Infiniti G35 (V35) Sedan. Manual - part 644

EXL-18

< FUNCTION DIAGNOSIS >

[XENON TYPE]

DAYTIME RUNNING LIGHT SYSTEM

ECM

Transmits the engine condition signal to BCM with CAN communication.

Unified meter and A/C amp.

Transmits the parking brake switch signal to BCM with CAN communication.

Part

Description

ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

EXL-19

< FUNCTION DIAGNOSIS >

[XENON TYPE]

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ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

System Diagram

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System Description

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OUTLINE

• AFS (ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM) is controlled by AFS control unit.
• AFS has AFS control (swivel control) and the headlamp auto aiming control.
- AFS control swivels the headlamp to the steering direction.
- Headlamp auto aiming control moves the headlamp light axis up/down according to the vehicle height.

AFS (ADAPTIVE FRONT-LIGHTING SYSTEM)

AFS Control Description

• AFS control controls the headlamp (right) only when the steering wheel is turned rightward, and the head-

lamp (left) only when the steering wheel is turned leftward.

• AFS control unit detects the vehicle condition necessary for AFS control with the following signals.
- AFS switch signal
- Steering angle sensor signal (received from steering angle sensor with CAN communication)
- Engine speed signal (received from ECM with CAN communication)
- Shift position signal (received from TCM with CAN communication)
- Reverse signal (received from back-up lamp switch)
- Low beam status and high beam status (received from IPDM E/R with CAN communication)
- Vehicle speed signal (received from unified meter and A/C amp. with CAN communication)
• When the operation conditions are satisfied, AFS control unit controls the swivel angle depending on the

steering angle and the vehicle speed. 

AFS operation condition

- Swivel actuator initialization completed
- AFS OFF switch OFF
- Headlamp ON
- While the engine running
- Selector lever position other than "P" or "R" (A/T models)
- Shift knob position other than reverse (M/T models)

JPLIA0100GB

EXL-20

< FUNCTION DIAGNOSIS >

[XENON TYPE]

ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

- Vehicle speed approximately 25 km/h or more (left swivel only; Right swivel activates regardless of the vehi-

cle speed.)

Swivel Actuator Initialization

• AFS control unit performs the swivel actuator initialization when detecting that the engine starts.
- Swivels the headlamp to the vehicle-center side until it hits the stopper.
- Returns the swivel angle from the stopper. Completes the initialization with regarding the returned position

as the swivel angle 0

°

 (straight-forward position). 

Swivel Operation

• AFS control unit transmits the drive signal to the swivel actuator when activation conditions are satisfied.

And swivels the headlamp.

- The swivel starts after steering approximately 20

°

 or more from straight-forward position.

NOTE:
The steering angle differs between right turn and left turn.

- The swivel angle becomes the maximum angle toward the driving direction if the steering angle is approxi-

mately 90

°

 or more depending on the vehicle speed. The swivel angle is maintained by shutting off the drive

signal.

- The swivel starts, and returns to the swivel angle 0

°

 (straight-forward position) when the steering is returned

to the straight-forward position.

• AFS control unit returns the swivel angle to the straight-forward position, and stops the swivel regardless of

the steering angle if the operation condition is not satisfied while the swivel angle is 0

°

.

AFS OFF Indicator Lamp

• AFS control unit transmits AFS OFF indicator lamp signal to the combination meter (through unified meter &

A/C amp.) with CAN communication.

• Combination meter turns AFS OFF indicator lamp ON/OFF/blinking according to AFS OFF indicator lamp

signal. 

- AFS OFF indicator lamp is turned ON for 1 second for the AFS OFF indicator lamp bulb check when the igni-

tion switch is turned ON. AFS OFF indicator lamp is turned OFF within 1 second when the engine starts. 

- AFS OFF indicator lamp is turned OFF when AFS OFF switch is turned ON.
- AFS OFF indicator lamp blinks (1 second each) if AFS control unit detects a specific DTC.

NOTE:
Combination meter blinks AFS OFF indicator lamp (approximately 1 second each) if AFS OFF indicator
lamp signal is not received from AFS control unit. 

HEADLAMP AUTO AIMING

Headlamp Auto Aiming Control Description

• Headlamp auto aiming control controls the headlamp light axis height appropriately according to the vehicle

height.

• AFS control unit detects the vehicle condition necessary for headlamp auto aiming control with the following

signals.

- Height sensor signal
- Engine speed signal (received from ECM with CAN communication)
- Low beam status signal and high beam status signal (received from IPDM E/R with CAN communication)
- Vehicle speed signal (received from unified meter and A/C amp. with CAN communication)
• When the operation conditions are satisfied, AFS control unit transmits the aiming motor drive signal for

adjusting the headlamp axis height. 

Headlamp auto aiming operation condition

- Headlamp ON
- While the engine running
- Vehicle speed (Control mode is switched according to the driving condition.)

Headlamp Auto Aiming Operation

• AFS control unit calculates the vehicle pitch angle from the height sensor signal. AFS control unit judges the

angle for adjusting the axis gap from the preset position. 

CAUTION:

Adjusted axis position may differ from the preset position although the headlamp auto aiming acti-
vates properly if the suspension is replaced or worn. 

• AFS control unit controls the headlamp axis by changing the aiming motor drive signal output according to

the vehicle-rearward height when detecting the following vehicle condition. Output is maintained if other con-
dition than following is detected.

ACTIVE ADAPTIVE FRONT-LIGHTING SYSTEM

EXL-21

< FUNCTION DIAGNOSIS >

[XENON TYPE]

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- 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

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Component Description

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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.

Front combination lamp (back)

D.

Steering column cover (inside)

E.

Instrument driver lower panel

F.

Behind instrument driver lower panel 

G.

Left rear suspension member

H.

Inside the combination meter

I.

Behind cluster lid C

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