Infiniti QX56 (JA60). Manual — part 181
CCS-60
< SYMPTOM DIAGNOSIS >
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
ICC SYSTEM CANNOT BE SET (MAIN SWITCH TURNS ON/OFF)
Diagnosis Procedure
INFOID:0000000005146010
The ICC cannot be set in the following cases.
• When the vehicle speed is not in range of approx. 40 km/h (25 MPH) to 144 km/h (89 MPH).
• When the selector lever is in "N".
• While the brake is in operation.
• When the windshield wipers are operating.
1.
CHECK CAUSE OF AUTOMATIC CANCELLATION
1. With “CAUSE OF AUTO-CANCEL” in "WORK SUPPORT", check if any cause of cancellation exists.
Is there a cause of cancellation stored?
YES
>> • Cancel with appropriate cause.
• For causes A, B, or C, go to specified diagnosis.
A: “OPE SW VOLT CIRC”
CCS-30, "DTC 46 OPERATION SW CIRC"
.
B: “VHCL SPD UNMATCH”
: Refer to
CCS-26, "DTC 41 VHCL SPEED SE CIRC"
C: “IGN LOW VOLT”
CCS-25, "DTC 31 POWER SUPPLY CIR1, DTC 34
.
NO
>> GO TO 2
2.
PERFORM SELF-DIAGNOSIS
1. Perform -self-diagnosis to check for malfunctioning items.
Does the ICC have any DTC’s stored?
YES
>> Repair or replace as necessary, erase DTC. Perform ICC system running test. Refer to
"ACTION TEST : ICC System Running Test"
.
NO
>> GO TO 3
3.
CHECK SWITCHES AND VEHICLE SPEED SIGNAL
1. With "DATA MONITOR", check that the following switches and vehicle speed signal operate normally.
A: VHCL SPEED SE
B: NP RANGE SW
C: BRAKE SW D: SET/COAST SW
Do the monitor items display properly?
YES
>> Replace ICC unit and erase DTC. Refer to
. Perform ICC system running test.
CCS-8, "ACTION TEST : ICC System Running Test"
.
NO
>> • A: Refer to
CCS-26, "DTC 41 VHCL SPEED SE CIRC"
.
• B: Refer to
• C: Refer to
CCS-28, "DTC 45 BRAKE SW/STOP L SW"
• D: Refer to
CCS-30, "DTC 46 OPERATION SW CIRC"
.
CCS
ICC STEERING SWITCH (OTHER THAN MAIN SWITCH) DOES NOT FUNCTION
CCS-61
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
ICC STEERING SWITCH (OTHER THAN MAIN SWITCH) DOES NOT
FUNCTION
Diagnosis Procedure
INFOID:0000000005146011
RESUME will not function in the following cases:
• When ON/OFF switch is pressed once after the ICC system was ON.
• When the vehicle speed is less than 32 km/h (20 MPH).
1.
CHECK SWITCH
1. With "DATA MONITOR", check that the following switches operate normally.
“RESUME/ACC SW”, “CANCEL SW”, “DISTANCE ADJ”.
Do the monitor items display properly?
YES
>> Replace ICC unit and erase DTC. Refer to
. Perform ICC system running test.
CCS-8, "ACTION TEST : ICC System Running Test"
.
NO
>> GO TO 2
2.
CHECK DIAGNOSIS
Perform self-diagnosis with CONSULT-III.
Is "CAN COMM CIRCUIT" indicated?
YES
>> Refer to
CCS-24, "DTC 20 CAN COMM CIRCUIT"
NO
>> Refer to
CCS-30, "DTC 46 OPERATION SW CIRC"
.
CCS-62
< SYMPTOM DIAGNOSIS >
ICC SYSTEM DOES NOT CANCEL WHEN A/T SELECTOR LEVER SETS ON "N"
ICC SYSTEM DOES NOT CANCEL WHEN A/T SELECTOR LEVER SETS
ON "N"
Diagnosis Procedure
INFOID:0000000005146012
1.
CHECK D RANGE SWITCH
1. With "DATA MONITOR", check that “NP RANGE SW” operates normally.
Does the monitor item display normally?
YES
>> Replace ICC unit and erase DTC. Refer to
. Perform ICC system running test.
CCS-8, "ACTION TEST : ICC System Running Test"
.
NO
>> GO TO 2
2.
CHECK CAN COMMUNICATION
1. With self-diagnosis, check “CAN COMM CIRCUIT”.
Does "CAN COMM CIRCUIT" display with self-diagnosis?
YES
>> Refer to
CCS-24, "DTC 20 CAN COMM CIRCUIT"
NO
>> GO TO 3
3.
CHECK NP RANGE SWITCH
1. With "DATA MONITOR", check that “N” position switch operates normally.
Does the monitor item display normally?
YES
. Perform ICC system running test. Refer to
"ACTION TEST : ICC System Running Test"
.
NO
>> Repair or replace as necessary. Perform ICC system running test. Refer to
CCS
CHIME DOES NOT SOUND
CCS-63
< SYMPTOM DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
CHIME DOES NOT SOUND
Diagnosis Procedure
INFOID:0000000005146013
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.
• 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 mal-
function in detecting the vehicle ahead. Refer to
.
1.
CHECK ICC WARNING CHIME
Check warning chime operation.
Did the ICC warning chime fail to operate?
YES
>> Determine preceding vehicle detection status when malfunction occurred. If chime should have
sounded replace ICC unit. Refer to
. Perform ICC system running test. Refer
to
CCS-8, "ACTION TEST : ICC System Running Test"
.
NO
>> GO TO 2
2.
CAN COMMUNICATION INSPECTION
1. With -self-diagnosis, check “CAN COMM CIRCUIT”.
Does "CAN COMM CIRCUIT" display with self-diagnosis?
YES
>> Refer to
CCS-24, "DTC 20 CAN COMM CIRCUIT"
NO
>> Replace combination meter. Refer to
MWI-100, "Removal and Installation"
form ICC system running test. Refer to
CCS-8, "ACTION TEST : ICC System Running Test"
.
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