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Infiniti Q45. Manual - part 3

PREPARATION

ACS-5

[ICC]

ACS

PREPARATION

PFP:00002

Special Service Tools

NKS001JS

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

ACS-6

[ICC]

DESCRIPTION

PFP:00000

Outline

NKS001JT

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 driver can maintain the same speed as other vehicles without
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.

DESCRIPTION

ACS-7

[ICC]

ACS

Functional Diagram

NKS001JU

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

PKIC5178E

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 steer-
ing switch signal through CAN communication).

SET/COAST SW
[ON/OFF]

Indicates [ON/OFF] status as judged from steering switch signal (ECM transmits steer-
ing switch signal through CAN communication).

CANCEL SW
[ON/OFF]

Indicates [ON/OFF] status as judged from steering switch signal (ECM transmits steer-
ing switch signal through CAN communication).

RESUME/ACC SW
[ON/OFF]

Indicates [ON/OFF] status as judged from steering switch signal (ECM transmits steer-
ing 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 trans-
mits 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).

ACS-8

[ICC]

DESCRIPTION

VDC/TCS/
ABS control
unit

VHCL SPEED SE
[km/h] or [mph]

Indicates vehicle speed calculated from wheel sensor by ICC unit through CAN commu-
nication (VDC/TCS/ABS control unit transmits wheel speed sensor 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.

Front wiper
motor

WIPER SW
[OFF/LOW/HIGH]

Indicates wiper [OFF/LOW/HIGH] status.

Turn signal

TURN SIGNAL
[OFF/LH/RH
LH/RH]

Indicates turn signal [OFF/LH/RH LH/RH] status.

Input

Data monitored

Item [unit]

CAN

Description

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.

Output

CONSULT-ll ICC

[ACTIVE TEST]

Item

CAN

Description

Combination
meter

METER LAMP

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

ICC warning
chime

ICC BUZZER 1

Able to start ICC warning chime 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.

ICC brake
hold relay

STOP LAMP

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

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