Infiniti QX56 (JA60). Manual — part 182
CCS-64
< SYMPTOM DIAGNOSIS >
DRIVING FORCE IS HUNTING
DRIVING FORCE IS HUNTING
Diagnosis Procedure
INFOID:0000000005146014
1.
CHECK ECM
1. Perform self-diagnosis of ECM.
Does the ECM pass the self-diagnosis test?
YES
>> Refer to
NO
>> Repair as necessary. Erase DTC and perform ICC system running test. Refer to
CCS
ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/ DETEC-
TION ZONE IS SHORT
CCS-65
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
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M
B
N
P
A
ICC SYSTEM FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD/
DETECTION ZONE IS SHORT
Diagnosis Procedure
INFOID:0000000005146015
The detection function may become disrupted in the following cases:
• When the reflector of the vehicle ahead is small or not clean enough to reflect the laser.
• When driving a road with extremely sharp corners.
• When the laser cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or
passing the peak.
1.
VISUAL CHECK
1. Check ICC sensor body window for contamination and foreign materials.
Is the ICC sensor window clean and free of obstruction?
YES
>> GO TO 2
NO
>> If any contamination or foreign materials are found, remove them. Then perform ICC system run-
ning test. Refer to
CCS-8, "ACTION TEST : ICC System Running Test"
.
2.
CHECK FUNCTION
1. After performing laser beam aiming adjustment, perform ICC system running test. Refer to
"ACTION TEST : ICC System Running Test"
. Check that preceding vehicle detection performance has
been improved.
Is the ICC system operating normally?
YES
>> INSPECTION END.
NO
>> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to
.
• Perform ICC system running test. Refer to
CCS-8, "ACTION TEST : ICC System Running Test"
.
CCS-66
< SYMPTOM DIAGNOSIS >
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
Diagnosis Procedure
INFOID:0000000005146016
1.
VISUAL CHECK
With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display are
continuously lit. (Check for a missing segment in preceding vehicle detection display.)
Does the display operate normally?
YES
>> GO TO 2
NO
>> Check combination meter. Refer to
MWI-22, "Diagnosis Description"
.
2.
VISUAL CHECK
Check ICC sensor window for contamination and foreign materials.
Is the ICC sensor window clean and free of obstruction?
YES
>> If any contamination or foreign materials are found, remove them. Perform ICC system running
test. Refer to
CCS-8, "ACTION TEST : ICC System Running Test"
.
NO
>> GO TO 3
3.
VISUAL CHECK
Check ICC sensor window for cracks and scratches.
Is the ICC sensor window intact?
YES
>> GO TO 4
NO
>> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to
.
• Perform ICC system running test. Refer to
CCS-8, "ACTION TEST : ICC System Running Test"
.
4.
ADJUST ICC SENSOR
• After performing laser beam aiming adjustment, perform ICC system running test. Refer to
TEST : ICC System Running Test"
. Check that preceding vehicle detection performance has been improved.
Is the ICC system operating normally?
YES
>> INSPECTION END.
NO
>> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to
.
• Perform ICC system running test. Refer to
CCS
NORMAL OPERATING CONDITION
CCS-67
< SYMPTOM DIAGNOSIS >
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A
NORMAL OPERATING CONDITION
Description
INFOID:0000000005146017
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 in the cargo area.
- The vehicle drives on a repeated uphill and downhill
EL-2980D
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