2011 INFINITI QX56 engine

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 along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to CCS-145,
"ADAS CONTROL UNIT : DTC Logic".
Diagnosis ProcedureINFOID:0000000006224358
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “C1A35” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A35” detected as the current malfunction?
YES >> GO TO 2.
NO >> INSPECTION END
2.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A35” 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 3.
3.CHECK ACCELERATOR PEDAL ACTUAT OR SELF-DIAGNOSIS RESULTS
Check if the DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-108, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A35 (35) APA CIR
If the accelerator pedal actuator is malfunc-
tioning Accelerator pedal actuator
Revision: 2010 May2011 QX56

CCS
C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
CCS-121
< DTC/CIRCUIT DIAGNOSIS > [ICC]
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C1A36 ACCELERATOR PEDAL ACTUATOR CAN COMM
DTC LogicINFOID:0000000006224359
DTC DETECTION LOGIC
NOTE:
If DTC “C1A36” 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 DCA system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “C1A36” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A36” detected as the current malfunction?
YES >> Refer to CCS-121, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224360
1.CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A36” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL ACTU ATOR SELF-DIAGNOSIS RESULTS
Check if the DTC is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
DAS-108, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A36 (36) APA CAN COMM CIR If an error occurs in the signal that the accel-
erator pedal actuator transmits via ITS com-
munication  ADAS control unit
 Accelerator pedal actuator
 ITS communication system
Revision: 2010 May2011 QX56

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 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 DCA system ON.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “C1A37” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A37” detected as the current malfunction?
YES >> Refer to CCS-122, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224362
1.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A37” 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.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Turn the ignition switch OFF.
2. Replace the accelerator pedal assembly.
3. Turn the ignition switch ON.
4. Erases all self-diagnosis results.
5. Perform “All DTC Reading” again.
6. Check if the DTC “C1A37” is detected in self-diagnosis results of “ICC/ADAS”.
Is
“C1A37” detected?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> INSPECTION END
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A37 (133) APA CAN CIR2 If ADAS control unit detects an error signal
that is received from accelerator pedal actu-
ator via ITS communication
Accelerator pedal actuator malfunction
Revision: 2010 May2011 QX56

CCS
C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1CCS-123
< DTC/CIRCUIT DIAGNOSIS > [ICC]
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C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1
DTC LogicINFOID:0000000006224363
DTC DETECTION LOGIC
NOTE:
If DTC “C1A38” 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 DCA system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “C1A38” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A38” detected as the current malfunction?
YES >> Refer to CCS-123, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224364
1.CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A38” in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Turn the ignition switch OFF.
2. Replace the accelerator pedal assembly.
3. Erases All self-diagnosis results.
4. Perform “All DTC Reading” again.
5. Check if the “C1A38” is detected in self-diagnosis results of “ICC/ADAS”.
Is
“C1A38” detected?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> INSPECTION END
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A38 (132) APA CAN CIR1 If ADAS control unit detects an error signal
that is received from accelerator pedal actu-
ator via ITS communication
Accelerator pedal actuator malfunction
Revision: 2010 May2011 QX56

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

CCS
C1A39 STEERING ANGLE SENSORCCS-125
< DTC/CIRCUIT DIAGNOSIS > [ICC]
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1. Start the engine.
2. Turn the MAIN switch of ICC system ON.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “C1A39” is detected as the current malfunction in self-diagnosis results of “LASER”.
Is
“C1A39” detected as the current malfunction?
YES >> Refer to CCS-125, "ICC SENSOR : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
ICC SENSOR : Diagnosis ProcedureINFOID:0000000006224368
1.CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A 39” in “Self Diagnostic Result” of “LASER”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ICC SENSOR : DTC Logic".
NO >> GO TO 2.
2.CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf 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 >> Replace the ICC sensor. Refer to CCS-176, "
Exploded View".
Revision: 2010 May2011 QX56

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

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 “U1000”, first diagnose the DTC “U1000”. Refer to
CCS-145, "
ICC
SENSOR : DTC Logic".
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 “C1A50” is detected as the current malfunction in “Self Diagnostic Result” of “LASER”.
Is
“C1A50” detected as the current malfunction?
YES >> Refer to CCS-128, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006224373
1.CHECK ICC SENSOR SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A50” in “Self Diagnostic Result” of “LASER”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to CCS-145, "
ICC SENSOR : DTC Logic".
NO >> GO TO 2.
2.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf 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 >> Replace the ICC sensor. Refer to CCS-176, "
Exploded View".
DTC Trouble diagnosis name DTC detecting condition Possible cause
C1A50 ADAS MALFUNCTION If ADAS control unit is malfunctioning ADAS control unit
Revision: 2010 May2011 QX56