2011 INFINITI QX56 Factory Service Manual

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Page 849 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-114
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A24 NP RANGE
4.PERFORM TCM SELF-DIAGNOSIS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in “Sel f Diagnostic Result” of “TRANSMISSI

Page 850 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A26 ECD MODE MALFUNCTIONCCS-115
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A26 ECD MODE MALFUNCTION
DTC LogicINFOID:0000000006224347
DTC DETECTION LOGIC
NOTE:
If DTC “C1A

CCS
C1A26 ECD MODE MALFUNCTIONCCS-115
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A26 ECD MODE MALFUNCTION
DTC LogicINFOID:0000000006224347
DTC DETECTION LOGIC
NOTE:
If DTC “C1A26” is detected along with DTC “U1000” , “U0415” or “U0121” first diagnose the DTC “U1000”,
“U0415” or “U0121”.
DTC “U1000”: Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
DTC “U0415”: Refer to CCS-141, "
ADAS CONTROL UNIT : DTC Logic".
DTC “U0121”: Refer to CCS-133, "
ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Wait for approximately 1 minute after turn ing the MAIN switch of ICC system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “C1A26” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A26” detected as the current malfunction?
YES >> Refer to CCS-115, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224348
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000”, “U0415” or “U0121” is detected other than “C1A26” 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
CCS-50, "
DTC Index".
NO >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS OF ABS ACTUAT OR AND ELECTRIC UNIT (CONTROL UNIT)
Check if any DTC is detected in “Self Diagnostic Result” of “ABS”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
BRC-51, "
DTC Index".
NO >> Replace ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board display) Trouble diagnosis name DTC detecting condition Possible cause
C1A26 (26) ECD MODE MALF If an abnormal condition occurs with ECD system ABS actuator and electric unit (control
unit)
Revision: 2010 May2011 QX56

Page 851 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-116
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A27 ECD POWER SUPPLY CIRCUIT
C1A27 ECD POWER SUPPLY CIRCUIT
DTC LogicINFOID:0000000006224349
DTC DETECTION LOGIC
NOTE:
If DTC “C1A27” is detected along wi

CCS-116
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A27 ECD POWER SUPPLY CIRCUIT
C1A27 ECD POWER SUPPLY CIRCUIT
DTC LogicINFOID:0000000006224349
DTC DETECTION LOGIC
NOTE:
If DTC “C1A27” is detected along with DTC “U1000”
, “U0415” or “U0121” first diagnose the DTC “U1000”,
“U0415” or “U0121”.
DTC “U1000”: Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
DTC “U0415”: Refer to CCS-141, "
ADAS CONTROL UNIT : DTC Logic".
DTC “U0121”: Refer to CCS-133, "
ADAS CONTROL UNIT : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Wait for approximately 1 minute after turn ing the MAIN switch of ICC system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “C1A27” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A27” detected as the current malfunction?
YES >> Refer to CCS-116, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224350
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000”, “U0415” or “U0121” is detected other than “C1A27” 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
CCS-50, "
DTC Index".
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT OF ABS ACTU ATOR AND ELECTRIC UNIT (CONTROL UNIT)
Check power supply circuit of ABS actuator and electric unit (control unit). Refer to BRC-113, "
Diagnosis Pro-
cedure".
Is the inspection result normal?
YES >> Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to BRC-51, "DTC
Index".
NO >> Repair the harnesses or connectors.
DTC
(On board display) Trouble diagnosis name DTC detecting condition Possible cause
C1A27 (27) ECD PWR SUPLY CIR ECD system power supply voltage is excessively
low ABS actuator and electric unit (con-
trol unit) power supply circuit
ABS actuator and electric unit (con- trol unit)
Revision: 2010 May2011 QX56

Page 852 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A2A ICC SENSOR POWER SUPPLY CIRCUITCCS-117
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A2A ICC SENSOR POWER SUPPLY CIRCUIT
DTC LogicINFOID:0000000006224351
DTC DETECTION LOG

Page 853 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-118
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A33 CAN TRANSMISSION ERROR
C1A33 CAN TRANSMISSION ERROR
DTC LogicINFOID:0000000006224353
DTC DETECTION LOGIC
NOTE:
If DTC “C1A33” is detected along with D

Page 854 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A34 COMMAND ERRORCCS-119
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A34 COMMAND ERROR
DTC LogicINFOID:0000000006224355
DTC DETECTION LOGIC
NOTE:
If DTC “C1A34” is detec

Page 855 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-120
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A35 ACCELERATOR PEDAL ACTUATOR
C1A35 ACCELERATOR PEDAL ACTUATOR
DTC LogicINFOID:0000000006224357
DTC DETECTION LOGIC
NOTE:
If DTC “C1A35” is detected alon

Page 856 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
CCS-121
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
DTC LogicINFOID:0000000006224359
DTC DETE

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