Infiniti QX56 (Z62). Manual — part 204
CCS
C1A00 CONTROL UNIT
CCS-83
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
DTC/CIRCUIT DIAGNOSIS
C1A00 CONTROL UNIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC Logic
INFOID:0000000006227990
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT-III.
3.
Check if the “C1A00” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is “C1A00” detected as the current malfunction?
YES
>> Refer to
CCS-83, "ADAS CONTROL UNIT : Diagnosis Procedure"
NO
>> INSPECTION END
ADAS CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006227991
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if any DTC other than “C1A00” is detected in “Self Diagnostic Result” of “ICC/ADAS”.
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
ICC SENSOR
ICC SENSOR : DTC Logic
INFOID:0000000006224302
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Perform “All DTC Reading” with CONSULT-III.
3.
Check if the “C1A00” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”.
Is “C1A00” detected as the current malfunction?
YES
>> Refer to
CCS-83, "ICC SENSOR : Diagnosis Procedure"
NO
>> INSPECTION END
ICC SENSOR : Diagnosis Procedure
INFOID:0000000006224303
1.
CHECK SELF-DIAGNOSIS RESULTS
Check if any DTC other than “C1A00” is detected in “Self Diagnostic Result” of “LASER”.
DTC
(On board dis-
play)
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A00
(0)
CONTROL UNIT
ADAS control unit internal malfunction
ADAS control unit
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
C1A00
CONTROL UNIT
ICC sensor internal malfunction
ICC sensor
CCS-84
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C1A00 CONTROL UNIT
Is any DTC detected?
YES
>> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
.
NO
>> Replace the ICC sensor. Refer to
.
CCS
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
CCS-85
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC Logic
INFOID:0000000006227992
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A01” or “C1A02” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/
ADAS”.
Is “C1A01” or “C1A02” detected as the current malfunction?
YES
>> Refer to
CCS-85, "ADAS CONTROL UNIT : Diagnosis Procedure"
NO
>> Refer to
GI-40, "Intermittent Incident"
.
ADAS CONTROL UNIT : Diagnosis Procedure
INFOID:0000000006227993
1.
CHECK ADAS CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of ADAS control unit. Refer to
Is the inspection result normal?
YES
>> Replace the ADAS control unit. Refer to
DAS-63, "Removal and Installation"
NO
>> Repair or replace the malfunctioning parts.
ICC SENSOR
ICC SENSOR : DTC Logic
INFOID:0000000006224306
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start the engine.
2.
Turn the MAIN switch of ICC system ON.
3.
Perform “All DTC Reading” with CONSULT-III.
4.
Check if the “C1A01” or “C1A02” is detected as the current malfunction in “Self Diagnostic Result” of
“LASER”.
Is “C1A01” or “C1A02” detected as the current malfunction?
YES
>> Refer to
CCS-86, "ICC SENSOR : Diagnosis Procedure"
DTC
(On board dis-
play)
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A01
(1)
POWER SUPPLY
CIR
The battery voltage sent to ADAS control unit re-
mains less than 7.9 V for 5 seconds
• Connector, harness, fuse
• ADAS control unit
C1A02
(2)
POWER SUPPLY
CIR 2
The battery voltage sent to ADAS control unit re-
mains more than 19.3 V for 5 seconds
DTC
Trouble diagnosis
name
DTC detecting condition
Possible causes
C1A01
POWER SUPPLY
CIR
The battery voltage sent to ICC sensor remains
less than 7.9 V for 5 seconds
• Connector, harness, fuse
• ICC sensor
C1A02
POWER SUPPLY
CIR 2
The battery voltage sent to ICC sensor remains
more than 19.3 V for 5 seconds
CCS-86
< DTC/CIRCUIT DIAGNOSIS >
[ICC]
C1A01 POWER SUPPLY CIRCUIT 1, C1A02 POWER SUPPLY CIRCUIT 2
NO
>> Refer to
GI-40, "Intermittent Incident"
.
ICC SENSOR : Diagnosis Procedure
INFOID:0000000006224307
1.
CHECK ICC SENSOR POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of ICC sensor. Refer to
CCS-158, "ICC SENSOR : Diagnosis Proce-
.
Is the inspection result normal?
YES
>> Replace the ICC sensor. Refer to
.
NO
>> Repair or replace the malfunctioning parts.
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