2011 INFINITI QX56 ignition

DAS
C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2DAS-163
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A37 ACCELERATOR PEDAL ACTUATOR CAN 2
DTC LogicINFOID:0000000006228113
DTC DETECTION LOGIC
NOTE:
If DTC “C1A37” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"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 “C1A37” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A37” detected as the current malfunction?
YES >> Refer to DAS-163, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228114
1.CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A37” 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 DAS-182, "
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

DAS-164
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1
C1A38 ACCELERATOR PEDAL ACTUATOR CAN 1
DTC LogicINFOID:0000000006228115
DTC DETECTION LOGIC
NOTE:
If DTC “C1A38” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"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 “C1A38” is detected as the current malfunction in self-diagnosis results of “ICC/ADAS”.
Is
“C1A38” detected as the current malfunction?
YES >> Refer to DAS-164, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228116
1.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A38” 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 DAS-182, "
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

DAS-166
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1F01 ACCELERATOR PEDAL ACTUATOR
C1F01 ACCELERATOR PEDAL ACTUATOR
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006228122
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the ignition switch OFF.
2. Turn the ignition switch ON.
3. Slowly depress the accelerator pedal completely, and then release it.
4. Repeat step 3 several times.
5. Perform “All DTC Reading” with CONSULT-III.
6. Check if the DTC “C1F01” is detected as the curr ent malfunction on the self-diagnosis results of “ICC/
ADAS”.
Is
“C1F01” detected as the current malfunction?
YES >> Refer to DAS-166, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006228123
1.CHECK ADAS CONTROL UNIT SE LF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1F01” in “Self Diagnos tic Result” of “ICC/ADAS”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ACCELERATOR PEDAL ACTUAT OR SELF-DIAGNOSIS RESULTS
Check if “C1F01” is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is
“C1F01” detected?
YES >> Refer to DAS-166, "ACCELERATOR PEDAL ACTUATOR : DTC Logic".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
ACCELERATOR PEDAL ACTUATOR
ACCELERATOR PEDAL ACTUATOR : DTC LogicINFOID:0000000006223586
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the ignition switch OFF.
2. Turn the ignition switch ON.
3. Slowly depress the accelerator pedal completely, and then release it.
DTC
(On board dis- play) Trouble diagnosis name DTC detecting condition Possible causes
C1F01 (91) APA MOTOR MALF If the accelerator pedal actuator motor error
is detected Accelerator pedal actuator integrated
motor malfunction
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1F01 APA MOTOR MALF If the accelerator pedal actuator motor error
is detected Accelerator pedal actuator integrated
motor malfunction
Revision: 2010 May2011 QX56

DAS-170
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1F03 ACCELERATOR PEDAL ACTUATOR
C1F03 ACCELERATOR PEDAL ACTUATOR
DTC LogicINFOID:0000000006223592
DTC DETECTION LOGIC
NOTE:
When the accelerator pedal actuator operates ex
cessively, “C1F03” may be detected temporarily.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the ignition switch OFF.
2. Wait for 10 minutes or more and cool the accelerator pedal actuator integrated motor.
3. Drive the vehicle with DCA s ystem ON and operate the system.
CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Reading” with CONSULT-III.
6. Check if the DTC “C1F03” is detected as the curr ent malfunction in self-diagnosis results of “ACCELE
PEDAL ACT”.
Is
“C1F03” detected as the current malfunction?
YES >> Refer to DAS-170, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223593
1.REPLACE ACCELERATOR PEDAL ASSEMBLY
Perform DTC confirmation procedure. If “C1F03” is detected, replace the accelerator pedal assembly. Refer to
DAS-213, "
Exploded View".
>> INSPECTION END
DTC Trouble diagnosis
name DTC detecting condition Possible causes
C1F03 APA HI TEMP  The temperature of the motor integrated in the
accelerator pedal actuator remains 100 °C
(212 °F) or more for 0.4 seconds or more
 The temperature of the motor drive circuit inte-
grated in the accelerator pedal actuator remains
120 °C (248 °F) or more for 0.4 seconds or more Accelerator pedal actuator integrated
motor malfunction
Revision: 2010 May2011 QX56

DAS
C1F06 CAN CIRCUIT2DAS-173
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1F06 CAN CIRCUIT2
DTC LogicINFOID:0000000006223598
DTC DETECTION LOGIC
NOTE:
If DTC “C1F06” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ACCELERATOR PEDAL ACTUATOR : 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 “C1F06” is detected as the current malfunction in “Self Diagnostic Result” of “ACCELE
PEDAL ACT”.
Is
“C1F06” detected as the current malfunction?
YES >> Refer to DAS-173, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223599
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1F06” in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is
“U1000” detected?
YES >> Perform the CAN communicati on system inspection. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ACCELERATOR PEDAL ACTUATOR : DTC Logic".
NO >> GO TO 2.
2.REPLACE ADAS CONTROL UNIT
1. Turn the ignition switch OFF.
2. Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
3. Erases All self-diagnosis results.
4. Perform “All DTC Reading” again.
5. Check if the “C1F06” is detected in self -diagnosis results of “ACCELE PEDAL ACT”.
Is
“C1F06” detected?
YES >> Replace the accelerator pedal assembly. Refer to DAS-213, "Exploded View".
NO >> INSPECTION END
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1F06 CAN CIR 2 If accelerator pedal actuator detects an error
signal that is received from ADAS control unit
via ITS communication ADAS control unit
Revision: 2010 May2011 QX56

