Infiniti FX35, FX50 (S51). Manual — part 344

CCS-196

< SYSTEM DESCRIPTION >

[DCA]

DISTANCE CONTROL ASSIST SYSTEM

NOTE:

When the DCA system is automatically canceled, the cancellation condition can be displayed on “WORK SUPPORT” of CONSULT-III
(ICC).

ICC SENSOR INTEGRATED UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item

Condition

Description

Display on combination meter

Warning
display

When the DCA switch is turned ON
with settings of DCA system and LDP
system OFF

The DCA system is not activated. The DCA
system switch indicator blinks.

• When the VDC or ABS (including

the TCS) operates

• When the VDC is turned OFF
• When the snow mode switch is

turned ON

• When driving into a strong light

(i.e., sunlight)

The DCA system is automatically can-
celed. The chime will sound and the DCA
system switch indicator will blink.
NOTE:
The system operates if the DCA switch is
turned OFF

⇒

ON after the condition im-

proves.

When the sensor window is dirty,
making it impossible to detect a vehi-
cle ahead

The DCA system is automatically can-
celed. The chime sounds and the ICC sys-
tem warning lamp will come on and the
“CLEAN SENSOR” indicator will appear.
NOTE:
Stop the vehicle in a safe location and turn
the ignition switch OFF. Clean the dirty
area with soft cloth. The system returns to
normal condition when turning the ignition
switch ON again.

When the DCA system is not operat-
ing properly

The chime sounds and the ICC system
warning lamp will come on.
NOTE:
Turn the ignition switch OFF, and then turn
the ignition switch ON again. If there is no
malfunction, the system returns to the nor-
mal condition.

JPOIA0165ZZ

JPOIA0166ZZ

JPOIA0167ZZ

Transmit unit

Signal name

Description

ECM

Accelerator pedal position signal

Receives the accelerator pedal position signal from ECM via CAN
communication.

ICC brake switch signal

Receives the ICC brake switch signal from ECM via CAN communi-
cation.

Stop lamp switch signal

Receives the stop lamp switch signal from ECM via CAN communi-
cation.

Closed throttle position signal

Receives the closed throttle position signal from ECM via CAN com-
munication.

Engine speed signal

Receives the engine speed signal from ECM via CAN communica-
tion.

ICC steering
switch signal

DCA switch signal

Receives the ICC steering switch signal (DCA switch signal) from
ECM via CAN communication.

TCM

Shift position signal

Receives the shift position signal from TCM via CAN communication.

Output shaft revolution signal

Receives the output shaft revolution signal from TCM via CAN com-
munication.

Current gear position signal

Receives the current gear position signal from TCM via CAN com-
munication.

Input speed signal

Receives the input speed signal from TCM via CAN communication.

CCS

DISTANCE CONTROL ASSIST SYSTEM

CCS-197

< SYSTEM DESCRIPTION >

[DCA]

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Output Signal Item

Brake booster
control unit

Brake fluid pressure control signal

Receives the brake fluid pressure control signal from the brake
booster control unit via ITS communication.

Release switch signal

Receives the release switch signal from the brake booster control
unit via ITS communication.

ABS actuator
and electric unit
(control unit)

Vehicle speed signal

Receives the vehicle speed signal (wheel speed) from ABS actuator
and electric unit (control unit) via CAN communication.

AV control unit

System selection signal

Receives the system selection signal from the AV control unit via
CAN communication.

Steering angle
sensor

Steering angle sensor signal

Receives the steering angle sensor signal from the steering angle
sensor via CAN communication.

Accelerator ped-
al actuator

Accelerator pedal actuator status signal

Receives the accelerator pedal actuator status signal from the accel-
erator pedal actuator via ITS communication.

Transmit unit

Signal name

Description

Reception unit

Signal name

Description

Combination
meter (via uni-
fied meter and A/
C amp.)

Meter display
signal

Vehicle ahead detection
indicator signal

Transmits the meter display signal to the combination meter (via uni-
fied meter and A/C amp.) via CAN communication.

DCA system switch indi-
cator signal

ICC warning lamp signal

Transmits the ICC warning lamp signal to the combination meter
(through unified meter and A/C amp.) via CAN communication.

