turn signal INFINITI QX56 2011 Factory Service Manual

DAS
SYSTEMDAS-71
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Operation Condition
ADAS control unit performs the control when the following conditions are satisfied.
 When the DCA system setting on the navigation screen is ON.
 When the dynamic driver assistance switch is turned to ON.
 When the brake pedal is not depressed.
 When the vehicle speed is above approximately 5 km/h (3 MPH).
 When the vehicle ahead is detected.
 When the ICC system is not set.
No Operation Condition
The ADAS control unit is not operat e when the system is under any condi tions of the 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
The ADAS control unit cancels the operation when the syst em is under any conditions of the operation cancel-
lation 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 the SNOW mode switch is turned ON.
 When the 4WD shift switch is turned to not AUTO position.
 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.
Operation At The Driver Operation
Give priority to the driver operation in the following situation.
When vehicle approaches a vehicle ahead If the driver is not depressing the acceler-
ator pedal, the system activates the
brakes to decelerate smoothly as neces-
sary
If the driver is depressing the accelerator
pedal, the system moves the accelerator
pedal upward to assist the driver to re-
lease the accelerator pedal
When brake operation by driver is required The system alerts the driver by a warning
chime and blinking the vehicle ahead de-
tection indicator. If the driver is depressing
the accelerator pedal after the warning,
the system moves the accelerator pedal
upward to assist the driver to switch to the
brake pedal
Deceleration control It transmits the brake fluid
pressure control signal to the ABS actuator and electric unit (control unit) via
CAN communication and performs the brake control
Accelerator pedal actuation
control It transmits the accelerator pedal feedback force control signal to the accelerator pedal actuator via ITS
communication and controls the accelerator pedal in the upward directionJSOIA0222ZZ
JSOIA0094ZZ
JPOIA0170GB
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-79
< SYSTEM DESCRIPTION > [DCA]
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 It displays for up to 5 minutes and then stops.
 If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent
one is displayed first.
WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START
If the on board self-diagnosis does not start, check the following items.
HOW TO ERASE ON BOARD SELF-DIAGNOSIS
1. Turn the ignition switch OFF.
2. Start the engine, and then start the on board self-diagnosis.
3. Press the CANCEL switch 5 times, and then press the DIS-
TANCE switch 5 times under the condition that the on board
self-diagnosis starts.
NOTE:
 Complete the operation within 10 seconds after pressing the
CANCEL switch first.
 If the operation is not completed within 10 seconds, repeat the procedure from step 1.
4. DTC 55 is displayed after erasing. NOTE:
DTCs for existing malfunction can not be erased.
5. Turn ignition switch OFF, and finish the diagnosis.
CONSULT-III Function (ICC/ADAS)INFOID:0000000006223507
APPLICATION ITEMS
CONSULT-III performs the following functions via CAN communication using ADAS control unit.
WORK SUPPORT
Assumed abnormal part Inspection item
Information display Combination meter malfunction Check that the self-diagnosis function of the combina-
tion meter operates. Refer to
MWI-29, "
On Board Diag-
nosis Function"
ICC steering switch malfunction
Perform the inspection for DTC“C1A06”. Refer to CCS-
94, "Diagnosis Procedure"Harness malfunction between ICC steering switch and ECM
ECM malfunction
ADAS control unit malfunction  Check power supply and ground circuit of ADAS con-
trol unit. Refer to DAS-62, "
Diagnosis Procedure".
 Perform SELF-DIAGNOSIS for “ICC/ADAS”with
CONSULT-III, and then check the malfunctioning
parts. Refer to DAS-38, "
DTC Index".
PKIB8373E
Diagnosis mode Description
Work Support Displays causes of automatic system cancellation occurred during system control
Self Diagnostic Result Displays the name of a malfunctioning system stored in the ADAS control unit
Data Monitor Displays ADAS control unit input/output data in real time
Active Test Enables an operational check of a load by transmitting a driving signal from the ADAS control unit to
the load
Ecu Identification Displays ADAS control unit part number
CAN Diag Support Monitor Displays a reception/transmission state of CAN communication and ITS communication
Revision: 2010 May2011 QX56

DAS-80
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
NOTE:
 Causes of the maximum five cancella
tions (system cancel) are displayed.
