Infiniti G37 Coupe. Manual — part 323
CCS
ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/ DETEC-
TION ZONE IS SHORT
CCS-105
< SYMPTOM DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/
DETECTION ZONE IS SHORT
Description
INFOID:0000000001606965
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:0000000001606966
1.
VISUAL INSPECTION 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
REMOVE DIRT AND FOREIGN OBJECTS
Remove any dirt and foreign objects from ICC sensor integrated unit body window.
>> GO TO 6.
3.
VISUAL INSPECTION 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
ADJUST LASER BEAM AIMING
1.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
2.
Perform ICC system action test. Refer to
CCS-11, "ACTION TEST : Special Repair Requirement (Vehicle-
To-Vehicle Distance Control Mode)"
3.
Check if preceding vehicle detection performance has been improved.
Is it improved?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 6.
6.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
CCS-106
< SYMPTOM DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
Description
INFOID:0000000001606967
When the ICC system is active, the vehicle-to-vehicle distance control mode does not perform any control
even though there is a vehicle ahead.
Diagnosis Procedure
INFOID:0000000001606968
1.
CHECK ICC SYSTEM DISPLAY IN COMBINATION METER
1.
Perform the combination meter self-diagnosis. Refer to
MWI-35, "Diagnosis Description"
.
2.
Check if the multi information display turns on normally.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace combination meter.
2.
VISUAL INSPECTION 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
REMOVE DIRT AND FOREIGN OBJECTS
Remove any stain and foreign materials from the ICC sensor integrated unit body window.
>> GO TO 6.
4.
VISUAL INSPECTION 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
ADJUST LASER BEAM AIMING
1.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
2.
Perform ICC system action test. Refer to
CCS-11, "ACTION TEST : Special Repair Requirement (Vehicle-
To-Vehicle Distance Control Mode)"
.
3.
Check if preceding vehicle detection performance has been improved.
Is it improved?
YES
>> INSPECTION END
NO
>> GO TO 6.
6.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 7.
7.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
CCS
NORMAL OPERATING CONDITION
CCS-107
< SYMPTOM DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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NORMAL OPERATING CONDITION
Description
INFOID:0000000001606969
PRECAUTIONS FOR VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE
• Intelligent Cruise Control is functionally limited. This never support careless driving and low visibility (rain,
fog, etc.). Drive the vehicle safely. Keep a safe distance between vehicles by decreasing the vehicle speed
according to the driving condition etc.
• Intelligent Cruise Control never stop the vehicle automatically. Intelligent Cruise Control is automatically
released, and the buzzer sounds if any vehicle ahead is not detected when the vehicle speed is approxi-
mately 35 km (21.5 MPH) or less.
• Use this system when the vehicle speed does not extremely change. This system may not properly function
when any vehicle cuts in, or when the vehicle ahead suddenly applies the brake. Then, the warning (buzzer
and indication) activates.
• Never use Intelligent Cruise Control in the following conditions.
- A well-trafficed road, and a tight turn.
It may cause any accident because the driving does not fit to the road condition.
- A slippery road (e.g., freezing, or snowy road)
The vehicle may lose the control by wheelspin.
- The vehicle drives in bad whether (rain, fog, snow etc.).
The distance from the vehicle ahead is not detected precisely if the whether condition is bad. Intelligent
Cruise Control is released automatically if the wiper activates in low or high speed.
- The vehicle receives bright light (sunshine etc.).
The distance from the vehicle ahead is not detected precisely if bright light enters in the vehicle.
- Raindrop or snow is on the sensor.
The distance from the vehicle ahead is not detected precisely if raindrop or snow attaches on the sensor.
- A steep downhill
The setting vehicle speed may exceed if Intelligent Cruise Control does not detect the vehicle ahead. The
brake may heat up in the vehicle-to-vehicle distance control mode.
- A repeated uphill and downhill
Intelligent Cruise Control may not detect the vehicle ahead precisely. An accident may occur by tailgating.
- Maintaining proper vehicle distance is difficult due to frequent acceleration/deceleration.
It may cause any accident because the driving does not fit to the road condition if keeping a proper vehicle-
to-vehicle distance is difficult.
- When entering in the highway interchange (swerving off the main
line),
Unexpected accident may cause if the vehicle ahead drives slower
than the preset vehicle speed. The vehicle-to-vehicle distance con-
trol mode accelerates automatically because the vehicle ahead is
not detected on the lane if the own vehicle or the vehicle ahead
changes the lane.
• Intelligent Cruise Control does not activate to the parking vehicles,
and vehicles driving extremely slower than the own vehicle. Never
hit the vehicle stopping at a tollgate, or the tail end of traffic jam.
• Intelligent Cruise Control does not activate to the vehicle edging
way, and non-vehicle objects (passengers etc.).
• This function detects the reflector of the vehicle ahead. Intelligent Cruise Control may not detect the vehicle
ahead, and keep a proper vehicle-to-vehicle distance in the following conditions. Drive the vehicle according
to the driving condition.
- The vehicle ahead installs the reflector higher (trailer etc.).
- The rear of the vehicle ahead is extremely dirt.
- The vehicle ahead or vehicle on other lanes splashes water or snow on the road.
- The vehicle ahead provides dark exhaust gas. Smoke blocks the visibility.
- The vehicle ahead attaches film on the reflector. The vehicle ahead does not install the reflector. The reflec-
tor is broken.
- Extremely heavy load is on the rear seat, or the trunk room.
- The vehicle drives on a repeated uphill and downhill
EL-2980D
CCS-108
< SYMPTOM DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
NORMAL OPERATING CONDITION
• The sensor detection distance is limited if the vehicle-to-vehicle
distance is close. The vehicle distance may not maintain properly
because the motorcycle (A) driving on the lane edge is not
detected or detecting the vehicle ahead (cutting in the own vehicle)
delays.
• The sensor dirt is detected automatically. But it is not perfect. Dirt
is not judged despite the sensor is dirt. Dirt is not detected if snow
or ice is on the sensor.
Keeping the vehicle-to-vehicle distance is difficult. Drive the vehi-
cle safely. Always clean the sensor.
Intelligent Cruise Control is released automatically if dirt is
detected.
• The vehicle ahead may not be detected temporarily, the vehicle or object on the neighboring lane may be
detected or the warning buzzer may sound according to the road shape (curve and narrow road) and the
own vehicle condition (steering, driving lane position, accident, malfunction etc.).
The vehicle ahead is not detected temporarily. The vehicle approaches too close.
PRECAUTIONS FOR CONVENTIONAL (FIXED SPEED) CRUISE CONTROL MODE
• Conventional cruise control mode does neither control the brake nor activate the warning.
Drive the vehicle safely. Keep a safe distance between vehicles by decreasing the vehicle speed according
to the driving condition etc.
• Never use the conventional cruise control mode in the following conditions.
- A well-trafficed road, and a tight turn.
It may cause any accident because the driving does not fit to the road condition.
- A slippery road (e.g., freezing, or snowy road)
The vehicle may lose the control by wheelspin.
- A steep downhill
The engine brake does not activate effectively on a steep downhill. The preset vehicle speed may exceed.
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