2011 INFINITI QX56 Factory Service Manual

fuel filter location tire pressure clock maintenance towing oil change

Page 897 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-162
< SYMPTOM DIAGNOSIS >[ICC]
ICC SYSTEM CANNOT BE SET
(MAIN SWITCH TURNS ON/OFF)
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
DescriptionINFOID:0000000006224443
The MAIN switch can be t

CCS-162
< SYMPTOM DIAGNOSIS >[ICC]
ICC SYSTEM CANNOT BE SET
(MAIN SWITCH TURNS ON/OFF)
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
DescriptionINFOID:0000000006224443
The MAIN switch can be turned ON/OFF, but the ICC system cannot be set even if the SET/COAST switch is
pressed.
NOTE:
The system cannot be set in the following case.
When the vehicle ahead is not detected bel ow the speed of 32 km/h (20 MPH).
When the selector lever is not in the “D” position or manual mode.
When the front wipers are operating at HI.
(If the vehicle is equipped with a rain sensing auto-wi per, the system may cancel when the wipers are set to
AUTO)
When the brake pedal is depressed.
When driving into a strong light (i.e., sunlight).
When the VDC is turned OFF.
When ABS or VDC (including the TCS) operates.
When a wheel slips.
When SNOW mode switch is turned ON.
When ABS warning lamp is ON.
When 4WD shift switch is not AUTO position.
Diagnosis ProcedureINFOID:0000000006224444
1.CHECK CAUSE OF AUTOMATIC CANCELLATION
Check if there is the cancellation cause in the “CAUSE OF AUTO-CANCEL” on “WORK SUPPORT” of “ICC/
ADAS” with CONSULT-III.
Is it displayed?
Not displayed>>GO TO 2.
“OPE SW VOLT CIRC”>>Refer to CCS-94, "
DTC Logic".
“VHCL SPD UNMATCH”>>Refer to CCS-87, "
DTC Logic".
“IGN LOW VOLT”>>Refer to CCS-85, "
ADAS CONTROL UNIT : DTC Logic".
“ECM CIRCUIT”>>Refer to CCS-103, "
DTC Logic".
“CAN COMM ERROR”>>Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
“ICC SENSOR CAN COMM ERR”>>Refer to CCS-137, "
DTC Logic".
“ABS/TCS/VDC CIRC”>>Refer to CCS-89, "
DTC Logic".
“ECD CIRCUIT”>>Refer to CCS-115, "
DTC Logic".
2.PERFORM THE SELF-DIAGNOSIS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in “Self Diagnosti c Result” of “ICC/ADAS”” of “LASER”. Refer to CCS-50,
"DTC Index" (ICC/ADAS) or CCS-55, "DTC Index" (LASER).
Is any DTC detected?
YES >> GO TO 3.
NO >> GO TO 4.
3.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts identified by the self-diagnosis result.
>> GO TO 6.
4.CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL
1. Start the engine.
2. Check that the following items operate no rmally in “DATA MONITOR” of “ICC/ADAS”.
- “VHCL SPEED SE”
- “D RANGE SW”
- “SET/COAST SW”
- “BRAKE SW”
-“WIPER SW”
Revision: 2010 May2011 QX56

Page 898 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
CCS-163
< SYMPTOM DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
- “PKB SW”
Is there a malfunctioning item?
All items are normal>>GO TO 5.

Page 899 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-164
< SYMPTOM DIAGNOSIS >[ICC]
ICC STEERING SWITCH (OTHER THAN
MAIN SWITCH) DOES NOT FUNCTION
ICC STEERING SWITCH (OTHER THAN MAIN SWITCH) DOES NOT
FUNCTION
DescriptionINFOID:0000000006224445
MA

Page 900 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
ICC SYSTEM DOES NOT CANCEL WHEN A/T SELECTOR LEVER SETS ON "N"
CCS-165
< SYMPTOM DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
ICC SYSTEM DOES NOT CANCEL WH EN A/T SELECTOR LEVER SETS
ON "N"
De

Page 901 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-166
< SYMPTOM DIAGNOSIS >[ICC]
CHIME DOES NOT SOUND
CHIME DOES NOT SOUND
DescriptionINFOID:0000000006224449
Symptom check: In the following conditions, the warni
ng chime may not sound even if th

