2011 INFINITI QX56 Factory Service Manual

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Page 857 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-122
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2
C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2
DTC LogicINFOID:0000000006224361
DTC DETECTION LOGIC
NOTE:
If DTC “C1A37” is d

Page 858 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1CCS-123
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1
DTC LogicINFOID:0000000006224363
DTC DETECTION L

Page 859 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-124
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A39 STEERING ANGLE SENSOR
C1A39 STEERING ANGLE SENSOR
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006224365
DTC DETECTION LOGIC
NOTE:
If DTC

CCS-124
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A39 STEERING ANGLE SENSOR
C1A39 STEERING ANGLE SENSOR
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006224365
DTC DETECTION LOGIC
NOTE:
If DTC “C1A39” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to CCS-145,
"ADAS CONTROL UNIT : DTC 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 “C1A39” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A39” detected as the current malfunction?
YES >> Refer to CCS-124, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006224366
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A39” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS RESULTS
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 the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
ICC SENSOR
ICC SENSOR : DTC LogicINFOID:0000000006224367
DTC DETECTION LOGIC
NOTE:
If DTC “C1A39” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to CCS-145, "
ICC
SENSOR : DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
DTC
(On board dis- play) Trouble diagnosis name DTC detecting condition Possible causes
C1A39 (39) STRG SEN CIR If the steering angle sensor is malfunction Steering angle sensor
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1A39 STRG SEN CIR If the steering angle sensor is malfunction Steering angle sensor
Revision: 2010 May2011 QX56

Page 860 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A39 STEERING ANGLE SENSORCCS-125
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
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K L
M B
N P A
1. Start the engine.
2. Turn the MAIN switch of ICC system ON.
3. Perform “All DTC Readi ng”

Page 861 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-126
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A40 SYSTEM SWITCH CIRCUIT
C1A40 SYSTEM SWITCH CIRCUIT
DTC LogicINFOID:0000000006224369
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATI

CCS-126
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A40 SYSTEM SWITCH CIRCUIT
C1A40 SYSTEM SWITCH CIRCUIT
DTC LogicINFOID:0000000006224369
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine and wait for approximately 10 minutes or more.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “C1A40” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A40” detected as the current malfunction?
YES >> Refer to CCS-126, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224370
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A40” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK DATA MONITOR
Check that “IBA SW” operate normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES >> Refer to GI-40, "Intermittent Incident".
NO >> GO TO 3.
3.CHECK HARNESS BETWEEN ADAS CO NTROL UNIT AND IBA OFF SWITCH
1. Disconnect ADAS control unit connector.
2. Check for continuity between the ADAS control unit harness connector and IBA OFF switch harness con-
nector.
3. Check for continuity between ADAS control unit and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair the harnesses or connectors.
DTC
(On board dis-
play) Trouble diagnosis
name DTC detecting condition Possible causes
C1A40 (40) SYSTEM SW CIRC IBA OFF switch remains “O
N” (short circuit) for
10 minutes or more IBA OFF switch circuit
IBA OFF switch
ADAS control unit
ADAS control unit IBA OFF switch
Continuity
Connector Terminal Connector Terminal
B61 3 M93 7 Existed
ADAS control unit GroundContinuity
Connector Terminal
B61 3 Not existed
Revision: 2010 May2011 QX56

Page 862 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1A40 SYSTEM SWITCH CIRCUITCCS-127
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
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G H
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N P A
4.CHECK IBA OFF SW ITCH GROUND CIRCUIT
Check for continuity between IBA O FF switch harness connec

Page 863 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS-128
< DTC/CIRCUIT DIAGNOSIS >[ICC]
C1A50 ADAS CONTROL UNIT
C1A50 ADAS CONTROL UNIT
DTC LogicINFOID:0000000006224372
DTC DETECTION LOGIC
NOTE:
If DTC “C1A50” is detected along with DTC “U100

Page 864 of 5598

INFINITI QX56 2011 Factory Service Manual
CCS
C1F01 ACCELERATOR PEDAL ACTUATORCCS-129
< DTC/CIRCUIT DIAGNOSIS > [ICC]
C
D
E
F
G H
I
J
K L
M B
N P A
C1F01 ACCELERATOR PEDAL ACTUATOR
DTC LogicINFOID:0000000006224374
DTC DETECTION LOGIC
DTC CON

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