INFINITI QX56 2011 Factory Service Manual

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-88
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
LDP ON IND
LANE DEPARTURE W/L
BSW/BSI WARNING LAMP
Te s t i t e mOper-
ation Description Warning systems ON indicator
WARNING SYSTEM
IND Off
Stops transmitting the warning systems ON indicator signal
below to end the test —
On Transmits the warning systems ON indicator signal to the
warning systems ON indicator
ON
Te s t i t e mOper-
ation Description LDP ON in
dicator lamp (Green)
LDP ON IND Off
Stops transmitting the LDP ON indicator lamp signal be-
low to end the test —
On Transmits the LDP ON indicator lamp signal to the com-
bination meter via CAN communication
ON
Te s t i t e mOper-
ation Description Lane departure warning lamp (Yellow)
LANE DEPARTURE
W/L Off
Stops transmitting the lane departure warning lamp sig-
nal below to end the test —
On Transmits the lane departure warning lamp signal to the
combination meter via CAN communication
ON
Te s t i t e mOper-
ation Description BSW warning lamp
BSW/BSI WARNING
LAMP Off
Stops transmitting the BSW warning lamp signal below
to end the test —
On Transmits the BSW warning lamp signal to the combina-
tion meter via CAN communication
ON
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ICC SENSOR)DAS-89
< SYSTEM DESCRIPTION > [DCA]
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DIAGNOSIS SYSTEM (ICC SENSOR)
CONSULT-III Function (LASER)INFOID:0000000006228055
APPLICATION ITEMS
CONSULT-III performs the following functions via CAN communication with ADAS control unit and the com-
munication with ICC sensor.
WORK SUPPORT
Laser Beam Adjust
Refer to CCS-72, "Description".
SELF DIAGNOSTIC RESULT
Refer to CCS-55, "DTC Index".
DATA MONITOR
Diagnosis mode Description
Work Support It can monitor the adjustment direction indication in order to perform the laser beam aiming operation
smoothly
Self Diagnostic Result Displays malfunctioning system memorized in ICC sensor
Data Monitor Displays real-time input/output data of ICC sensor
Ecu Identification Displays ICC sensor part number
CAN Diag Support Monitor The results of transmit/receive diagnosis of ITS communication can be read
Work support items Description
LASER BEAM ADJUST Outputs laser beam, calculates dislocation of the beam, and indicates adjustment direction
Monitored item
[Unit] Description
VHCL SPEED SE
[km/h] or [mph] Vehicle speed judged from a vehicle speed signal read by the ICC sensor via ITS communica-
tion is displayed [ADAS control unit receives a vehicle speed signal from ABS actuator and
electric unit (control unit) via CAN communication and transmits the calculated vehicle speed
to ICC sensor via ITS communication]
YAW R AT E
[deg/s] Indicates yaw rate read from ADAS control unit through ITS communication (ADAS control unit
receives yaw rate signal from ABS actuator and electric unit (control unit) via CAN communi-
cation and transmits yaw rate calculated by the ADAS control unit)
Yaw rate judged from a yaw rate signal read by ICC sensor via ITS communication is displayed
[ADAS control unit receives a yaw
rate signal from ABS actuator and electric unit (control unit)
via CAN communication and transmits the calculated yaw rate to ICC sensor via ITS commu-
nication]
PWR SUP MONI
[V] Indicates IGN voltage input by ICC sensor
DISTANCE
[m] Indicates the distance from the vehicle ahead
RELATIVE SPD
[m/s] Indicates the relative speed of the vehicle ahead
LASER OFFSET
[m] NOTE:
The item is indicated, but not used
LASER HEIGHT
[m] NOTE:
The item is indicated, but not used
STEERING ANGLE
[deg] The steering angle is displayed
STRG ANGLE SPEED
[deg/s] The steering angle speed is displayed
Revision: 2010 May2011 QX56

DAS-90
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ICC SENSOR)
L/R ADJUST
[deg]The horizontal correction value of the laser beam is displayed
U/D ADJUST
[deg] The vertical correction value of the laser beam is displayed
Monitored item
[Unit] Description
Revision: 2010 May2011 QX56

DAS
DIAGNOSIS SYSTEM (ACCELERATOR PEDAL ACTUATOR)
DAS-91
< SYSTEM DESCRIPTION > [DCA]
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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-92
< SYSTEM DESCRIPTION >[DCA]
DIAGNOSIS SYSTEM (ACCELERATOR PEDAL ACTUATOR)
ACTIVE TEST
CAUTION:
Never perform ACTIVE TEST while driving the vehicle.
NOTE:
The active test cannot be performed when the
ICC system warning lamp is illuminated.
Item list
ACCELERATOR PEDAL ACTUATOR TEST 1
NOTE:
Check the accelerator pedal by depressing when performing the test.
ACCELERATOR PEDAL ACTUATOR TEST 2
NOTE:
Check the accelerator pedal by depressing when performing the test.
ECU IDENTIFICATION
Displays accelerator pedal assembly parts number.
Monitor item [Unit] FUNCTION 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
(The ADAS control unit transmits the accelerator pedal feedback force control signal via ITS commu-
nication)
TGT MOT POSI
[%] It displays the target motor position that the acce
lerator pedal actuator read out from the accelerator
pedal feedback force control signal received via ITS communication
(The ADAS control unit transmits the accelerator pedal feedback force control signal via ITS commu-
nication)
ACT MOT POSI
[%] It displays the integrated motor position that the accelerator pedal actuator read out
AP OPEN
[%] It displays the accelerator pedal position signal that the accelerator pedal actuator read out via ITS
communication
(The ADAS control unit transmits with ITS communication the accelerator pedal position signal that
is received from ECM via CAN communication)
APA TEMP
[ ° C] It displays the accelerator pedal actuator integrated motor temperature
APA CURRENT
[A] It displays the accelerator pedal actuator integrated motor consumption current
APA PWR
[V] It displays the power supply voltage that the accelerator pedal actuator read out
APA OPE STATS
[On/Off] It displays the activation permission status of accelerator pedal actuator
APA STATS
[READY/NG/TP NG/INIT] It displays the condition of accelerator pedal actuator
Active test item Description
ACCELERATOR PEDAL ACTUATOR TEST1 Drive the accelerator pedal actuator and generate the constant accelerator pedal
actuation force
ACCELERATOR PEDAL ACTUATOR TEST2 Drive the accelerator pedal actuator and generate the vibration
Active test item Operation Description
ACCELERATOR PEDAL AC-
TUATOR TEST1 STOP Finish the test
START Generate the constant accelerator pedal actuation force for accelerator pedal
Active test item Operation Description
ACCELERATOR PEDAL AC-
TUATOR TEST 2 STOP Finish the test
START Generate the vibration for accelerator pedal
Revision: 2010 May2011 QX56