 The displayed cancellation causes display the number of the ignition switch ON/OFF up to 254. It is fixed to
254 if it is over 254. It returns to 0 when the same cancellation cause is detected again.
Display Items for The Cause of Automatic Cancellation 1
Work support items Description
CAUSE OF AUTO-CANCEL 1 Displays causes of automatic system cancellation occurred during control of the following sys-
tems
 Vehicle-to-vehicle distance control mode
 Conventional (fixed speed) cruise control mode
 Distance Control Assist (DCA)
CAUSE OF AUTO-CANCEL 2 Displays causes of automatic system cancellation occurred during control of the Lane Depar-
ture Prevention (LDP) system
Cause of cancellation
Vehicle-to-vehicle distance control mode
Conventional (fixed speed) cruise control mode Distance Control Assist
Description
OPERATING WIPER ×The wiper operates at HI (it includes when the wiper is operated at
HI with the wiper switch AUTO position)
OPERATING ABS ××ABS function was operated
OPERATING TCS ×××TCS function was operated
OPERATING VDC ×××VDC function was operated
ECM CIRCUIT ××ECM did not permit ICC operation
OPE SW VOLT CIRC ×××The ICC steering switch input voltage is not within standard range
LASER SUNBEAM ××Intense light such as sunlight entered ICC sensor light sensing part
LASER TEMP ××Temperature around ICC sensor became low
SNOW MODE SW ××SNOW mode switch was pressed
OP SW DOUBLE
TOUCH ××
ICC steering switches were pressed at the same time
VHCL SPD DOWN ×××Vehicle speed lower than the speed as follows
 Vehicle-to-vehicle distance control mode is 24 km/h (15 MPH)
 Conventional (fixed speed) cruise control mode is 32 km/h (20
MPH)
WHL SPD ELEC NOISE ×××Wheel speed sensor signal caught electromagnetic noise
VDC/TCS OFF SW ××VDC OFF switch was pressed
VHCL SPD UNMATCH ×××Wheel speed became different from A/T vehicle speed
TIRE SLIP ××Wheel slipped
IGN LOW VOLT ×××Decrease in ADAS control unit IGN voltage
PARKING BRAKE ON ××The parking brake is operating
WHEEL SPD UNMATCH ×××The wheel speeds of 4 wheels are out of the specified values
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-81
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Display Items for The Cause of Automatic Cancellation 2
SELF DIAGNOSTIC RESULT
Refer to DAS-38, "DTC Index".