DAS-174
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1F07 CAN CIRCUIT1
C1F07 CAN CIRCUIT1
DTC LogicINFOID:0000000006223600
DTC DETECTION LOGIC
NOTE:
If DTC “C1F07” is detected along with DTC “U
1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"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 “C1F07” is detected as the current malfunction in “Self Diagnostic Result” of “ACCELE
PEDAL ACT”.
Is
“C1F07” detected as the current malfunction?
YES >> Refer to DAS-173, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006223601
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1F07” in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is
“U1000” detected?
YES >> Perform the CAN communication system inspecti on. Repair or replace the malfunctioning parts.
Refer to DAS-182, "
ACCELERATOR PEDAL ACTUATOR : DTC Logic".
NO >> GO TO 2.
2.REPLACE ADAS CONTROL UNIT
1. Turn the ignition switch OFF.
2. Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
3. Erases All self-diagnosis results.
4. Perform “All DTC Reading” again.
5. Check if the “C1F07” is detected in self-diagnosis results of “ACCELE PEDAL ACT”.
Is
“C1F07” detected?
YES >> Replace the accelerator pedal assembly. Refer to DAS-213, "Exploded View".
NO >> INSPECTION END
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1F07 CAN CIR 1 If accelerator pedal actuator detects an error
signal that is received from ADAS control unit
via ITS communication ADAS control unit
Revision: 2010 May2011 QX56

DAS-182
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U1000 CAN COMM CIRCUIT
U1000 CAN COMM CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006228145
CAN COMMUNICATION
CAN (Controller Area Network) is a serial communication
line for real time applications. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicle is equipped with many electronic control units , and each control unit shares information and links with
other control units during operation (not independent). In CAN communication, control units are connected
with 2 communication lines (CAN-H, CAN-L) allowing a hi gh rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads the required data only.
CAN communication signal chart. Refer to LAN-28, "
CAN COMMUNICATION SYSTEM : CAN Communica-
tion Signal Chart".
ITS COMMUNICATION
 ITS communication is a multiplex communication system . This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines.
 ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006228146
DTC DETECTION LOGIC
NOTE:
If “U1000” is detected, first diagnose the CAN communication system.
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006228147
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the DCA system ON, and then wait for 30 seconds or more.
3. Perform “All DTC Reading” with CONSULT-III.
4. Check if the “U1000” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
ACCELERATOR PEDAL ACTUATOR
ACCELERATOR PEDAL ACTUATOR : DescriptionINFOID:0000000006223619
ITS COMMUNICATION
 ITS communication is a multiplex communication system . This enables the system to transmit and receive
large quantities of data at high speed by connecting control units with 2 communication lines
 ITS communication lines adopt twisted-pair line st yle (two lines twisted) for noise immunity.
ACCELERATOR PEDAL ACTUATOR : DTC LogicINFOID:0000000006223620
DTC DETECTION LOGIC
DTC
(On board
display) Trouble diagnosis name DTC detecting condition Possible causes
U1000 (100) CAN COMM CIRCUIT If ADAS control unit is not transmitting or receiv-
ing CAN communication signal or ITS communi-
cation signal for 2 seconds or more  CAN communication system
 ITS communication system
Revision: 2010 May2011 QX56

DAS
U1000 CAN COMM CIRCUITDAS-183
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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ACCELERATOR PEDAL ACTUATOR : Diagnosis ProcedureINFOID:0000000006223621
1.PERFORM THE SELF-DIAGNOSIS
1. Turn the ignition switch ON.
2. Turn the DCA system ON, and then wait for 2 seconds or more.
3. Perform “All DTC Readi ng” with CONSULT-III.
4. Check if the “U1000” is detected as the current malfunction in “Self Diagnostic Result” of “ACCELE
PEDAL ACT”.
Is
“U1000” detected as the current malfunction?
YES >> Refer to LAN-18, "Trouble Diagnosis Flow Chart".
NO >> Refer to GI-40, "
Intermittent Incident".
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1000 CAN COMM CIRCUIT If accelerator pedal actuator is not transmitting or
receiving ITS communication signal for 2 sec-
onds or more
ITS communication system
Revision: 2010 May2011 QX56