2011 INFINITI QX56 check engine

DAS
C1A21 UNIT HIGH TEMPDAS-153
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A21 UNIT HIGH TEMP
DTC LogicINFOID:0000000006228090
DTC DETECTION LOGIC
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the ignition switch OFF.
2. Wait for 10 minutes or more to cool the ICC sensor.
3. Start the engine.
4. Turn the DCA system ON.
5. Perform “All DTC Readi ng” with CONSULT-III.
6. Check if the “C1A21” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A21” detected as the current malfunction?
YES >> Refer to DAS-153, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228091
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A21” is detected in “S elf Diagnostic Result” of “LASER”.
Is
“C1A21” detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
CCS-111, "
ICC SENSOR : DTC Logic".
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
C1A21 (21) ICC SENSOR HIGH
TEMP
ICC sensor judges high temperature abnormality
Temperature around the ICC sensor
becomes high
Revision: 2010 May2011 QX56

DAS-154
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A24 NP RANGE
C1A24 NP RANGE
DTC LogicINFOID:0000000006228092
DTC DETECTION LOGIC
NOTE:
If DTC “C1A24” 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.CHECK DTC REPRODUCE (1)
1. Start the engine.
2. Turn the DCA system ON.
3. Wait for approximately 5 minutes or more afte r shifting the selector lever to “P” position.
4. Perform “All DTC Reading” with CONSULT-III.
5. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-154, "Diagnosis Procedure".
NO >> GO TO 2.
2.CHECK DTC REPRODUCE (2)
1. Wait for approximately 5 minutes or more after shifting the selector lever to “N” position.
2. Perform “All DTC Reading”.
3. Check if the “C1A24” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A24” detected as the current malfunction?
YES >> Refer to DAS-154, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228093
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A24” 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.CHECK NP POSITION SWITCH SIGNAL
Check that “NP RANGE SW” operates normally in “DATA MONITOR” of “ICC/ADAS”.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
3.CHECK TCM DATA MONITOR
Check that “SLCT LVR POSI” operates normally in “DATA MONITOR” of “TRANSMISSION”.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 4.
DTC
(On board dis-
play) Trouble diagnosis name DTC detecting condition Possible causes
C1A24 (24) NP RANGE A mismatch between a shift position signal
transmitted from TCM via CAN communica-
tion and an current gear position signal contin-
ues for 60 seconds or more TCM
 Transmission range switch
Revision: 2010 May2011 QX56

DAS-156
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A26 ECD MODE MALFUNCTION
C1A26 ECD MODE MALFUNCTION
DTC LogicINFOID:0000000006228094
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 DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
 DTC “U0415”: Refer to DAS-180, "
DTC Logic".
 DTC “U0121”: Refer to DAS-175, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Wait for approximately 1 minute after turning the DCA system ON.
3. Perform “All DTC Reading” 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 DAS-156, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228095
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
DAS-100, "
DTC Index".
NO >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR 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

DAS
C1A27 ECD POWER SUPPLY CIRCUITDAS-157
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A27 ECD POWER SUPPLY CIRCUIT
DTC LogicINFOID:0000000006228096
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 DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
 DTC “U0415”: Refer to DAS-180, "
DTC Logic".
 DTC “U0121”: Refer to DAS-175, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Wait for approximately 1 minute af ter turning the DCA system ON.
3. Perform “All DTC Readi ng” 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 DAS-157, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228097
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
DAS-100, "
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 el
ectric unit (con-
trol unit) power supply circuit
 ABS actuator and el ectric unit (con-
trol unit)
Revision: 2010 May2011 QX56

DAS-158
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A2A ICC SENSOR POWER SUPPLY CIRCUIT
C1A2A ICC SENSOR POWER SUPPLY CIRCUIT
DTC LogicINFOID:0000000006228098
DTC DETECTION 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 “C1A2A” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A2A” detected as the current malfunction?
YES >> Refer to DAS-158, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228099
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A2A” 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
DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
NO >> GO TO 2.
2.CHECK ICC SENSOR SELF-DIAGNOSIS
Check if any DTC is detected in “Self Diagnostic Result” of “LASER”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
CCS-55, "
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
C1A2A (80) ICC SEN PWR SUP CIR Abnormal powe
r supply voltage in ICC sensor Harness, connector, fuse
 ICC sensor
Revision: 2010 May2011 QX56

DAS
C1A33 CAN TRANSMISSION ERRORDAS-159
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A33 CAN TRANSMISSION ERROR
DTC LogicINFOID:0000000006228100
DTC DETECTION LOGIC
NOTE:
If DTC “C1A33” 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 “C1A33” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A33” detected as the current malfunction?
YES >> Refer to DAS-159, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228101
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1A33” 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 >> 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
C1A33 (33) CAN TRANSMISSION
ERR If an error occurs in the CAN communication
signal that ADAS control
unit transmits to ECMADAS control unit
Revision: 2010 May2011 QX56

DAS-160
< DTC/CIRCUIT DIAGNOSIS >[DCA]
C1A34 COMMAND ERROR
C1A34 COMMAND ERROR
DTC LogicINFOID:0000000006228102
DTC DETECTION LOGIC
NOTE:
If DTC “C1A34” 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. Operate the ICC system and drive. CAUTION:
Always drive safely.
3. Stop the vehicle.
4. Perform “All DTC Reading” with CONSULT-III.
5. Check if the “C1A34” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A34” detected as the current malfunction?
YES >> Refer to DAS-160, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228103
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “C1A34” 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 >> 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
C1A34 (34) COMMAND ERROR If an error occurs in the command signal that
ADAS control unit transmits to ECM via CAN
communication
ADAS control unit
Revision: 2010 May2011 QX56

DAS
C1A35 ACCELERATOR PEDAL ACTUATORDAS-161
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A35 ACCELERATOR PEDAL ACTUATOR
DTC LogicINFOID:0000000006228104
DTC DETECTION LOGIC
NOTE:
If DTC “C1A35” is detected along with DTC “U1000”, first diagnose the DTC “U1000”. Refer to DAS-182,
"ADAS CONTROL UNIT : DTC Logic".
Diagnosis ProcedureINFOID:0000000006228105
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 “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 other than “C1A35” 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 3.
3.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
C1A35 (35) APA CIR
If the accelerator pedal actuator is malfunc-
tioning Accelerator pedal actuator
Revision: 2010 May2011 QX56