON

While turning power supply position from “ACC” to “IGN”

RUN>ACC

While turning power supply position from “RUN” to “ACC” (Vehicle is stopping and selector 
lever is except P position.)

CRANK>RUN

While turning power supply position from “CRANKING” to “RUN” (From cranking up the en-
gine to run it)

RUN>URGENT

While turning power supply position from “RUN“ to “ACC” (Emergency stop operation)

ACC>OFF

While turning power supply position from “ACC” to “OFF”

OFF>LOCK

While turning power supply position from “OFF” to “LOCK”

OFF>ACC

While turning power supply position from “OFF” to “ACC”

ON>CRANK

While turning power supply position from “IGN” to “CRANKING”

OFF>SLEEP

While turning BCM status from normal mode (Power supply position is “OFF”.) to low power 
consumption mode

LOCK>SLEEP

While turning BCM status from normal mode (Power supply position is “LOCK”.) to low pow-
er consumption mode

LOCK

Power supply position is “LOCK” (Ignition switch OFF with steering is locked.)

OFF

Power supply position is “OFF” (Ignition switch OFF with steering is unlocked.)

ACC

Power supply position is “ACC” (Ignition switch ACC)

ON

Power supply position is “IGN” (Ignition switch ON with engine stopped)

ENGINE RUN

Power supply position is “RUN” (Ignition switch ON with engine running)

CRANKING

Power supply position is “CRANKING” (At engine cranking)

Service item

Setting item

Setting

BATTERY SAVER SET

On*

With the exterior lamp battery saver function

Off

Without the exterior lamp battery saver function