DATA MONITOR
INCHING LOST ×A vehicle ahead is not detected during the following driving when
the vehicle speed is approximately 24 km/h (15 MPH) or less
CAN COMM ERROR ×××ADAS control unit received an abnormal signal with CAN commu-
nication
ABS/TCS/VDC CIRC ×××An abnormal condition occurs in VDC/TCS/ABS system
ECD CIRCUIT ×××An abnormal condition occurs in ECD system
ASCD VHCL SPD DTAC ×Vehicle speed is detached from set vehicle speed
ASCD DOUBLE COMD ×Cancel switch and operation switch are detected simultaneously
APA HI TEMP ×The accelerator pedal actuator integrated motor temperature is
high
ICC SENSOR CAN
COMM ERR ××Communication error between ADAS control unit and the ICC sen-
sor
4WD LOCK MODE ×××Shifting of the 4WD shift switch to 4H or 4L
ABS WARNING LAMP ××ABS warning lamp ON
NO RECORD ××× —
Cause of cancellation Description
OPE VDC/TCS/ABS 1 The activation of VDC, TCS, or ABS during LDP system control
Vehicle dynamics Vehicle behavior exceeds specified value
Steering speed Steering speed was more than the specified value in evasive direction
End by yaw angle Yaw angle was the end of LDP control
Departure yaw large Detected more than the specified value of yaw angle in departure direction
ICC WARNING Target approach warning of ICC system, IBA system or FCW system was activated
CURVATURE Road curve was more than the specified value
Steering angle large Steering angle was more than the specified value
Brake is operated Brake pedal was operated
IGN LOW VOLT Decrease in ADAS control unit IGN voltage
Lateral offset Distance of vehicle and lane was detached in lateral direction more than the specified value
Lane marker lost Lane camera unit lost the trace of lane marker
Lane marker unclear Detected lane marker was unclear
Yaw acceleration Detected yawing speed was more than the specified value
Deceleration large Deceleration in a longitudinal direction was more than the specified value
Accel is operated Accelerator pedal was depressed
Departure steering Steering wheel was steered more than the specified value in departure direction
Evasive steering Steering wheel was steered more than the specified value in the evasive direction
R range Selector lever was operated to R range
Parking brake drift Rear wheels lock was detected
Not operating condition Did not meet the operating condition (vehicle speed, turn signal operation, etc)
SNOW MODE SW SNOW mo de switch was pressed
VDC OFF SW VDC OFF switch was pressed
OPE VDC/ABS 2 The activation of VDC or ABS duri ng a standby time of LDP system control
4WD LOCK MODE Shifting of the 4WD shift switch to 4H or 4L
NO RECORD —
Revision: 2010 May2011 QX56

DAS-84
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
LDP SYSTEM ON
[On/Off]×
Indicates [On/Off] status of LDP system
WARN REQ
[On/Off] ×
Indicates an ADAS control unit judged warning state (ON/OFF) of LDP system
READY signal
[On/Off] ×
Indicates LDP system settings
Camera lost
[Detect/Deviate/Both] ××Indicates a lane marker detection state judged from a lane marker detection signal
read by the ADAS control unit via ITS communication
(Lane camera unit transmits a lane marker signal via ITS communication)
Shift position
[Off, P, R, N, D, M/T1 -
7] ××
Indicates shift position read from ADAS control unit through CAN communication
(TCM transmits shift position signal through CAN communication)
Turn signal
[OFF/LH/RH/LH&RH] ××Indicates turn signal operation status read from ADAS control unit through CAN
communication (BCM transmits turn indicator signal through CAN communica-
tion)
SIDE G
[G] ××Indicates lateral G acting on the vehicle. This lateral G is judged from a side G
sensor signal read by ADAS control unit via CAN communication
(The ABS actuator and electric unit (control unit) transmits a side G sensor signal
via CAN communication)
STATUS signal
[Stnby/Warn/Cancl/
Off] ×
Indicates a control state of LDP system
Lane unclear
[On/Off] ××Indicates an ON/OFF state of the lane marker. The ON/OFF state is judged from
a detected lane condition signal read by the ADAS control unit via ITS communi-
cation
(The lane camera unit transmits a detected lane condition signal via ITS commu-
nication)
FUNC ITEM
[FUNC1] ×× × × Indicates systems which can be set to ON/OFF by selecting “Driver Assistance”
