2011 INFINITI QX56 display

DAS
ICC SENSORDAS-105
< ECU DIAGNOSIS INFORMATION > [DCA]
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Fail-safeINFOID:0000000006228057
If a malfunction occurs in the ICC sensor, ADAS cont rol unit cancels control, sounds a beep, and turns ON the
ICC system warning lamp in the combination meter.
DTC Inspection Priority ChartINFOID:0000000006228058
If multiple DTCs are detected simultaneously, che ck them one by one depending on the following DTC inspec-
tion priority chart.
DTC IndexINFOID:0000000006228059
NOTE:
 The details of time display are as per the following.
- 0: The malfunctions that are detected now
CAN communication system (U1000, U1010)
- 1 - 39: It increases like 0 → 1 → 2 ··· 38 → 39 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunc tion is detected again in the process.
- If it is over 39, it is fixed to 39 unt il the self-diagnosis results are erased.
Other than CAN communication s ystem (Other than U1000, U1010)
- 1 - 49: It increases like 0 → 1 → 2 ··· 38 → 49 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunc tion is detected again in the process.
- If it is over 49, it is fixed to 49 unt il the self-diagnosis results are erased.
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(W/G)
GroundIgnition power supply Input Ignition switch ON Battery voltage
3
(L) ITS communication-H — — —
4
(B) Ground — Ignition switch ON 0 V
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(Y) ITS communication-L — — —
Priority Detected items (DTC)
1  U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2  C1A50: ADAS MALFUNCTION
3  C1A01: POWER SUPPLY CIR
 C1A02: POWER SUPPLY CIR 2
 C1A12: LASER BEAM OFFCNTR
 C1A16: RADAR STAIN
 C1A18: LASER AIMING INCMP
 C1A21: UNIT HIGH TEMP
 C1A39: STRG SEN CIR
 U0104: ADAS CAN CIR1
 U0121: VDC CAN CIR2
 U0126: STRG SEN CAN CIR1
 U0405: ADAS CAN CIR2
 U0415: VDC CAN CIR1
 U0428: STRG SEN CAN CIR2
4  C1A00: CONTROL UNIT
Revision: 2010 May2011 QX56

DAS-106
< ECU DIAGNOSIS INFORMATION >[DCA]
ICC SENSOR
×
: Applicable
DTC
CONSULT-III display
ICC system warning lamp
Fail-safe function Reference
CONSULT-III
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode
Distance Control Assist (DCA)
Forward Collision Warning (FCW) Intelligent Brake Assist (IBA)
Brake Assist (with preview function)
C1A00 CONTROL UNIT ON ××××××CCS-83
C1A01 POWER SUPPLY CIR ON ××××××CCS-85
C1A02 POWER SUPPLY CIR2 ON ××××××CCS-85
C1A12 LASER BEAM OFFCNTR ON ×××××CCS-96
C1A16 RADAR STAIN ON ×××××CCS-106
C1A18 LASER AIMING INCMP ON ×××××CCS-109
C1A21 UNIT HIGH TEMP ON ××××××CCS-111
C1A39 STRG SEN CIR ON ××××××CCS-124
C1A50 ADAS MALFUNCTION ON ××××××CCS-128
U0104 ADAS CAN CIR1 ON ××××××CCS-132
U0121 VDC CAN CIR2 ON ××××××CCS-133
U0126 STRG SEN CAN CIR1 ON ××××××CCS-135
U0405 ADAS CAN CIR2 ON ××××××CCS-140
U0415 VDC CAN CIR1 ON ××××××CCS-141
U0428 STRG SEN CAN CIR2 ON ××××××CCS-143
U1000 CAN COMM CIRCUIT ON ××××××CCS-145
U1010 CONTROL UNIT (CAN) ON ××××××CCS-147
Revision: 2010 May2011 QX56

