Infiniti G37 Coupe. Manual - part 794

 

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Infiniti G37 Coupe. Manual - part 794

 

 

INL-10

< FUNCTION DIAGNOSIS >

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

Component Parts Location

INFOID:0000000001604816

Component Description

INFOID:0000000001604817

1.

Key cylinder switch

2.

Request switch

3.

Step lamp

4.

Door switch

5.

Door lock and unlock switch 

6.

Push-button ignition switch

7.

Map lamp

8.

Vanity mirror lamp

9.

Remote keyless entry receiver

10. BCM

11.

Trunk room lamp switch

12.

Trunk room lamp

A.

Behind glove box

B.

Dash side lower (Passenger side)

C.

Trunk lid lock assembly

D.

Trunk room upward

JPLIA0590ZZ

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

Transmits the lock/unlock signal to BCM.

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

INL-11

< FUNCTION DIAGNOSIS >

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• Door lock and unlock switch
• Key cylinder switch

Transmits a switch signal by power window switch serial link.

• Request switch
• Door switch

Inputs a switch signal to BCM.

Part

Description

INL-12

< FUNCTION DIAGNOSIS >

ILLUMINATION CONTROL SYSTEM

ILLUMINATION CONTROL SYSTEM

System Diagram

INFOID:0000000001604818

System Description

INFOID:0000000001604819

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-25, "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. Under the night-

time mode the combination meter controls the illuminance by controlling the each illumination lamp (ground
side).

JPLIA0092GB

ILLUMINATION CONTROL SYSTEM

INL-13

< FUNCTION DIAGNOSIS >

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Component Parts Location

INFOID:0000000001604820

Component Description

INFOID:0000000001604821

1.

Combination switch

2.

Illumination control switch

3.

Combination meter

4.

BCM

5.

IPDM E/R

6.

Unified meter and A/C amp.

A

Dash side lower (Passenger side)

B.

Engine room dash panel (RH)

C.

Behind cluster lid C

JPLIA0591ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges the illumination lamp ON/OFF status depending on the vehicle condition. 

And then it transmits position light request signal to IPDM E/R and combination 
meter (through the unified meter and A/C amp.) (with CAN communication). 

IPDM E/R

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

COMBINATION METETR

• Enters in nighttime mode according to the request from BCM (with CAN communi-

cation).

• Controls the each illumination in the nighttime mode.

Refer to 

MWI-25, "METER ILLUMINATION CONTROL : System Diagram"

.

Combination switch
(Lighting & turn signal switch)

Refer to 

BCS-5, "System Diagram"

.

 

 

 

 

 

 

 

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