Infiniti FX35 / FX45. Manual - part 3

ACS-6

< SERVICE INFORMATION >

[ICC]

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000001328804

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

Uses for laser beam aiming adjustment

PKIA0358J

DESCRIPTION

ACS-7

< SERVICE INFORMATION >

[ICC]

C

D

E

F

G

H

I

J

L

M

A

B

ACS

N

O

P

DESCRIPTION

Outline

INFOID:0000000001328805

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

With vehicle-to-vehicle distance control mode, the driver can maintain the same speed as other vehicles with-
out the constant need to adjust the set speed as the driver would with a normal cruise control system.
The system is intended to enhance the operation of the vehicle when following the vehicle traveling 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 120 m (390 ft) 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.

Functional Diagram

INFOID:0000000001328806

Items of input/output signal to be checked with CONSULT-III

PKIC8700E

ACS-8

< SERVICE INFORMATION >

[ICC]

DESCRIPTION

DATA MONITOR INPUT ITEM LIST

DATA MONITOR OUTPUT ITEM LIST

Input

Data monitored 

Item [unit]

CAN

Description

ECM

THRTL OPENING
[%]

×

Indicates throttle angle read by ICC unit through CAN communication (ECM transmits 
throttle angle through CAN communication).

ENGINE RPM
[rpm]

×

Indicates engine speed read by ICC unit through CAN communication (ECM transmits 
engine speed through CAN communication).

MAIN SW
[On/Off]

×

Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering 
switch signal through CAN communication).

SET/COAST SW
[On/Off]

×

Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering 
switch signal through CAN communication).

CANCEL SW
[On/Off]

×

Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering 
switch signal through CAN communication).

RESUME/ACC SW
[On/Off]

×

Indicates [On/Off] status as judged from steering switch signal (ECM transmits steering 
switch signal through CAN communication).

IDLE SW
[On/Off]

×

Indicates [On/Off] status of idle switch read by ICC unit through CAN communication 
(ECM transmits ON/OFF status through CAN communication).

TCM

VHCL SPD AT
[km/h] or [mph]

×

Indicates vehicle speed calculated from AT vehicle speed sensor by ICC unit through 
CAN communication (TCM transmits AT vehicle speed sensor signal through CAN com-
munication).

GEAR
[1, 2, 3, 4, 5]

×

Indicates AT gear position read by ICC unit through CAN communication (TCM transmits 
gear position through CAN communication).

D RANGE SW
[On/Off]

×

Indicates [On/Off] status of “D” position read by ICC unit through CAN communication 
(TCM transmits ON/OFF condition of “D” position through CAN communication).

NP RANGE SW
[On/Off]

×

Indicates PNP switch signal read by ICC unit through CAN communication (TCM trans-
mits PNP switch signal through CAN communication).

ABS actuator 
and electric 
unit (control 
unit)

VHCL SPEED SE
[km/h] or [mph]

×

Indicates vehicle speed calculated from wheel sensor by ICC unit through CAN commu-
nication (ABS actuator and electric unit (control unit) transmits wheel speed sensor signal 
through CAN communication).

BCM

WIPER SW
[Off/Low/High]

×

Indicates wiper [Off/Low/High] status (BCM transmits front wiper request signal through 
CAN communication). 

Brake pres-
sure sensor

PRESS SENS
[bar]

Indicates brake fluid pressure value calculated from signal voltage of pressure sensor.

Release 
switch

RELEASE SW NO
[On/Off]

Indicates [On/Off] status as judged from release switch signal.
ON when brake is depressed.
OFF when brake is not depressed.

RELEASE SW NC
[On/Off]

Indicates [On/Off] status as judged from release switch signal.
ON when brake is not depressed.
OFF when brake is depressed.

ICC brake 
switch

BRAKE SW
[On/Off]

Indicates [On/Off] status as judged from ICC brake switch signal.

Stop lamp 
switch

STOP LAMP SW
[On/Off]

Indicates [On/Off] status as judged from stop lamp switch signal.

Output

Data monitored 

Item [unit]

CAN

Description

ICC warning 
chime

BUZZER O/P
[On/Off] 

×

Indicates [On/Off] status of ICC warning chime output.

ICC brake hold 
relay

STP LMP DRIVE
[On/Off]

Indicates [On/Off] status of brake hold relay drive output.

DESCRIPTION

ACS-9

< SERVICE INFORMATION >

[ICC]

C

D

E

F

G

H

I

J

L

M

A

B

ACS

N

O

P

ACTIVE TEST ITEM LIST

Component Description

INFOID:0000000001328807

CAN Communication

INFOID:0000000001328808

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-43, "CAN System Specification Chart"

.

Output

CONSULT-III ICC 

[ACTIVE TEST] 

Item

CAN

Description

Combination 
meter

ICC BUZZER 1

×

Able to start ICC warning chime with a driving signal from ICC unit.

METER LAMP

×

Able to turn ICC system display ON with a driving signal from ICC unit.

ICC brake hold 
relay

STOP LAMP

Able to start ICC brake hold relay with a driving signal from ICC unit.

Booster sole-
noid

BOOSTER SOL/V 
3

Able to start booster solenoid with a driving signal from ICC unit.

Component

Vehicle-to-

vehicle 

distance 

control mode

Conventional 
(fixed speed) 

cruise 

control mode

Brake assis 

(with preview 

function)

Description

ICC unit

×

×

×

Operates electric throttle control actuator and brake 
booster based on that sensor signals and CAN commu-
nication data, then controls vehicle distance.

ICC sensor

×

×

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

ECM

×

×

×

Transmits throttle position signal and ICC steering switch 
signal to ICC unit through CAN communication.

ABS actuator and electric 
unit (control unit)

×

×

×

Transmits wheel speed sensor signal to ICC unit through 
CAN communication.

Brake pressure sensor

×

×

Detects fluid pressure in master cylinder.

Brake booster

×

×

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

BCM

×

Transmit front wiper request signal to ICC unit through 
CAN communication.

TCM

×

×

Transmits gear position signal and output shaft revolu-
tion signal to ICC unit through CAN communication.

Unified meter and A/C amp.

×

×

×

Receives ICC system display signal, ICC warning lamp 
signal and buzzer output signal from ICC unit through 
CAN communication.

ICC brake switch, stop lamp 
switch

×

×

×

Transmit operating signal to ICC unit when touching 
brake pedal. ICC unit cancels cruise system at driver's 
brake operation.     

ICC brake hold relay

×

Receives stop lamp driving signal from ICC unit, and 
turns stop lamp ON.

Parking brake switch

×

×

The  cruise system is cancelled when applied.