DAS
ACCELERATOR PEDAL ACTUATORDAS-107
< ECU DIAGNOSIS INFORMATION > [DCA]
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ACCELERATOR PEDAL ACTUATOR
Reference ValueINFOID:0000000006223518
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item Condition Value/Status
TGT FBK FRC Drive the vehicle and
operate the DCA sys-
temWhen the ADAS control unit is control-
ling the accelerator pedal actuator
It changes with the demand from
the ADAS control unit
TGT MOT POSI NOTE:
The item is indicated, but not used. —
ACT MOT POSI Engine running Depress accelerator pedal It changes according to the de-
pressed amount of accelerator
pedal
AP OPEN Engine running Depress accelerator pedal It changes according to the de-
pressed amount of accelerator pedal
APA TEMP Engine running Display the accelerator pedal ac-
tuator integrated motor tempera- ture
APA CURRENT Drive the vehicle and
operate the DCA sys-
temWhen the ADAS control unit is control-
ling the accelerator pedal actuator Display the accelerator pedal ac-
tuator motor operation consump-
tion current
APA PWR Ignition switch ON Battery voltage
APA OPE STATS Engine running When the accelerator pedal actuator
control is permitted
On
When the accelerator pedal actuator
control is invalid Off
APA STATS Engine running When the accelerator pedal actuator is
normal
Ready
When the accelerator pedal actuator is
temporarily malfunctioning TP NG
When the accelerator pedal actuator is
malfunctioning NG
During the accelerator pedal actuator
operation preparations Init
JSOIA0231ZZ
Revision: 2010 May2011 QX56

DAS-108
< ECU DIAGNOSIS INFORMATION >[DCA]
ACCELERATOR PEDAL ACTUATOR
DTC Inspection Priority Chart
INFOID:0000000006223519
If multiple DTCs are detected simultaneously, chec k them one by one depending on the following DTC inspec-
tion priority chart.
DTC IndexINFOID:0000000006223520
NOTE:
 The details of time display are as per the following.
- CRNT: A malfunction is detected now
- PAST: A malfunction was detected in the past
 IGN counter is displayed in FFD (Freeze Frame Data).
- 0: The malfunctions that are detected now
- 1 - 39: It increases like 0 → 1 → 2 ··· 38 → 39 after returning to the normal condition whenever the ignition
switch OFF → ON. It returns to 0 when a malfunction is detected again in the process.
- If it is over 39, it is fixed to 39 until the self-diagnosis results are erased.
× : Applicable
Te r m i n a l N o .
(Wire color) Description
ConditionVa l u e
(Approx.)
+ – Signal name Input/
Output
1
(B/O)
Ground Battery power supply Input Ignition switch OFF Battery voltage
2
(B) Ground — Ignition switch ON 0 V
3
(W/G) Ignition power supply Input Ignition switch ON Battery voltage
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(Y) ITS communication-L — — —
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(L) ITS communication-H — — —
Priority Detected items (DTC)
1  U1000: CAN COMM CIRCUIT
 U1010: CONTROL UNIT (CAN)
2  C1F02: APA C/U MALF
3  C1F01: APA MOTOR MALF
 C1F03: APA HI TEMP
 C1F05: APA PWR SUPLY CIR
 C1F06: CAN CIR2
 C1F07: CAN CIR1
CONSULT-III display ICC system warnin
g lamp Fail-safe function Reference
C1F01: APA MOTOR MALF ON ×DAS-166
C1F02: APA C/U MALF ON ×DAS-168
C1F03: APA HI TEMP — — DAS-170
C1F05: APA PWR SUPLY CIR ON×DAS-171
C1F06: CAN CIR2 ON ×DAS-173
C1F07: CAN CIR1 ON ×DAS-174
U1000: CAN COMM CIRCUIT ON ×DAS-182
U1010: CONTROL UNIT (CAN) ON ×DAS-184
Revision: 2010 May2011 QX56

