Infiniti M35/M45 Y50. Manual — part 18
![](/vehicles/zatt/cen/houeebante/cheve.png)
TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-65
[ICC]
C
D
E
F
G
H
I
J
L
M
A
B
ACS
Symptom 3: ICC System Cannot Be Operated by CANCEL Switch, RESUME/
ACCELERATE Switch or DISTANCE Switch
NKS004DM
RESUME does not function in the following cases.
●
When MAIN switch is turned off once.
●
When the vehicle speed is less than 25 MPH (40 km/h).
1.
CHECK SWITCHES
With CONSULT-II
With “ICC” “DATA MONITOR”, check if switches operate normally.
●
“RESUME/ACC SW”
●
“CANCEL SW”
●
“DISTANCE SW”
OK or NG
OK
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG
>> GO TO 2.
2.
PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
With CONSULT-II
1.
Perform self-diagnosis.
2.
Check if “DTC 100 CAN COMM CIRCUIT” is indicated.
Is it indicated?
YES
>> CAN communication inspection. Refer to
ACS-61, "DTC 100 CAN COMM CIRCUIT"
NO
>> ICC steering switch inspection. Refer to
ACS-48, "DTC 6 OPERATION SW CIRC"
.
Symptom 4: ICC System Is Not Cancelled When the A/T Selector Lever Is In
Other Than “D” and “M”
NKS004DN
1.
CHECK D RANGE SWITCH
With CONSULT-II
With “ICC” “DATA MONITOR”, check if “D RANGE SW” and “NP RANGE SW” operate normally.
OK or NG
OK
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG
>> GO TO 2.
2.
PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
With CONSULT-II
1.
Perform self-diagnosis.
2.
Check if “DTC 100 CAN COMM CIRCUIT” is indicated.
Is it indicated?
YES
>> CAN communication inspection. Refer to
ACS-61, "DTC 100 CAN COMM CIRCUIT"
NO
>> GO TO 3.
![](/vehicles/zatt/cen/houeebante/pabeys.png)
ACS-66
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
3.
CHECK D RANGE SWITCH
With CONSULT-II
With “A/T” “DATA MONITOR”, check if “SLCT LVR POSI” operates normally.
OK or NG
OK
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG
>> 1. Perform “A/T” self-diagnosis. Refer to
AT-90, "CONSULT-II Function (A/T)"
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
Symptom 5: Chime Does Not Sound
NKS004DO
The chime may not sound occasionally in the following cases even if the distance from the vehicle ahead is
short:
●
When the speed difference from that of the vehicle ahead is small (both vehicles driving at similar speed).
●
When the vehicle ahead drives at faster speed (the actual distance is increasing).
●
When depressing the accelerator pedal.
●
Chime does not sound when the vehicle is not driving.
●
Chime does not sound when the system does not detect any vehicle ahead. (Diagnose the conditions
under which the system is detecting the vehicle ahead and when the system is malfunctioning. If there is
any malfunction in detecting the vehicle ahead, check the system following the
System Frequently Cannot Detect the Vehicle Ahead/ Detection Zone Is Short"
1.
CHECK ICC WARNING CHIME
With CONSULT-II
With “ICC” “ACTIVE TEST”, check if “ICC BUZZER” operates normally.
OK or NG
OK
>> 1. Determine preceding vehicle detection status when malfunction occurred. If chime should have
sounded: after replacing ICC sensor integrated unit and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test, and then perform self-diagnosis of ICC sys-
tem again.
NG
>> GO TO 2.
2.
PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
With CONSULT-II
1.
Perform self-diagnosis.
2.
Check if “DTC 100 CAN COMM CIRCUIT” is indicated.
Is it indicated?
YES
>> CAN communication inspection. Refer to
ACS-61, "DTC 100 CAN COMM CIRCUIT"
NO
>> GO TO 3.
3.
CHECK UNIFIED METER AND A/C AMP.
With CONSULT-II
Perform “METRE A/C AMP” self-diagnosis. Refer to
DI-31, "CONSULT-II Function (METER A/C AMP)"
Is malfunction indicated?
YES
>> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 4.
![](/vehicles/zatt/cen/houeebante/foleor.png)
TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-67
[ICC]
C
D
E
F
G
H
I
J
L
M
A
B
ACS
4.
CHECK CHIME OPERATION
With CONSULT-II
1.
Select “BUZZER” on “BCM”.
2.
With “BUZZER” “ACTIVE TEST”, check if “IGN KEY WARN ALM” and “LIGHT WARN ALM” operate nor-
mally.
Does chime sound?
YES
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> 1. Replace combination meter.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Symptom 6: Driving Force Is Hunting
NKS004DP
1.
PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
Perform “ENGINE” self-diagnosis. Refer to
EC-123, "CONSULT-II Function (ENGINE)"
(for VQ35DE) or
826, "CONSULT-II Function (ENGINE)"
(for VK45DE).
Is malfunction indicated?
YES
>> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
ACS-67, "Symptom 7: ICC System Frequently Cannot Detect the Vehicle Ahead/ Detec-
Symptom 7: ICC System Frequently Cannot Detect the Vehicle Ahead/ Detection
Zone Is Short
NKS004DQ
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.
1.
VISUAL CHECK 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES
>> 1. If any, remove them.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 2.
2.
VISUAL CHECK 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 3.
![](/vehicles/zatt/cen/houeebante/thitho.png)
ACS-68
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
3.
ADJUST LASER BEAM AIMING
1.
Adjust laser beam aiming. Refer to
ACS-15, "LASER BEAM AIMING ADJUSTMENT"
2.
Perform ICC system running test. Check if preceding vehicle detection performance has been improved.
Is it improved?
YES
>> INSPECTION END
NO
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Symptom 8: The System Does Not Detect the Vehicle Ahead at All
NKS004DR
1.
CHECK DISPLAY
Check if dot matrix LCD in the combination meter illuminate. Refer to
DI-17, "Self-Diagnosis Mode of Combi-
.
OK or NG
OK
>> GO TO 2.
NG
>> Check combination meter. Refer to
DI-18, "HOW TO PERFORM TROUBLE DIAGNOSIS"
2.
VISUAL CHECK 1
Check ICC sensor integrated unit body window for contamination and foreign materials.
Is it found?
YES
>> 1. If any, remove them.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 3.
3.
VISUAL CHECK 2
Check ICC sensor integrated unit body window for cracks and scratches.
Is it found?
YES
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 4.
4.
ADJUST LASER BEAM AIMING
1.
Adjust laser beam aiming. Refer to
ACS-15, "LASER BEAM AIMING ADJUSTMENT"
2.
Perform ICC system running test. Check if preceding vehicle detection performance has been improved.
Is it improved?
YES
>> INSPECTION END
NO
>> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
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