Infiniti QX56 (JA60). Manual — part 169
CCS-12
< FUNCTION DIAGNOSIS >
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
FUNCTION DIAGNOSIS
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System Description
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For information regarding the automatic speed control device, refer to
CCS
INTELLIGENT CRUISE CONTROL SYSTEM
CCS-13
< FUNCTION DIAGNOSIS >
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INTELLIGENT CRUISE CONTROL SYSTEM
System Diagram
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System Description
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• 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).
• To activate or deactivate the ICC system and set the vehicle speed and vehicle-to-vehicle distance, use the
ICC steering switch.
• The operation status of the ICC system is indicated on the ICC system display of the combination meter.
VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
• Vehicle-to-vehicle distance control mode, the vehicle 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 ICC sensor integrated unit 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 390 ft (120 m) 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
depresses 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.
WKIA1976E
CCS-14
< FUNCTION DIAGNOSIS >
INTELLIGENT CRUISE CONTROL SYSTEM
ICC STEERING SWITCH
ICC system is operated by MAIN switch and four control switches, all mounted on the steering wheel.
NOTE:
The on board self-diagnosis function of the ICC system can be started with the RESUME/ACCELERATE
switch and SET/COAST switch. Refer to
CCS-17, "Diagnosis Description"
.
In Vehicle-To-Vehicle Distance Control Mode
In Conventional (Fixed Speed) Cruise Control Mode
ICC SYSTEM DISPLAY
For information about the ICC system display, refer to the Owner Manual.
1.
ACCELERATE/RESUME switch
2.
COAST/SET switch
3.
CANCEL switch
4.
ON/OFF switch
5.
DISTANCE switch
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No.
Switch name
Description
1
ACCEL/RES switch
Resumes set speed or increases speed incrementally.
2
SET/COAST switch
Sets desired cruise speed or reduces speed incrementally.
3
CANCEL switch
Deactivates system without erasing set speed.
4
ON/OFF switch
Master switch to activate the system.
5
DISTANCE switch
Changes the following distance from: Long, Middle, Short.
No.
Switch name
Description
1
ACCEL/RES switch
Resumes set speed or increases speed incrementally.
2
SET/COAST switch
Sets desired cruise speed or reduces speed incrementally.
3
CANCEL switch
Deactivates system without erasing set speed.
4
ON/OFF switch
Master switch to activate the system.
5
DISTANCE switch
Ineffective in this mode.
CCS
INTELLIGENT CRUISE CONTROL SYSTEM
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Component Parts Location
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1.
ICC system display
2.
Combination meter M23, M24 (with
built in information display)
3.
ICC steering switch M102
4.
ICC brake hold relay E134
5.
ICC sensor E42
6.
ICC brake switch E43
7.
Stop lamp switch E38
8.
ICC unit B13, B17 (view with luggage
side finisher lower LH removed)
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