⇒
“Dynamic Assistance Settings” of the navigation system
FUNC1: Distance Control Assist (DCA), Lane Departure Prevention (LDP)
FUNC ITEM (NV-ICC)
[Off] ×× × × NOTE:
The item is displayed, but it is not monitored
FUNC ITEM (NV-
DCA)
[Off] ×× × ×
NOTE:
The item is displayed, but it is not monitored
DCA SELECT
[On/Off] ×× × × Indicates an ON/OFF state of the DCA system. The DCA system can be set to
ON/OFF by selecting
“Driver Assistance” ⇒ “Dynamic Assistance Settings” of the
navigation system
LDP SELECT
[On/Off] ×× × × Indicates an ON/OFF state of LDP system. LDP system can be set to ON/OFF by
selecting “Driver Assistance”
⇒ “Dynamic Assistance Settings” of the navigation
system
BSI SELECT
[On/Off] ×× × × NOTE:
The item is displayed, but it is not monitored
NAVI ICC SELECT
[Off] ×× × × NOTE:
The item is displayed, but it is not monitored
NAVI DCA SELECT
[Off] ×× × ×
NOTE:
The item is displayed, but it is not monitored
SYS SELECTABILITY
[On/Off] ×× × × Indicates the availability of ON/OFF switching for “Driver Assistance” items re-
ceived from the AV control unit via CAN communication
WARN SYS SW
[On/Off] ×× × ×
Indicates [On/Off] status of warning systems switch
BSW/BSI WARN LMP
[On/Off] ×
Indicates [On/Off] status of BSW warning lamp output
Monitored item
[Unit]
ALL SIG
(ICC)
MAIN SIG (ICC)
MAIN SIG
(LDW/LDP)
MAIN SIG
(BSW/BSI)
Description
Revision: 2010 May2011 QX56

DAS-86
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
STOP LAMP
ICC BUZZER
BRAKE ACTUATOR
NOTE:
The test can be performed only when the engine is running.
NOTE:
The test is finished in 10 seconds after starting
Te s t i t e mOper-
ation Description  MAIN switch indicator
 ICC system warning lamp
 IBA OFF indicator lamp
METER LAMP Off
Stops sending the following signals to exit from the test
 Meter display signal
 ICC warning lamp signal
 IBA OFF indicator lamp signal OFF
On Transmits the following signals to the combination meter via
CAN communication
 Meter display signal
 ICC warning lamp signal
 IBA OFF indicator lamp signal
ON
Te s t i t e m
Oper-
ation Description Stop lamp
STOP LAMP Off
Stops transmitting the ICC brake hold relay drive signal be-
low to end the test OFF
On Transmits the ICC brake hold relay drive signal ON
Test item Operation Description ICC warning chime operation
sound
ICC BUZZER MODE1
Transmits the buzzer output signals to the combination
meter via CAN communication Intermittent beep sound
Test start Starts the tests of “MODE1” — Reset Stops transmitting the buzzer output signal below to end
the test —
End Returns to the “SELECT TEST ITEM” screen —
Test item Operation Description “PRESS SENS” value
BRAKE ACTUATOR MODE1
Transmits the brake fluid pressure control signal to the
ABS actuator and electric unit (control unit) via CAN
communication 10 bar
MODE2 20 bar
MODE3 30 bar
Test start Starts the tests of “MODE1”, “MODE2” and “MODE3” —
Reset Stops transmitting the brake fluid pressure control signal
below to end the test —
End Returns to the “SELECT TEST ITEM” screen —
PKIB1767J
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-87
< SYSTEM DESCRIPTION > [DCA]
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Active Pedal
CAUTION:
 Shift the selector lever to “P” po
sition, and then perform the test.
 Never depress the accelerator pedal excessively. (T he engine speed may rise unexpectedly when
finishing the test.)
NOTE:
 Depress the accelerator pedal to check when performing the test.
 The test can be performed only when the engine is running.
NOTE:
The test is finished in 10 seconds after starting
DCA INDICATOR
NOTE:
The test can be performed only when the engine is running.
LDP BUZZER
WARNING SYSTEM IND
Test item Operation Description Accelerator pedal operation
Active Pedal MODE1
Transmit the accelerator pedal feedback force control signal
to the accelerator pedal actuator via ITS communication. Constant with a force of 25 N
for 8 seconds
MODE2 Constant with a force of 15 N
for 8 seconds
MODE3 Change up to a force of 25 N for
8 seconds
MODE4 Change up to a force of 15 N for
8 seconds
Test start Starts the tests of “MODE1”, “MODE2”, “MODE3” and
“MODE4” —
Reset Stops transmitting the accelerator pedal feedback force
control signal below to end the test.
