Infiniti G37 Coupe. Manual - part 650

EXL-20

< FUNCTION DIAGNOSIS >

[XENON TYPE]

ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

- Engine starts.
- Headlamp is turned ON.
- Vehicle posture becomes stable after changing the vehicle posture change is detected with the headlamp

ON and the vehicle stopped.

- Vehicle speed is maintained with the headlamp ON and the vehicle driven.

Component Parts Location

INFOID:0000000001604595

1.

IPDM E/R

2.

ECM

3.

Swivel actuator

4.

Aiming motor

5.

Steering angle sensor

6.

AFS OFF switch

7.

AFS control unit

8.

Height sensor

9.

AFS OFF indicator lamp

10. Unified meter and A/C amp.

A.

Engine room dash panel (RH)

B.

Behind glove box

C.

Integrated in the front combination 
lamp

D.

Steering column cover (inside)

E.

Instrument driver lower panel

F.

Behind instrument driver lower panel 

G.

Rear suspension member (LH)

H.

On the combination meter

I.

Behind cluster lid C

JSLIA0130ZZ

ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

EXL-21

< FUNCTION DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

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O

P

Component Description

INFOID:0000000001604596

Part

Description

AFS control unit

Refer to 

EXL-53, "Description"

.

Swivel actuator

Refer to 

EXL-42, "Description"

.

Aiming motor

Refer to 

EXL-70, "Description"

.

AFS switch

Inputs AFS switch ON/OFF signal to AFS control unit.

Height sensor

Refer to 

EXL-47, "Description"

.

Steering angle sensor

Refer to 

EXL-56, "Description"

.

IPDM E/R

Transmits the headlamp (LO) ON signal and the headlamp (HI) ON signal to AFS control 
unit with CAN communication.

ECM

Transmits the engine speed signal to AFS control unit with CAN communication.

TCM

Refer to 

EXL-50, "Description"

.

Unified meter and A/C amp.

Refer to 

EXL-51, "Description"

.

Combination meter

Turns AFS OFF indicator lamp ON/OFF/blinking according to AFS control unit request [with 
CAN communication (through unified meter and A/C amp.)].

EXL-22

< FUNCTION DIAGNOSIS >

[XENON TYPE]

FRONT FOG LAMP SYSTEM

FRONT FOG LAMP SYSTEM

System Diagram

INFOID:0000000001604597

System Description

INFOID:0000000001604598

OUTLINE

• Front fog lamp is integrated into the front combination lamp.
• Front fog lamp is controlled by combination switch reading function and front fog lamp control function of

BCM, and relay control function of IPDM E/R.

NOTE:
For Canada models, the front fog lamp is turned ON as the daytime running light. Refer to 

EXL-28, "System

Diagram"

 for the detail.

FRONT FOG LAMP OPERATION 

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits the front fog lamp request signal to IPDM E/R with CAN communication according to the

front fog lamp ON condition.

Front fog lamp ON condition

- Front fog lamp switch ON with the headlamp ON (except for the high beam ON)
• IPDM E/R turns the integrated front fog lamp relay ON, and turns the front fog lamp ON according to the

front fog lamp request signal.

JPLIA0004GB

FRONT FOG LAMP SYSTEM

EXL-23

< FUNCTION DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

Component Parts Location

INFOID:0000000001604599

Component Description

INFOID:0000000001604600

1.

Front fog lamp

2.

Combination switch

3.

BCM

4.

IPDM E/R

A.

Dash side lower (Passenger side)

B.

Engine room dash panel (RH)

JPLIA0585ZZ

Part

Description

BCM

• Judges each switch condition by the combination switch reading function.
• Judges the front fog lamp ON/OFF status according to the vehicle condition. Re-

quests the front fog lamp relay ON to IPDM E/R (with CAN communication). 

IPDM E/R

Controls the integrated relay and supplies voltage to the load according to the request 
from BCM (with CAN communication).

Combination switch
(Lighting & turn signal switch)

Refer to 

BCS-5, "System Diagram"

.