DAS-128
< BASIC INSPECTION >[DCA]
ACTION TEST
ACTION TEST
DescriptionINFOID:0000000006223527
Always perform the DCA system action te
st to check that the system operates normally after replacing the ICC
sensor, replacing the accelerator pedal assemb ly, or repairing any DCA system malfunction.
CAUTION:
Perform the DCA system action test after checking that the ICC system operates normally because the
DCA system shares components with the ICC system.
Work ProcedureINFOID:0000000006223528
NOTE:
When the ICC system is set, the information display changes to the ICC system display.
1.ICC SYSTEM ACTION TEST
Perform the ICC system action test. Refer to CCS-77, "
Description".
>> GO TO 2.
2.CHECK DCA SYST EM SETTING
1. Start the engine.
2. After starting the engine wait for 30 seconds or more.
3. Check that the DCA syst em setting can be enabled/disabled on the navigation screen.
4. Turn OFF the ignition switch and wait for 5 seconds or more.
5. Check that the previous setting is saved when the engine starts again.
>> GO TO 3.
3.CHECK DYNAMIC DRIVER ASSISTANCE SWITCH
1. Start the engine.
2. After starting the engine wait for 30 seconds or more.
3. Enable the setting of the DCA system on the navigation screen.
4. Press the dynamic driver assistance switch (1).
5. Check that the DCA system switch indicator (2) on the informa- tion display illuminates.
6. Check that the DCA system switch indicator turns OFF when the system is turned OFF by pressing the dynamic driver assistance
switch.
7. Check that the DCA system switch indicator turns OFF when the engine starts again.
NOTE:
The DCA system switch indicato r does not illuminate even when the
dynamic driver assistance switch is turned ON within approximately
5 seconds after starting the engine.
If the accelerator pedal assembly is not replaced>>INSPECTION END
If the accelerator pedal assembly is replaced>>GO TO 4.
4.CHECK DCA SYSTEM OPERATION
Check that the accelerator pedal actuator operates by the “Active Test” items “ACCELERATOR PEDAL
ACTUATOR TEST1” and “ACCELERATOR PEDAL ACTU ATOR TEST2” of “ACCELE PEDAL ACT” with
CONSULT-III.
>> INSPECTION END
JSOIA0275ZZ
Revision: 2010 May2011 QX56

DAS
C1A03 VEHICLE SPEED SENSORDAS-131
< DTC/CIRCUIT DIAGNOSIS > [DCA]
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C1A03 VEHICLE SPEED SENSOR
DTC LogicINFOID:0000000006228063
DTC DETECTION LOGIC
NOTE:
If DTC “C1A03” is detected along with DTC “U1000” or “C1A04”, first diagnose the DTC “U1000” or “C1A04”.
 Refer to DAS-182, "
ADAS CONTROL UNIT : DTC Logic" for DTC “U1000”.
 Refer to DAS-133, "
DTC Logic" for DTC “C1A04”.
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Start the engine.
2. Turn the DCA system ON.
3. Drive the vehicle at 30 km/h (19 MPH) or more. CAUTION:
Always drive safely.
4. Stop the vehicle.
5. Perform “All DTC Readi ng” with CONSULT-III.
6. Check if the “C1A03” is detected as the current malfunction in “Self Diagnostic Result” of “ICC/ADAS”.
Is
“C1A03” detected as the current malfunction?
YES >> Refer to DAS-131, "Diagnosis Procedure".
NO >> Refer to GI-40, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000006228064
1.CHECK SELF-DIAGNOSIS RESULTS
Check if “C1A04” or “U1000” is detected other than “C1A03” 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 DATA MONITOR
1. Start the engine.
2. Drive the vehicle.
3. Check that the value of “VHCL SPD AT” is almost the same as the value of “VHCL SPEED SE” in “DATA
MONITOR” of “ICC/ADAS”.
CAUTION:
Be careful of the vehicle speed.
Is the inspection result normal?
YES >> Replace the ADAS control unit. Refer to DAS-63, "Removal and Installation".
NO >> GO TO 3.
3.CHECK TCM SELF-DIAGNOSIS RESULTS
1. Perform “All DTC Reading”.
2. Check if any DTC is detected in “Sel f Diagnostic Result” of “TRANSMISSION”.
DTC
(On board
display) Trouble diagnosis
name DTC detecting condition Possible causes
C1A03 (3) VHCL SPEED SE
CIRC If the vehicle speed signal (wheel speed) from
ABS actuator and electric unit (control unit) and
the A/T vehicle speed sensor signal (output
shaft revolution signal) from TCM, received by
the ADAS control unit via CAN communication,
are inconsistent  Wheel speed sensor
 ABS actuator and electric unit (control
unit)
 Vehicle speed sensor A/T (output speed sensor)
TCM
 ADAS control unit
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