—
End Returns to the “SELECT TEST ITEM” screen —
JPOIA0061GB
Te s t i t e m Opera-
tion Description DCA system switch indicator
DCA INDICATOR Off
Stops transmitting the DCA system switch indicator signal be-
low to end the test
—
On Transmits the DCA system switch indicator signal to the com-
bination meter via CAN communication ON
Te s t i t e m
Opera-
tion Description Warning buzzer
LDP BUZZER Off
Stops transmitting the warning buzzer signal below to end the
test
—
On Transmits the warning buzzer signal to the warning buzzer ON
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ACCELERATOR PEDAL ACTUATOR)
DAS-91
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DIAGNOSIS SYSTEM (ACCELER ATOR PEDAL ACTUATOR)
CONSULT-III Function (ACCELERATOR PEDAL ACT)INFOID:0000000006223509
DESCRIPTION
CONSULT-III performs the following functions via CAN communication with ADAS control unit and the com-
munication with accelerator pedal actuator.
SELF DIAGNOSTIC RESULT
Self Diagnostic Result
Refer to DAS-108, "DTC Index".
FFD (Freeze Frame Data)
The accelerator pedal actuator records the fo llowing data when the malfunction is detected.
NOTE:
 The number is 0 when is detected now.
 The number increases like 1 → 2 ··· 38 → 39 after returning to the normal condition whenever IGN OFF →
ON.
 The number is fixed to 39 until the self-di agnosis results are erased if it is over 39.
DATA MONITOR
Test mode Function
Self Diagnostic Result  Displays malfunctioning system memorized in accelerator pedal actuator
 Displays the Freeze Frame Data when the malfunction is detected
DATA MONITOR Displays real-time input/output data of accelerator pedal actuator
ACTIVE TEST Enables operation check of electrical loads by sending driving signal to them
ECU Identification Displays accelerator pedal actuator parts number
CAN Diag Support Monitor The results of transmit/receive diagnosis of ITS communication can be read
Freeze Frame Data item [Unit] Description
TGT FBK FRC
[N] It displays the target accelerator pedal actuation force that the accelerator pedal actuator read out
from the accelerator pedal feedback force control signal received via ITS communication at the time
when the malfunction is detected
TGT MOT POSI
[%] It displays the target motor position that the accelerator pedal actuator read out from the accelerator
pedal feedback force control signal received via ITS communication at the time when the malfunction
is detected
ACT MOT POSI
[%] It displays the integrated motor position that the accelerator pedal actuator read out at the time when
the malfunction is detected
AP OPEN
[%] It displays the accelerator pedal position signal that the accelerator pedal actuator read out via ITS
communication at the time when the malfunction is detected
APA TEMP
[ ° C] It displays the integrated motor temperature that the accelerator pedal actuator read out at the time
when the malfunction is detected
APA CURRENT
[A] It displays the integrated motor consumption current that the accelerator pedal actuator read out at
the time when the malfunction is detected
APA PWR
[V] It displays the power supply voltage that the accelerator pedal actuator read out at the time when the
malfunction is detected
APA OPE STATS
[On/Off] It displays the activation permission status of accelerator pedal actuator at the time when the mal-
function is detected
APA STATS
[READY/NG/TP NG/INIT] It displays the condition of accelerator pedal actuator at the time when the malfunction is detected
IGN Counter
NoteIt displays number of ignition switch OFF → ON after the malfunction is detected
Revision: 2010 May2011 QX56

DAS-94
< ECU DIAGNOSIS INFORMATION >[DCA]
ADAS CONTROL UNIT
VHCL SPEED SE While driving Displays the ve-
hicle speed cal-
culated by
ADAS control unit
SET VHCL SPD While driving When vehicle speed is set Displays the set
vehicle speed
