Infiniti QX56 (Z62). Manual - part 185

CCS

PRECAUTIONS

CCS-7

< PRECAUTION >

[ICC]

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• Bypass connection is never allowed at the repaired area.

NOTE:
Bypass connection may cause ITS communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost.

ICC System Service

INFOID:0000000006224263

CAUTION:

• Never look straight into the laser beam discharger when adjusting laser beam aiming.
• Turn the MAIN switch OFF in conditions similar to driving, such as free rollers or a chassis dyna-

mometer.

• Never use the ICC sensor removed from vehicle. Never disassemble or remodel.
• Erase DTC when replacing parts of ICC system, then check the operation of ICC system after adjust-

ing laser beam aiming if necessary. 

SKIB8767E

CCS-8

< PREPARATION >

[ICC]

PREPARATION

PREPARATION

PREPARATION

Special Service Tools

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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

CCS

COMPONENT PARTS

CCS-9

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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1.

ICC steering switch

2.

Information display, ICC system 
warning lamp, IBA OFF indicator 
lamp, buzzer
(On the combination meter)

3.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

4.

Transfer control unit
Refer to 

DLN-10, "Component Parts 

Location"

5.

ICC brake hold relay

6.

ECM
Refer to 

EC-16, "Component Parts 

Location"

7.

ICC sensor

8.

TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

9.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-10, "Component Parts 

Location"

10. Stop lamp switch

11.

ICC brake switch

12. IBA OFF switch

JSOIA0362ZZ

CCS-10

< SYSTEM DESCRIPTION >

[ICC]

COMPONENT PARTS

Component Description

INFOID:0000000006224266

×

: Applicable

13. Steering angle sensor

Refer to 

BRC-10, "Component Parts 

Location"

14. ADAS control unit

Refer to 

DAS-13, "Component Parts 

Location"

A.

Back side of engine room (RH)

B.

Front bumper (center)

C.

Upper side of brake pedal

D.

Under side of instrument lower driver 
panel

Component

Function

Description

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 di

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 co

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Co

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en

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o

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a

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(f

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 sp

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rui

se

 co

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rol

 mo

de

In

te

lli

ge

nt Brak

e Ass

is

t 

(IB

A

)

Brak

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)

ADAS control unit

×

×

×

×

• ADAS control unit calculates a target distance between vehicles 

and a target speed, based on signals received from each sensor 
and switch to transmit an engine torque command value to ECM 
and a brake fluid pressure control signal to ABS actuator and 
electric unit (control unit) via CAN communication

• ADAS control unit transmits buzzer output signal to combination 

meter via CAN communication

ICC sensor

×

×

×

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• ICC sensor detects light reflected from a vehicle ahead by irra-

diating laser forward and calculates a distance from the vehicle 
ahead and a relative speed, based on the detected signal

• ICC sensor transmits the presence/absence of vehicle ahead 

and the distance from the vehicle to ADAS control unit via ITS 
communication

ECM

×

×

×

×

• ECM transmits the accelerator pedal position signal, ICC brake 

switch signal, stop lamp switch signal, ICC steering switch sig-
nal, etc. to ADAS control unit via CAN communication

• ECM controls the electric throttle control actuator based on the 

engine torque demand received from the ADAS control unit via 
CAN communication

ABS actuator and electric unit 
(control unit)

×

×

×

×

• ABS actuator and electric unit (control unit) transmits the vehicle 

speed signal (wheel speed), stop lamp signal and VDC/TCS/
ABS system operation condition to ADAS control unit via CAN 
communication

• ABS actuator and electric unit (control unit) controls the brake, 

based on a brake fluid pressure control signal received from the 
ADAS control unit via CAN communication

BCM

×

BCM transmits the front wiper request signal to ADAS control unit 
via CAN communication

TCM

×

×

TCM transmits the signal related to A/T control to ADAS control 
unit via CAN communication