DAS
ADAS CONTROL UNITDAS-93
< ECU DIAGNOSIS INFORMATION > [DCA]
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ECU DIAGNOSIS INFORMATION
ADAS CONTROL UNIT
Reference ValueINFOID:0000000006223510
VALUES ON THE DIAGNOSIS TOOL
Monitor item Condition Value/Status
MAIN SW Ignition switch ON When MAIN switch is pressed On
When MAIN switch is not pressed Off
SET/COAST SW Ignition switch ON When SET/COAST switch is pressed On
When SET/COAST switch is not pressed Off
CANCEL SW Ignition switch ON When CANCEL switch is pressed On
When CANCEL switch is not pressed Off
RESUME/ACC SW Ignition switch ON When RESUME/ACCELERATE
switch is pressed On
When RESUME/ACCELERATE switch is not pressed Off
DISTANCE SW Ignition switch ON When DISTANCE swit
ch is pressed On
When DISTANCE switch is not pressed Off
CRUISE OPE Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When ICC system is controlling On
When ICC system is not controlling Off
BRAKE SW Ignition switch ON When brake pedal is depressed Off
When brake pedal is not depressed On
STOP LAMP SW Ignition switch ON When brake pedal is depressed On
When brake pedal is not depressed Off
IDLE SW Engine running Idling On
Except idling (depress accelerator pedal) Off
SET DISTANCE  Start the engine and turn the
ICC system ON
 Press the DISTANCE switch to change the vehi-
cle-to-vehicle distance set-
ting When set to “long” Long
When set to “middle” Mid
When set to “short” Short
CRUISE LAMP Start the engine and press
MAIN switch ICC system ON
(MAIN switch indicator ON)
On
ICC system OFF
(MAIN switch indicator OFF) Off
OWN VHCL Start the engine and press
MAIN switch ICC system ON
(Own vehicle indicator ON)
On
ICC system OFF
(Own vehicle indicator OFF) Off
VHCL AHEAD Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When a vehicle ahead is detected (vehicle ahead de-
tection indicator ON)
On
When a vehicle ahead is not detected (vehicle ahead
detection indicator OFF) Off
ICC WARNING Start the engine and press
MAIN switch When ICC system is malfunctioning
(ICC system warning lamp ON)
On
When ICC system is normal
(ICC system warning lamp OFF) Off
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
ADAS CONTROL UNITDAS-95
< ECU DIAGNOSIS INFORMATION > [DCA]
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GEAR While driving Displays the
gear position
MODE SIG Start the engine and press
MAIN switch When ICC system is deactivated Off
When vehicle-to-vehicle distance control mode is acti-
vated
ICC
When conventional (fixed speed) cruise control mode is
activated ASCD
SET DISP IND  Drive the vehicle and acti-
vate the conventional (fixed
speed) cruise control mode
 Press SET/COAST switch SET switch indicator ON On
SET switch indicator OFF Off
DISTANCE Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When a vehicle ahead is detected
Displays the dis-
tance from the
preceding vehi- cle
When a vehicle ahead is not detected 0.0
RELATIVE SPD Drive the vehicle and activate
the vehicle-to-vehicle distance
control mode When a vehicle ahead is detected
Displays the rel-
ative speed.
When a vehicle ahead is not detected 0.0
DYNA ASIST SW Ignition switch ON When dynamic driver assistance switch is pressed On
When dynamic driver assistance switch is not pressed Off
DCA ON IND Start the engine and press dy-
namic driver assistance switch
(When DCA setting is ON) DCA system OFF
(DCA system switch indicator OFF)
Off
DCA system ON
(DCA system switch indicator ON) On
DCA VHL AHED Drive the vehicle and activate
the DCA system When a vehicle ahead is not detected (vehicle ahead
detection indicator OFF)
Off
When a vehicle ahead is detected (vehicle ahead de-
tection indicator ON) On
IBA SW Ignition switch ON When the IBA OFF switch is pressed On
When the IBA OFF switch is not pressed Off
FCW SYSTEM ON Ignition switch ON When the FCW system is ON
(Warning systems ON indicator ON)
On
When the FCW system is OFF
(Warning systems ON indicator OFF) Off
APA TEMP Engine running Display the ac-
celerato
r pedal
actuator inte- grated motor temperature
APA PWR Ignition switch ON Power supply
voltage value of
accelerator ped- al actuator
LDW SYSTEM ON Ignition switch ON When the LDW system is ON
(Warning systems ON indicator ON)
On
When the LDW system is OFF
(Warning systems ON indicator OFF) Off
LDW ON LAMP Ignition switch ON Warning systems ON indicator ON On
Warning systems ON indicator OFF Off
Monitor item Condition Value/Status
Revision: 2010 May2011 QX56