BUZZER O/P Engine running When the buzzer of the following system operates
 Vehicle-to-vehicle distance control mode
 DCA system
 FCW system
 IBA system
On
When the buzzer of the following system not operates
 Vehicle-to-vehicle distance control mode
 DCA system
 FCW system
 IBA system Off
THRTL SENSOR NOTE:
The item is indicated, but not monitored
0.0
ENGINE RPM Engine running Equivalent to ta-
chometer read- ing
WIPER SW Ignition switch ON Wiper not operating Off
Wiper LO operation Low
Wiper HI operation High
YAW R AT E NOTE:
The item is indicated, but not monitored
0.0
BA WARNING Engine running IBA OFF indicator lamp ON
 When IBA system is malfunctioning
 When IBA system is turned to OFF
On
IBA OFF indicator lamp OFF
 When IBA system is normal
 When IBA system is turned to ON Off
STP LMP DRIVE Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When ICC brake hold relay is activated On
When ICC brake hold relay is not activated Off
D RANGE SW Engine running When the selector lever is in “D” position or manual
mode
On
When the selector lever is in any position other than “D”
or manual mode Off
NP RANGE SW Engine running When the selector lever is
in “N”, “P” position On
When the selector lever is in any position other than “N”,
“P” Off
PKB SW Ignition switch ON When the parking brake is applied On
When the parking brake is released Off
PWR SUP MONI Engine running Power supply
voltage value of ADAS control unit
VHCL SPD AT While driving Va l u e o f A / T v e -
hicle speed sen- sor signal
THRTL OPENING Engine running Depress accelerator pedal Displays the
throttle position
Monitor item Condition Value/Status
Revision: 2010 May2011 QX56

DAS-96
< ECU DIAGNOSIS INFORMATION >[DCA]
ADAS CONTROL UNIT
LDP ON INDStart the engine and press dy-
namic driver assistance switch
(When LDP system setting is
ON) LDP ON indicator lamp ON On
LDP ON indicator lamp OFF Off
LANE DPRT W/L Drive the vehicle and activate
the LDW system or LDP sys-
tem Lane departure warning lamp ON On
Lane departure warning lamp OFF Off
LDW BUZER OUT-
PUT Drive the vehicle and activate
the LDW/LDP system or BSW
system When the buzzer of the following system operates
 LDW/LDP system
 BSW system
On
When the buzzer of the following system does not oper-
ate
 LDW/LDP system
 BSW system Off
LDP SYSTEM ON Start the engine and press dy-
namic driver assistance switch
(When LDP system setting is
ON) When the LDP system is ON On
When the LDP system is OFF Off
READY signal Start the engine and press dy-
namic driver assistance switch
(When LDP system setting is
ON) When the LDP system is ON On
When the LDP system is OFF Off
Camera lost Drive the vehicle and activate
the LDW system, LDP system Both side lane markers are detected Detect
Deviate side lane marker is lost Deviate
Both side lane markers are lost Both
Shift position  Engine running
 While driving Displays the
shift position
Turn signal Turn signal lamps OFF
Off
Turn signal lamp LH blinking LH
Turn signal lamp RH blinking RH
Turn signal lamp LH and RH blinking LH&RH
SIDE G While driving Vehicle turning right Negative value
Vehicle turning left Positive value
WARN REQ Drive the vehicle and activate
the LDP system Lane departure warning is operating On
Lane departure warning is not operating Off
STATUS signal Drive the vehicle and activate
the LDP system When the LDP system is ON Stnby
When the LDP system is operating Warn
When the LDP system is canceled Cancl
When the LDP system is OFF Off
Lane unclear While driving Lane marker is unclear On
Lane marker is clear Off
FUNC ITEM Ignition switch ON FUNC1
FUNC ITEM (NV-ICC) Ignition switch ON Off
FUNC ITEM (NV-
DCA) Ignition switch ON
Off
DCA SELECT Ignition switch ON “Distance Control Assist” set with the navigation system
is ON
On
“Distance Control Assist” set with the navigation system
is OFF Off
Monitor item Condition Value/Status
Revision: 2010 May2011 QX56