Infiniti QX56 (Z62). Manual — part 223
CCS
POWER SUPPLY AND GROUND CIRCUIT
CCS-159
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
3.
Check for continuity between ICC sensor harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair the ICC sensor ground circuit.
ICC sensor
Ground
Continuity
Connector
Terminal
E65
4
Existed
CCS-160
< SYMPTOM DIAGNOSIS >
[ICC]
INTELLIGENT CRUISE CONTROL SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
INTELLIGENT CRUISE CONTROL SYSTEM SYMPTOMS
Symptom Table
INFOID:0000000006224440
Symptoms
Reference page
Operation
MAIN switch does not turn ON
Refer to
MAIN switch does not turn OFF
ICC system cannot be set (MAIN switch turns
ON/OFF)
Refer to
CANCEL switch does not function
Refer to
Resume does not function
Set speed does not increase
Set distance to a vehicle ahead cannot be
changed
ICC is not canceled when the A/T selector lever
is “N” position
Display/Chime
ICC system display not appear
MWI-29, "On Board Diagnosis Function"
Chime does not sound
Refer to
Control
Driving force is hunting
Function to detect
a vehicle ahead
System frequently cannot detect a vehicle ahead
Distance to detect a vehicle ahead is short
System misidentifies a vehicle even though there
is no vehicle ahead
• Adjust laser beam aiming: Refer to
• Perform ICC system action test. Refer to
System misidentifies a vehicle in the next lane
System does not detect a vehicle at all
CCS
MAIN SWITCH DOES NOT TURN ON, MAIN SWITCH DOES NOT TURN OFF
CCS-161
< SYMPTOM DIAGNOSIS >
[ICC]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
MAIN SWITCH DOES NOT TURN ON, MAIN SWITCH DOES NOT TURN
OFF
Description
INFOID:0000000006224441
MAIN switch does not turn ON
• ICC system display does not appear even when MAIN switch is pressed.
MAIN switch does not turn OFF
• When ICC system display is ON, display does not turn OFF even if MAIN switch is pressed.
NOTE:
When ICC system warning lamp illuminates, perform the self-diagnosis of ICC system, and then repair or
replace the malfunctioning parts.
Diagnosis Procedure
INFOID:0000000006224442
1.
MAIN SWITCH INSPECTION
1.
Start the engine.
2.
Check that “MAIN SW” and “CRUISE LAMP” operate normally in “DATA MONITOR” of “ICC/ADAS” with
CONSULT-III.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 4.
2.
CHECK COMBINATION METER
Check that “CRUISE IND” operates normally in “DATA MONITOR” of “METER/M&A”.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 4.
3.
PERFORM SELF-DIAGNOSIS OF COMBINATION METER
1.
Perform “Self Diagnostic Result” of “METER/M&A”.
2.
Check if DTC is detected. Refer to
.
Is any DTC detected?
YES
>> Repair or replace malfunctioning parts.
NO
>> GO TO 4.
4.
PERFORM SELF-DIAGNOSIS RESULTS OF ICC SYSTEM
1.
Perform “All DTC Reading”.
2.
Check if the “U1000” is detected in self-diagnosis results of “ICC/ADAS”.
Is “U1000” detected?
YES
>> GO TO 5.
NO
>> GO TO 6.
5.
CAN COMMUNICATIONS INSPECTION
Check the CAN communication and repair or replace malfunctioning parts. Refer to
>> INSPECTION END
6.
CHECK ICC STEERING SWITCH
Check the ICC steering switch. Refer to
.
>> INSPECTION END
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)
Description
INFOID: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 below 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-wiper, 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 Procedure
INFOID: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
.
“VHCL SPD UNMATCH”>>Refer to
“IGN LOW VOLT”>>Refer to
CCS-85, "ADAS CONTROL UNIT : DTC Logic"
“ECM CIRCUIT”>>Refer to
.
“CAN COMM ERROR”>>Refer to
CCS-145, "ADAS CONTROL UNIT : DTC Logic"
“ICC SENSOR CAN COMM ERR”>>Refer to
.
“ABS/TCS/VDC CIRC”>>Refer to
.
“ECD CIRCUIT”>>Refer to
.
2.
PERFORM THE SELF-DIAGNOSIS
1.
Perform “All DTC Reading”.
2.
Check if any DTC is detected in “Self Diagnostic Result” of “ICC/ADAS”” of “LASER”. Refer to
(ICC/ADAS) or
(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 normally in “DATA MONITOR” of “ICC/ADAS”.
-
“VHCL SPEED SE”
-
“D RANGE SW”
-
“SET/COAST SW”
-
“BRAKE SW”
-
“WIPER SW”
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