Infiniti M45 (Y34). Manual - part 10

PREPARATION

ACS-33

[ICC]

C

D

E

F

G

H

I

J

L

M

A

B

ACS

PREPARATION

PFP:00002

Special Service Tools

AKS002PR

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number 
(Kent – Moore No.)
Tool name

Description

KV99110100
(J-45718)
ICC target board

Laser beam aiming adjustment

PKIA0358J

ACS-34

[ICC]

DESCRIPTION

DESCRIPTION

PFP:00000

Outline

AKS00AO0

The Intelligent Cruise Control (ICC) system automatically maintains a selected distance from the vehicle
ahead according to that vehicle's speed, or at the set speed, if the road ahead is clear.
The ICC function has two cruise control modes and brake assist (with preview function).

VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE

Vehicle-to-vehicle distance control mode, the same speed as other vehicles can be maintained without the
constant need to adjust the operating speed as with a normal cruise control system.
The system is intended to enhance the operation of the vehicle when following another vehicle in the same
lane and direction.
If the distance sensor detects a slower moving vehicle ahead, the system will reduce speed so that the vehicle
ahead can be followed at the selected distance.
The system automatically controls the throttle and applies the brakes (up to 25% of vehicle braking power) if
necessary.
The detection range of the sensor is approximately 390 ft (120 m) ahead.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.

CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE

Conventional (fixed speed) cruise control mode is cruising at preset speeds.
Refer to Owner's Manual for Intelligent Cruise Control System operating instructions.

BRAKE ASSIST (WITH PREVIEW FUNCTION)

When the force applied to brake pedal exceeds a certain level, the Brake Assist is activated and generates a
greater braking force than that of a conventional brake booster even with light pedal force.
When the Preview Function identifies the need to apply the sudden brake by sensing the vehicle ahead in the
same lane and the distance and relative speed from it, it applies the brake pre-pressure before driver depress
the brake pedal and improves brake response by reducing its free play. 
Refer to Owner's Manual for BRAKE ASSIST (WITH PREVIEW FUNCTION) operating instructions.

System Diagram

AKS002PT

SKIA3065E

DESCRIPTION

ACS-35

[ICC]

C

D

E

F

G

H

I

J

L

M

A

B

ACS

Components Description

AKS002PU

CAN Communication

AKS002PV

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tric control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN COMMUNICATION UNIT

Refer to 

LAN-21, "CAN Communication Unit"

 .

Switch Operation

AKS002PW

The system is operated by a master ON/OFF switch and four control switches, all mounted on the steering
wheel.

Component

Vehicle-to-

vehicle 

distance 

control 

mode

Conven-

tional 
(fixed 

speed) 

cruise 

control 

mode

Brake 
assist 

(with pre-

view func-

tion)

Description

ICC unit

×

×

×

Operates ASCD actuator and brake booster based on that sensor 
signals and CAN communication data, then controls vehicle dis-
tance.

ICC sensor

×

×

Irradiate laser beam, and receives reflected laser beam to measure 
distance from preceding vehicle.

ECM

×

×

Transmits throttle angle signal to ICC unit.

Brake pressure sensor

×

×

Detects fluid pressure in master cylinder.

ASCD actuator

×

×

Based on command from ICC unit, adjust throttle valve angle with 
ASCD actuator, using vacuum emerged from vacuum pump.

Brake booster

×

×

Adjusts brake fluid pressure, based on command from ICC unit.

No.

Switch name

Description

1

ON/OFF switch

Master switch to activate the system

2

ACCELERATE/RESUME switch

Resumes set speed or increases speed incrementally

SKIA1605E

ACS-36

[ICC]

DESCRIPTION

ICC System Display

AKS00AO1

3

CANCEL switch

Deactivates system without erasing set speed

4

DISTANCE switch

Changes the following distance from: Long, Middle, short

5

COAST/SET switch

Sets desired cruise speed, reduces speed incrementally

No.

Switch name

Description

SKIA6177E

No.

Component

Description

1

Set vehicle speed indicator

Indicates the set vehicle speed.

2

Vehicle ahead detection indicator

Indicates whether it detects a vehicle ahead.

3

Set distance indicator

Display the selected distance between vehicles set with the DISTANCE 
switch.

4

Own vehicle indicator

Indicates the base vehicle.

5

ON/OFF switch indicator lamp (Green)

Indicates that the ON/OFF switch is ON.

6

Intelligent cruise control system warning 
lamp (Yellow)

The light comes on if there is a malfunction in the ICC system.

7

Cruise set switch indicator lamp

Indicates that the conventional cruise control mode is controlled.