Infiniti FX35, FX50 (S51). Manual - part 339

CCS-176

< SYMPTOM DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS 

SHORT

FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION
ZONE IS SHORT

Description

INFOID:0000000005501755

The detection function may become unstable in the following cases.
• When the reflector of the vehicle ahead is deficient/ not clean enough to reflect the radar.
• When driving a road with extremely sharp corners. 
• When the sensor cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or

passing the peak.

Diagnosis Procedure

INFOID:0000000005501756

1.

VISUAL CHECK (1)

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

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

WIPE OUT DIRT AND FOREIGN MATERIALS

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

>> GO TO 6.

3.

VISUAL CHECK (2)

Check ICC sensor integrated unit body window for cracks and scratches.
Are there any cracks or scratches?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

ADJUST LASER BEAM AIMING

1.

Adjust the laser beam aiming. Refer to 

CCS-13, "LASER BEAM AIMING ADJUSTMENT : Description"

. 

2.

Perform ICC system action test. Refer to 

CCS-18, "ACTION TEST : Description"

. 

3.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 5.

5.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Replace the ICC sensor integrated unit. Refer to 

CCS-184, "Exploded View"

.

2.

Adjust the laser beam aiming. Refer to 

CCS-13, "LASER BEAM AIMING ADJUSTMENT : Description"

. 

>> GO TO 6.

6.

CHECK ICC SYSTEM

1.

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

CCS-18, "ACTION TEST : Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> INSPECTION END

CCS

THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

CCS-177

< SYMPTOM DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

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THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL

Description

INFOID:0000000005501757

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

Diagnosis Procedure

INFOID:0000000005501758

1.

CHECK ICC SYSTEM DISPLAY ON MULTI INFORMATION DISPLAY

1.

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

MWI-43, "Diagnosis Description"

. 

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 integrated unit 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 integrated unit body window. 

>> GO TO 7.

4.

VISUAL CHECK (2)

Check ICC sensor integrated unit 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-13, "LASER BEAM AIMING ADJUSTMENT : Description"

. 

2.

Perform ICC system action test. Refer to 

CCS-18, "ACTION TEST : Description"

. 

3.

Check that the vehicle ahead detection performance improves. 

Does it improve?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

REPLACE ICC SENSOR INTEGRATED UNIT

1.

Replace the ICC sensor integrated unit. Refer to 

CCS-184, "Exploded View"

.

2.

Adjust the laser beam aiming. Refer to 

CCS-13, "LASER BEAM AIMING ADJUSTMENT : Description"

. 

>> GO TO 7.

7.

CHECK ICC SYSTEM

1.

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

CCS-18, "ACTION TEST : Description"

 for action test.)

2.

Check that the ICC system is normal. 

>> INSPECTION END

CCS-178

< SYMPTOM DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

INFOID:0000000005501759

PRECAUTIONS FOR VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE

CAUTION:

• 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 advis-

able 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 distance 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 visi-
bility 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 main-
tain a safe distance between vehicles.

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

the system. 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.
- During bad weather (rain, fog, snow, etc.)

When the front wiper is operated at the low speed (LO) or high speed (HI) position, the ICC system is
automatically canceled.

- 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 fre-

quent acceleration or deceleration.

• Do not use the ICC system if own vehicle is towing a trailer. The system may not detect a vehicle

ahead.

• In some road or traffic conditions, a vehicle or object can unexpectedly come into the sensor detec-

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

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

detect vehicles traveling ahead. The sensor generally detects the signals returned from the reflec-
tors 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.
• 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 can-
celed. If the sensor 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 can-

CCS

NORMAL OPERATING CONDITION

CCS-179

< SYMPTOM DIAGNOSIS >

[ICC (FULL SPEED RANGE)]

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cel and may not be able to maintain the selected following distance from the vehicle ahead. Be sure
to check and clean the sensor regularly.

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

tionary 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,

narrow roads, or roads which are under construction, the ICC
sensor may detect vehicles in a different lane, or may tempo-
rarily not detect a vehicle traveling ahead. This may cause the
ICC system to decelerate or accelerate the vehicle. The detec-
tion 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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