2011 INFINITI QX56 display

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
C1F05 ACCELERATOR PEDAL ACTUATOR POWER SUPPLY CIRCUIT
DAS-171
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1F05 ACCELERATOR PEDAL ACTU ATOR POWER SUPPLY CIRCUIT
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006228129
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 Readi ng” with CONSULT-III.
4. Check if the “C1F05” is detected as the current malfunction on the self-diagnosis results of “ICC/ADAS”.
Is
“C1F05” detected as the current malfunction?
YES >> Refer to DAS-171, "ADAS CONTROL UNIT : Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006228130
1.CHECK ADAS CONTROL UNIT SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected other than “C1F05” 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.CHECK ACCELERATOR PEDAL ACTU ATOR SELF-DIAGNOSIS RESULTS
Check if “C1F05” is detected in “Self Diagnostic Result” of “ACCELE PEDAL ACT”.
Is
“C1F05” detected?
YES >> Refer to DAS-171, "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:0000000006223596
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 Readi ng” with CONSULT-III.
DTC
(On board display) Trouble diagnosis name DTC detecting condition Possible causes
C1F05 (95) APA PWR SUPLY CIR The battery voltage sent to accelerator pedal
actuator remains less than 7.9 V or more than
19.3 V for 5 seconds  Harness, connector, or fuse
 Accelerator pedal actuator
DTC Trouble diagnosis name DTC detecting condition Possible causes
C1F05 APA PWR SUPLY CIR The battery voltage sent to accelerator pedal
actuator remains less than 7.9 V or more than
19.3 V for 5 seconds  Harness, connector, or fuse
 Accelerator pedal actuator
Revision: 2010 May2011 QX56

DAS-178
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U0401 ECM CAN 1
U0401 ECM CAN 1
DTC LogicINFOID:0000000006228137
DTC DETECTION LOGIC
NOTE:
If DTC “U0401” 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 “U0401” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U0401” detected as the current malfunction?
YES >> Refer to DAS-178, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228138
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “U1000” is detected ot her than “U0401” 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 ECM SELF-DIAGNOSIS RESULTS
Check if any DTC is detected in “S elf Diagnostic Result” of “ENGINE”.
Is any DTC detected?
YES >> Perform diagnosis on the detected DTC and repair or replace the malfunctioning parts. Refer to
EC-98, "
DTC Index".
NO >> Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
DTC
(On board
display) Trouble diagnosis name DTC detecting condition Possible causes
U0401 (120) ECM CAN CIR1 If ADAS control unit detects an error signal
that is received from ECM via CAN communi-
cation
ECM
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-184
< DTC/CIRCUIT DIAGNOSIS >[DCA]
U1010 CONTROL UNIT (CAN)
U1010 CONTROL UNIT (CAN)
ADAS CONTROL UNIT
ADAS CONTROL UNIT : DescriptionINFOID:0000000006228148
CAN controller controls the communication of CA
N communication signal and ITS communication signal, and
the error detection.
ADAS CONTROL UNIT : DTC LogicINFOID:0000000006228149
DTC DETECTION LOGIC
ADAS CONTROL UNIT : Diagnosis ProcedureINFOID:0000000006228150
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the DCA system ON.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “U1010” is detected as the current ma lfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“U1010” detected as the current malfunction?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> INSPECTION END
ACCELERATOR PEDAL ACTUATOR
ACCELERATOR PEDAL ACTUATOR : DescriptionINFOID:0000000006223625
CAN controller controls the communication of ITS communication signal and the error detection.
ACCELERATOR PEDAL ACTUATOR : DTC LogicINFOID:0000000006223626
DTC DETECTION LOGIC
ACCELERATOR PEDAL ACTUATOR : Diagnosis ProcedureINFOID:0000000006223627
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn the DCA system ON.
2. Perform “All DTC Reading” with CONSULT-III.
3. Check if the “U1010” is detected as the current malfunction in “Self Diagnostic Result” of “ACCELE
PEDAL ACT”.
Is
“U1010” detected as the current malfunction?
YES >> Replace the accelerator pedal actuator. Refer to DAS-213, "Exploded View".
NO >> INSPECTION END
DTC
(On board display) Trouble diagnosis name DTC detecting condition Possible causes
U1010 (110) CONTROL UNIT (CAN) If ADAS control unit detects malfunction by
CAN controller initial diagnosis ADAS control unit
DTC Trouble diagnosis name DTC detecting condition Possible causes
U1010 CONTROL UNIT (CAN) If accelerator pedal actuator detects malfunc-
tion by CAN controller initial diagnosis Accelerator pedal actuator
Revision: 2010 May2011 QX56

DAS
DISTANCE CONTROL ASSIST SYSTEM SYMPTOMSDAS-197
< SYMPTOM DIAGNOSIS > [DCA]
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SYMPTOM DIAGNOSIS
DISTANCE CONTROL A SSIST SYSTEM SYMPTOMS
Symptom TableINFOID:0000000006223650
Symptoms Reference page
Operation Switch does not turn ON
Refer to DAS-198, "
Description".
Switch does not turn OFF
DCA system setting cannot be turned ON on the
navigation screen Refer to DAS-200, "
Description".
DCA system setting cannot be turned OFF on the
navigation screen
DCA system not activated (switch is ON) Refer to DAS-201, "
Description".
Display/Chime Information display is not illuminated (vehicle
ahead indicator)
Refer to
MWI-29, "
On Board Diagnosis Function".
Chime does not sound Refer to DAS-203, "
Description".
Control No force generated for putting back the accelera-
tor pedal Refer to
DAS-205, "
Description".
Detection of lead
vehicle Frequently cannot detect the vehicle ahead
Refer to DAS-206, "
Description".
Detection zone is short
System misidentifies a vehicle even though there
is no vehicle ahead  Adjust laser beam aiming: Refer to
CCS-72, "
Descrip-
tion".
 Perform action test. Refer to DAS-128, "
Description".
System misidentifies a vehicle in the next lane
System does not detect the vehicle ahead at all Refer to DAS-208, "
Description".
Revision: 2010 May2011 QX56