CCS-166
< SYMPTOM DIAGNOSIS >[ICC]
CHIME DOES NOT SOUND
CHIME DOES NOT SOUND
DescriptionINFOID:0000000006224449
Symptom check: In the following conditions, the warni
ng chime may not sound even if the vehicle distance is
short.
When the vehicles are traveling at the same s peed and the distance between vehicles is not changing.
When the vehicle ahead is traveling faster and t he distance between vehicles is increasing.
The warning chime will not sound when the accelera tor pedal is depressed, overriding the system.
The warning chime will not sound when own vehicle approaches vehicles that are parked or moving slowly.
The warning chime does not sound when the system does not detect any vehicle ahead. (Diagnose the con-
ditions under which the system is detecting the vehicle ahead and when the system is malfunctioning. If
there is any malfunction in detecting the v ehicle ahead, check the system following the CCS-169, "
Descrip-
tion".)
Diagnosis ProcedureINFOID:0000000006224450
1.PERFORM ACTIVE TEST
Check if the warning chime sounds on the active test item “ICC BUZZER” of “ICC/ADAS” with CONSULT-III.
Does the warning chime sound?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK THE MALFUNCTION SYMPTOM D URING WARNING CHIME OPERATION
Understand the vehicle ahead detecting condition when the malfunction occurred. If the warning chime should
have sounded, replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
>> GO TO 8.
3.CHECK ICC WARNING CHIME CIRCUIT
Check the meter buzzer circuit. Refer to WCS-40, "
Component Function Check".
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 6.
4.PERFORM THE SELF-DIAGNOSIS
1. Perform “All DTC Reading” with CONSULT-III.
2. Check if the “U1000” is detected in self-diagnosis results of “ICC/ADAS”.
Is
“U1000” detected?
YES >> GO TO 5.
NO >> GO TO 7.
5.CAN COMMUNICATIONS SYSTEM INSPECTION
Check the CAN communication system and repair or replace malfunctioning parts. Refer to CCS-145, "
ADAS
CONTROL UNIT : DTC Logic".
>> INSPECTION END
6.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts.
>> GO TO 8.
7.REPLACE ADAS CONTROL UNIT
Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
>> GO TO 8.
Revision: 2010 May2011 QX56

Page 902 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
CHIME DOES NOT SOUNDCCS-167
< SYMPTOM DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
8.CHECK ICC SYSTEM
1. Erase the self-diagnosis results, and then perform “All DTC Reading” again after p

Page 903 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-168
< SYMPTOM DIAGNOSIS >[ICC]
DRIVING FORCE IS HUNTING
DRIVING FORCE IS HUNTING
DescriptionINFOID:0000000006224451
The vehicle causes hunting when the ICC system is active.
Diagnosis ProcedureI

Page 904 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS
SHORT
CCS-169
< SYMPTOM DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
FREQUENTLY CANNOT DETECT TH E VEHICLE AHEAD / DETECTION
ZON

CCS
FREQUENTLY CANNOT DETECT THE VEHICLE AHEAD / DETECTION ZONE IS
SHORT
CCS-169
< SYMPTOM DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
FREQUENTLY CANNOT DETECT TH E VEHICLE AHEAD / DETECTION
ZONE IS SHORT
DescriptionINFOID:0000000006224453
The detection function may become unstable in the following cases.
When the reflector of the vehicle ahead is def icient/ not clean enough to reflect ICC sensor.
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 ProcedureINFOID:0000000006224454
1.VISUAL CHECK (1)
Check ICC sensor body window for cont amination 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 ma terials from the ICC sensor body window.
>> GO TO 7.
3.VISUAL CHECK (2)
Check ICC sensor 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-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 5.
5.REPLACE ICC SENSOR
1. Replace 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 6.
6.REPLACE ADAS CONTROL UNIT
Replace ADAS control unit. Refer to DAS-63, "
Removal and Installation".
>> 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-77, "
Description" for action test.)
2. Check that the ICC system is normal.
Revision: 2010 May2011 QX56

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