Infiniti M35/M45 Y50. Manual - part 4

 

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Infiniti M35/M45 Y50. Manual - part 4

 

 

DESCRIPTION

ACS-9

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Components Description

NKS004CH

CAN Communication

NKS004CI

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-52, "CAN Communication Signal Chart"

 .

Component

Vehicle-to-

vehicle 

distance 

control mode

Conventional 
(fixed speed)  

cruise 

control mode

Brake assist 

(with pre-

view func-

tion)

Description

ICC sensor integrated unit

×

×

×

●

Controls vehicle distance by operating electric throttle 
control actuator based on that sensor signals and 
CAN communication data. 

●

Controls vehicle distance by transmitting deceleration 
degree commandment value signal to ABS actuator 
and electric unit (control unit) when deceleration with 
brake is needed.

●

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

ECM

×

×

×

Transmits accelerator pedal position signal, ICC brake 
switch signal, stop lamp switch signal and ICC steering 
switch signal to ICC sensor integrated unit through CAN 
communication.

ABS actuator and electric 
unit (control unit)

×

×

×

●

Transmits vehicle speed signal (wheel speed) and 
stop lamp switch signal to ICC sensor integrated unit 
through CAN communication.

●

Receives deceleration degree commandment value 
signal from ICC sensor integrated unit, and controls 
brake fluid pressure with the ABS motor.

BCM

×

Transmits front wiper request signal to ICC sensor inte-
grated unit through CAN communication.

TCM

×

×

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

Unified meter and A/C amp.

×

×

×

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

ICC brake switch

×

×

×

Transmits operating signal to ECM when depressing 
brake pedal. ICC sensor integrated unit cancels cruise 
system at driver's brake operation.     

Stop lamp switch

×

×

×

Transmits operating signal to ECM and ABS actuator 
and electric unit (control unit) when depressing brake 
pedal. ICC sensor integrated unit cancels cruise system 
at driver's brake operation.     

ACS-10

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DESCRIPTION

Switch Operation

NKS004CJ

The system is operated by MAIN switch and four control switches, all mounted on the steering wheel.

IN VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE

IN CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE

PKIB8346E

No.

Switch name

Description

1

RESUME/ACCELERATE switch

Resumes set speed or increases speed incrementally.

2

SET/COAST switch

Sets desired cruise speed, reduces speed incrementally.

3

CANCEL switch

Deactivates system without erasing set speed.

4

DISTANCE switch

Changes the following distance from: Long, Middle, Short.

5

MAIN switch

Master switch to activate the system (press for less than 1.5 seconds)

No.

Switch name

Description

1

RESUME/ACCELERATE switch

Resumes set speed or increases speed incrementally.

2

SET/COAST switch

Sets desired cruise speed, reduces speed incrementally.

3

CANCEL switch

Deactivates system without erasing set speed.

4

DISTANCE switch

Ineffective in this mode

5

MAIN switch

Master switch to activate the system (press for more than 1.5 seconds)

DESCRIPTION

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ICC System Display

NKS004CK

The status of ICC system is displayed by dot matrix LCD, MAIN switch indicator lamp and ICC system warning
lamp on the combination meter. 

IN VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE

IN CONVENTIONAL (FIXED SPEED) CRUISE CONTROL 
MODE

PKIB8347E

No.

Display items

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

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

4

Own vehicle indicator

Indicates the base vehicle.

5

MAIN switch indicator lamp (Green)

Indicates that the MAIN switch is ON.

6

Intelligent cruise control system warning 
lamp (Orange)

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

PKIB4982J

No.

Display items

Description

1

Set switch indicator

Indicates that the set conventional (fixed speed) cruise control mode is con-
trolled.

2

MAIN switch indicator lamp (Green)

Indicates that the MAIN switch is ON.

3

Intelligent cruise control system warning 
lamp (Orange)

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

ACS-12

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ACTION TEST

ACTION TEST

PFP:00000

ICC System Running Test

NKS004CL

NOTE:
ICC system can set VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE and CONVENTIONAL (FIXED
SPEED) CRUISE CONTROL MODE when selector lever is in “D” and “M” position.

VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE 

NOTE:

●

When there is no vehicle ahead, drive at the set speed steadily.

●

When there is a vehicle ahead, control to maintain distance from the vehicle ahead, watching its speed.

Set Checking

1.

Press the MAIN switch for less than 1.5 seconds.

2.

Drive the vehicle between 40 km/h (25 MPH) and 144 km/h (90 MPH).

3.

Push down the SET/COAST switch.

4.

Confirm that the desired speed is set as hand is released from the SET/COAST switch.

NOTE:
The set vehicle speed is displayed on the dot matrix LCD in the combination meter.

Check For Increase Of Cruising Speed

1.

Set vehicle-to-vehicle distance control mode at desired speed.

2.

Check if the set speed increases by 1 km/h (1 MPH) as RESUME/ACCELERATE switch is pushed up.

NOTE:
The maximum set speed of the vehicle-to-vehicle distance control mode is 144 km/h (90 MPH).

Check For Decrease Of Cruising Speed

1.

Set vehicle-to-vehicle distance control mode at desired speed.

2.

Check if the set speed decreases by 1 km/h (1 MPH) as SET/COAST switch is pushed down.

NOTE:

●

Vehicle-to-vehicle distance control mode is automatically cancelled when the driving speed lowers to 32
km/h (20 MPH) due to the deceleration of the vehicle ahead.

●

The minimum set speed of the vehicle-to-vehicle distance control mode is 40 km/h (25 MPH).

Check For Cancellation Of Vehicle-To-Vehicle Distance Control Mode (Normal Driving Condi-
tion) In The Following Cases:

1.

When the brake pedal is depressed after the system is turned ON.

2.

When the selector lever is shifted to the “N” (Neutral) position.

3.

When the MAIN switch is turned OFF.

4.

When CANCEL switch is operated.

Check For Restoring Speed That Is Set By Vehicle-To-Vehicle Distance Control Mode Before 
Cancellation

1.

Cancel the system by depressing the brake pedal. Then, check if the speed before cancellation is
restored when pushing up RESUME/ACCELERATE switch with 40 km/h (25 MPH) or above.

2.

Cancel the system by shifting the selector lever to “N”. Then, check if the speed set before the cancella-
tion is restored when RESUME/ACCELERATE switch is pushed up.

3.

Check if the speed previously set is restored when RESUME/ACCELERATE switch is operated with driv-
ing 40 km/h (25 MPH), after canceling vehicle-to-vehicle distance control mode by operating the CANCEL
switch.

 

 

 

 

 

 

 

 

 

 

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