Infiniti QX56 (Z62). Manual - part 226

 

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Infiniti QX56 (Z62). Manual - part 226

 

 

CCS

THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

CCS-171

< SYMPTOM DIAGNOSIS >

[ICC]

C

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THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

Description

INFOID:0000000006224455

When ICC system is active, the ICC system does not perform any control even through there is a vehicle
ahead. 

Diagnosis Procedure

INFOID:0000000006224456

1.

CHECK ICC SYSTEM DISPLAY ON MULTI INFORMATION DISPLAY

1.

Start the self-diagnosis mode of combination meter. Refer to 

MWI-29, "On Board Diagnosis Function"

2.

Check that the multi information display turns on normally.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace the combination meter.

2.

VISUAL CHECK (1)

Check ICC sensor body window for contamination and/or foreign materials. 
Do foreign materials adhere?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

WIPE OUT DIRT AND FOREIGN MATERIALS

Wipe out the contamination and/or foreign materials from the ICC sensor body window. 

>> GO TO 8.

4.

VISUAL CHECK (2)

Check ICC sensor body window for cracks and/or scratches. 
Are there cracks?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

LASER BEAM AIMING ADJUSTMENT

1.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

2.

Perform ICC system action test. Refer to 

CCS-77, "Description"

3.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

REPLACE ICC SENSOR

1.

Replace the ICC sensor. Refer to 

CCS-176, "Exploded View"

.

2.

Adjust the laser beam aiming. Refer to 

CCS-72, "Description"

3.

Perform ICC system action test. Refer to 

CCS-77, "Description"

4.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 7.

7.

REPLACE ADAS CONTROL UNIT

Replace ADAS control unit. Refer to 

DAS-63, "Removal and Installation"

.

>> GO TO 8.

8.

CHECK ICC SYSTEM

CCS-172

< SYMPTOM DIAGNOSIS >

[ICC]

THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

1.

Erase the self-diagnosis results, and then perform “All DTC Reading” again after performing the action
test. (Refer to 

CCS-77, "Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> INSPECTION END

CCS

NORMAL OPERATING CONDITION

CCS-173

< SYMPTOM DIAGNOSIS >

[ICC]

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NORMAL OPERATING CONDITION

Description

INFOID:0000000006224457

PRECAUTIONS FOR VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE

• ICC system is only an aid to assist the driver and is not a collision warning or avoidance device. It is the

driver's responsibility to stay alert, drive safely and be in control of the vehicle at all times.

• The system is primarily intended for use on straight, dry, open roads with light traffic. It is not advisable to

use the system in city traffic or congested areas.

• This system will not adapt automatically to road conditions. This system should be used in evenly flowing

traffic. Do not use the system on roads with sharp curves, or on icy roads, in heavy rain or in fog.

• The ICC sensor will not detect under most conditions.
- Stationary and slow moving vehicles.
- Pedestrians or objects in the roadway.
- Oncoming vehicles in the some lane.
- Motorcycles traveling offset in the travel lane.
• As there is a performance limit to the distance control function, never rely solely on the ICC system. This

system does not correct careless, inattentive or absent-minded driving, or overcome poor visibility in rain,
fog, or other bad weather. Decelerate the vehicle speed by depressing the brake pedal, depending on the
distance to the vehicle ahead and the surrounding circumstances in order to maintain a safe distance
between vehicles.

• If the vehicle ahead comes to a stop, the vehicle decelerates to a standstill within the limitations of the sys-

tem. The system will cancel once it judges that the vehicle has come to a standstill and sound a warning
chime. To prevent the vehicle from moving, the driver must depress the brake pedal.

• The system may not detect the vehicle in front of the driver in certain road or weather conditions. To avoid

accidents, never use the ICC system under the following conditions:

- On roads where the traffic is heavy or there are sharp curves.
- On slippery road surfaces such as on ice or snow, etc.
- On off-road surfaces such as on sand or rock, etc.
- During bad weather (rain, fog, snow, etc.)
- When the windshield wipers are operating at high speed. The ICC system may cancel when the wipers are

set to the AUTO position.

- When strong light (for example, at sunrise or sunset) is directly shining on the front of the vehicle.
- When rain, snow or dirt adhere to the system sensor.
- On steep downhill roads (the vehicle may go beyond the set vehicle speed and frequent braking may result

in overheating the brakes).

- On repeated uphill and downhill roads.
- When traffic conditions make it difficult to keep a proper distance between vehicles because of frequent

acceleration or deceleration.

- When towing a trailer or other vehicle
• In some road or traffic conditions, a vehicle or object can unexpectedly come into the sensor detection zone

and cause automatic braking. The driver may need to control the distance from other vehicles using the
accelerator pedal. Always stay alert and avoid using the ICC system when it is not recommended in this sec-
tion.

• The vehicle-to-vehicle distance control mode uses a sensor located on the front of the vehicle to detect vehi-

cles traveling ahead. The sensor generally detects the signals returned from the reflectors on a vehicle
ahead. Therefore, if the sensor cannot detect the reflector on the vehicle ahead, the ICC system may not
maintain the selected distance.

• The following are some conditions in which the sensor cannot detect the signals:
- When the reflector of the vehicle ahead is positioned high on the vehicle (trailer, etc.).
- When the reflector on the vehicle ahead is missing, damaged or covered.
- When the reflector of the vehicle ahead is covered with dirt, snow and road spray.
- When the snow or road spray from traveling vehicles reduces the sensor's visibility.
- When dense exhaust or other smoke (black smoke) from vehicles reduces the sensor's visibility.
- When excessively heavy baggage is loaded in the rear seat or the luggage room of own vehicle.
- When the vehicle is towing a trailer, etc.
• The ICC system is designed to automatically check the sensor's operation within the limitation of the system.

When the sensor is covered with dirt or is obstructed, the system will automatically be canceled. If the sen-
sor is covered with ice, a transparent or translucent vinyl bag, etc., the ICC system may not detect them. In
these instances, the vehicle-to-vehicle distance control mode may not cancel and may not be able to main-
tain the selected following distance from the vehicle ahead. Be sure to check and clean the sensor regularly.

CCS-174

< SYMPTOM DIAGNOSIS >

[ICC]

NORMAL OPERATING CONDITION

• The ICC system does not control vehicle speed or warn the driver when own vehicle approaches stationary

and slow moving vehicles. The driver must pay attention to vehicle operation to maintain proper distance
from vehicles ahead when approaching toll gates or traffic congestion.

• The detection zone of the ICC sensor is limited. A vehicle ahead

must be in the detection zone for the vehicle-to-vehicle distance
detection mode to maintain the selected distance from the vehicle
ahead. A vehicle ahead may move outside of the detection zone
due to its position within the same lane of travel. Motorcycles may
not be detected in the same lane ahead if they are traveling offset
from the center line of the lane. A vehicle that is entering the lane
ahead may not be detected until the vehicle has completely moved
into the lane. If this occurs, the ICC system may warn the driver by
blinking the system indicator and sounding the chime. The driver
may have to manually control the proper distance away from vehi-
cle traveling ahead.

• When driving on some roads, such as winding, hilly, curved, nar-

row roads, or roads which are under construction, the ICC sensor
may detect vehicles in a different lane, or may temporarily not
detect a vehicle traveling ahead. This may cause the ICC system
to decelerate or accelerate the vehicle. The detection of vehicles
may also be affected by vehicle operation (steering maneuver or
traveling position in the lane, etc.) or vehicle condition. If this
occurs, the ICC system may warn the driver by blinking the system
indicator and sounding the chime unexpectedly. The driver will
have to manually control the proper distance away from the vehicle
traveling ahead.

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