DAS
DCA SYSTEM NOT ACTIVATED (SWITCH IS ON)DAS-201
< SYMPTOM DIAGNOSIS > [DCA]
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DCA SYSTEM NOT ACTIVA TED (SWITCH IS ON)
DescriptionINFOID:0000000006223655
The dynamic driver assistance switch can be tu rned ON/OFF, but the DCA system does not operate.
NOTE:
Never start the operation under the following conditions. No operation condition
 When the brake pedal depressed
 When the ICC system is set
 When the system judges that the vehicle co mes to a standstill by the system control
 When the vehicle ahead is not detected Operation cancellation condition
 When the dynamic driver assistance switch is turned to OFF
 When the system malfunction occurs
 When ABS or VDC (including the TCS) operates
 When the VDC is turned OFF
 When driving into a strong light (i.e., sunlight)
 When the ICC sensor body window is dirty and the measurement of the distance between the vehicles
becomes difficult
 When ABS warning lamp is ON
 When the SNOW mode switch is turned ON
 When the 4WD shift switch is not AUTO position
Diagnosis ProcedureINFOID:0000000006223656
1.CHECK CAUSE OF AUTOMATIC CANCELLATION
Check if there is any cancellation cause in the “CAUSE OF AUTO-CANCEL” on “WORK SUPPORT” of “ICC/
ADAS” with CONSULT-III.
Is it displayed?
Not displayed>>GO TO 2.
“OPE SW VOLT CIRC”>>Refer to DAS-138, "
DTC Logic".
“VHCL SPD UNMATCH”>>Refer to DAS-131, "
DTC Logic".
“IGN LOW VOLT”>>Refer to DAS-130, "
DTC Logic".
“CAN COMM ERROR”>>Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic".
“ICC SENSOR CAN COMM ERR”>>Refer to DAS-177, "
DTC Logic".
“ABS/TCS/VDC CIRC”>>Refer to DAS-133, "
DTC Logic".
“APA HI TEMP”>>Refer to DAS-170, "
DTC Logic".
“ECD CIRCUIT”>>Refer to DAS-156, "
DTC Logic".
2.PERFORM ALL OF THE SELF-DIAGNOSIS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in self-d iagnosis results of “ICC/ADAS”. Refer to DAS-100, "
DTC Index".
Is any DTC detected?
YES >> GO TO 3.
NO >> GO TO 4.
3.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace malfunctioning parts i dentified by the self-diagnosis result.
>> GO TO 6.
4.CHECK EACH SWITCH AND VEHICLE SPEED SIGNAL
1. Start the engine.
2. Check that the following items operate norma lly in “DATA MONITOR” of “ICC/ADAS”.
- “VHCL SPEED SE”
- “BRAKE SW”
- “DYNA ASIST SW”
Is there a malfunctioning item?
Revision: 2010 May2011 QX56

DAS-208
< SYMPTOM DIAGNOSIS >[DCA]
THE SYSTEM DOES NOT DETECT
THE VEHICLE AHEAD AT ALL
THE SYSTEM DOES NOT DETECT THE VEHICLE AHEAD AT ALL
DescriptionINFOID:0000000006223663
When DCA system is active, the DCA system does not perform any control even through there is a vehicle
ahead.
Diagnosis ProcedureINFOID:0000000006223664
1.CHECK INFORMATION DISPLAY
1. Start the self-diagnosis mode of combination meter. Refer to MWI-29, "
On Board Diagnosis Function".
2. Check that the segment of informat ion display is displayed normally.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the combination meter.
2.VISUAL CHECK (1)
Check ICC sensor body window for contamination and/or foreign materials.
Do foreign materials adhere?
YES >> GO TO 3.
NO >> GO TO 4.
3.WIPE OUT DIRT AND FOREIGN MATERIALS
Wipe out the contamination and/or foreign materials from the ICC sensor body window.
>> GO TO 8.
4.VISUAL CHECK (2)
Check ICC sensor body window for cracks and/or scratches.
Are there cracks?
YES >> GO TO 6.
NO >> GO TO 5.
5.LASER BEAM AIMING ADJUSTMENT
1. Adjust the laser beam aiming. Refer to CCS-72, "
Description".
2. Perform action test. Refer to DAS-128, "
Description".
3. Check that the vehicle ahead detection performance improves.
Does it improve?
YES >> INSPECTION END
NO >> GO TO 6.
6.REPLACE ICC SENSOR
1. Replace the ICC sensor. Refer to DAS-212, "
Exploded View".
2. Adjust the laser beam aiming. Refer to CCS-72, "
Description".
3. Perform action test. Refer to DAS-128, "
Description".
4. Check that the vehicle ahead detection performance improves.
>> GO TO 7.
7.REPLACE ADAS CONTROL UNIT
Replace the ADAS control unit. Refer to DAS-63, "
Removal and Installation".
>> GO TO 8.
8.CHECK DCA SYSTEM
1. Erase “self-diagnosis result”, and then perform “All DTC Reading” again after performing the action test.
(Refer to DAS-128, "
Description" for action test.)
Revision: 2010 May2011 QX56