ICC warning
chime

Buzzer output signal

• Transmits the buzzer output signal to the brake booster control

unit via ITS communication.

• The brake booster control unit outputs the buzzer output signal

and operates the ICC warning chime.

ICC brake hold
relay

ICC brake hold relay drive signal

• Transmits the ICC brake hold relay drive signal to the brake boost-

er control unit via ITS communication.

• The brake booster control unit outputs the ICC brake hold relay

drive signal and operates the ICC brake hold relay.

Brake booster
control unit

Brake fluid pressure command signal

Transmits the brake fluid pressure command signal to the brake
booster control unit via ITS communication.

Accelerator ped-
al actuator

Accelerator pedal position signal

Transmits the accelerator pedal position signal received from ECM
via CAN communication to the accelerator pedal actuator via ITS
communication.

Accelerator pedal feedback force control
signal

Transmits the accelerator pedal feedback force control signal to the
accelerator pedal actuator via ITS communication.

CCS-198

< SYSTEM DESCRIPTION >

[DCA]

DISTANCE CONTROL ASSIST SYSTEM

Component Parts Location

INFOID:0000000005501780

Component Description

INFOID:0000000005501781

1.

ICC steering switch

2.

Information display, ICC system
warning lamp
(On the combination meter)

3.

AV control unit
Refer to the following.
• With single monitor:

AV-160,

"Component Parts Location"

• With twin monitor:

AV-365, "Com-

ponent Parts Location"

4.

ECM
Refer to the following.
• VQ35HR:

EC-31, "Component

Parts Location"

• VK50VE:

EC-589, "Component

Parts Location"

5.

ICC sensor integrated unit
Refer to

CCS-27, "Component Parts

Location"

.

6.

ICC brake hold relay
Refer to

CCS-27, "Component Parts

Location"

.

7.

Booster solenoid/ Release switch
Refer to

CCS-27, "Component Parts

Location"

.

8.

Brake pressure sensor
Refer to

CCS-27, "Component Parts

Location"

.

9.

Accelerator pedal actuator (acceler-
ator pedal assembly)

10. Stop lamp switch

Refer to

CCS-27, "Component Parts

Location"

.

11.

ICC brake switch
Refer to

CCS-27, "Component Parts

Location"

.

12. ICC warning chime

Refer to

CCS-27, "Component Parts

Location"

.

13. Brake booster control unit

Refer to

CCS-27, "Component Parts

Location"

.

JSOIA0154GB

Component

Description

ICC sensor integrated unit

Refer to

CCS-211, "Description"

.

ECM

Refer to

CCS-246, "Description"

.

ABS actuator and electric unit (control
unit)

Refer to

CCS-217, "Description"

.

TCM

Refer to

CCS-305, "Description"

.

Unified meter and A/C amp.

Receives the meter display signal and ICC warning lamp signal from ICC sensor integrat-
ed unit via CAN communication and transmits them to the combination meter via the com-
munication line.

Combination meter

• Perform the following operations using the signals received from the unified meter and

A/C amp. via the communication line.

- Displays the DCA system operation status using the meter display signal.
- Illuminates the ICC system warning lamp using the ICC warning lamp signal.

CCS

DISTANCE CONTROL ASSIST SYSTEM

CCS-199

< SYSTEM DESCRIPTION >

[DCA]

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ICC brake switch

Refer to

CCS-219, "Description"

.

Stop lamp switch

ICC brake hold relay

Refer to

CCS-239, "Description"

.

Brake booster control unit

Refer to

CCS-257, "Description"

.

Brake booster

Refer to

CCS-257, "Description"

.

Brake pressure sensor

Refer to

CCS-227, "Description"

.

Booster solenoid/release switch

• Refer to

CCS-229, "Description"

for booster solenoid.

• Refer to

CCS-232, "Description"

for release switch.

ICC warning chime

Refer to

CCS-321, "Description"

.

Steering angle sensor

Refer to

CCS-281, "Description"

.

Accelerator pedal actuator

Refer to

CCS-286, "Description"

.

AV control unit

Transmits a system selection signal to the ICC sensor integrated unit via CAN communi-
cation.

Component

Description