navigation INFINITI QX56 2011 Factory Repair Manual

DAS-240
< ECU DIAGNOSIS INFORMATION >[FCW]
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

DAS
ADAS CONTROL UNITDAS-241
< ECU DIAGNOSIS INFORMATION > [FCW]
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TERMINAL LAYOUT
PHYSICAL VALUES
LDP SELECT Ignition switch ON “Lane Departure Prevention” set with the navigation
system is ON
On
“Lane Departure Prevention” set with the navigation
system is OFF Off
BSI SELECT NOTE:
The item is indicated, but not monitored Off
NAVI ICC SELECT NOTE:
The item is indicated, but not monitored Off
NAVI DCA SELECT NOTE:
The item is indicated, but not monitored
Off
SYS SELECTABILITY Ignition switch ON Items set with the navigation system can be switched
normally
On
Items set with the navigation system cannot be
switched normally Off
WARN SYS SW Ignition switch ON When warning systems switch is pressed On
When warning systems switch is not pressed Off
BSW/BSI WARN LMP Ignition switch ON BSW warning lamp ON On
BSW warning lamp OFF Off
BSW SYSTEM ON Ignition switch ON When the BSW system is ON
(Warning systems ON indicator ON)
On
When the BSW system is OFF
(Warning systems ON indicator OFF) Off
4WD SW Engine running 4WD shift switch position is in AUTO AUTO
4WD shift switch position is in 4H 4H
4WD shift switch position is in 4L 4L
Monitor item Condition Value/Status
JSOIA0213ZZ
Revision: 2010 May2011 QX56

DAS
SYSTEM
DAS-281
< SYSTEM DESCRIPTION >[LDW & LDP]
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Output Signal Item
TCM CAN com-
munica-
tionInput speed signal Receives the number of revolutions of input shaft
Current gear position signal Receives a current gear position
Shift position signal Receives a selector lever position
Output shaft revolution signal Receives the number of revolutions of output shaft
ABS actuator
and electric unit
(control unit) CAN com-
munica-
tionABS malfunction signal Receives
a malfunction state of ABS
ABS operation signal Receives an operational state of ABS
TCS malfunction signal Receives a malfunction state of TCS
TCS operation signal Receives an operational state of TCS
VDC OFF switch signal Receives an ON/OFF state of VDC
VDC malfunction signal Receives a malfunction state of VDC
VDC operation signal Receives an operational state of VDC
Vehicle speed signal (ABS) Receives wheel speeds of four wheels
Yaw rate signal Receives yaw rate acting on the vehicle
Side G sensor signal Receives lateral G acting on the vehicle
Combination
meter CAN com-
munica-
tion
Parking brake switch signal Receives an operational state of the parking brake
BCM CAN com-
munica-
tion
Turn indicator signal
Receives an operational state of the turn signal lamp
and the hazard lamp
Steering angle
sensor CAN com-
munica-
tionSteering angle sensor malfunction signal Receives a malfunction state of steering angle sensor
Steering angle sensor signal
Receives the number of revolutions, turning direction of
the steering wheel
Steering angle speed signal Receives the turning angle speed of the steering wheel
AV control unit CAN com-
munica-
tion
System selection signal
Receives a selection state of each item in “Driver Assis-
tance” selected with the navigation system
Transfer control
unit CAN com-
munica-
tion
Current 4WD mode signal Receives a mode selection state of the 4WD shift switch
ICC sensor ITS com-
munica-
tion
ICC sensor signal
Receives detection results, such as the presence or ab-
sence of a vehicle ahead and distance from the vehicle
Lane camera
unit ITS com-
munica-
tion
Detected lane condition signal Receives detection results of lane marker
Transmit unit Signal name Description
Reception unit Signal name Description
ABS actuator
and electric
unit (control
unit) CAN commu-
nication
Target yaw moment signal Transmits a target yaw moment signal to generate
yaw moment to the vehicle
Combination
meter CAN commu-
nicationLDP ON indicator lamp signal
Transmits an LDP ON indicator lamp signal to turn ON
the LDP ON indicator lamp
Lane departure warning lamp signal Transmits an lane departure warning lamp signal to
turn ON the lane departure warning lamp
Revision: 2010 May2011 QX56

DAS-282
< SYSTEM DESCRIPTION >[LDW & LDP]
SYSTEM
FUNCTION DESCRIPTION
 Lane Departure Prevention (LDP) system provides a lane departure warning and brake control assistance
when the vehicle is driven at speeds of approximately 70 km/h (45 MPH) or more.
 When the vehicle approaches either the left or the right side of the traveling lane, a warning sounds and the
lane departure warning lamp (yellow) on the combinati on meter blinks to alert the driver. Then, the LDP sys-
tem automatically applies the brakes for a short period of ti me to help assist the driver to return the vehicle to
the center of the traveling lane.
 Warning and brake control are not performed during turn signal operation (lane change side).
 The warning and assist functions stop when the vehicl e returns to a position inside of the lane marker.
EXAMPLE
When the vehicle approaches the right lane marker, the driv er is alerted by the buzzer and the blinking of lane
departure warning lamp (yellow). Simultaneously, the left brake is controlled independently to generate force
toward the direction to recover the vehicle from the lane departure.
OPERATION DESCRIPTION
 When the system is turned ON by dynamic driver a ssistance switch, ADAS control unit transmits LDP ON
indicator signal to combination meter via CAN communication.
 Lane camera unit monitors lane markers of the traveling lane. It transmits the detected lane condition signal to ADAS control unit via ITS communication.
 When judging from a lane marker detection signal that the vehicle is approaching the lane marker, ADAS
control unit controls the following items.
- Activates warning buzzer.
- Transmits a lane departure warning lamp signal to combination meter via CAN communication.
- Calculates necessary yaw moment to transmit a target yaw moment signal to ABS actuator and electric unit (control unit) via CAN communication.
 When receiving the target yaw moment signal, ABS act uator and electric unit (control unit) controls brake
pressure of four wheels, respectively.
 When receiving the signal from ADAS control unit, combination meter turns ON/OFF the lane departure warning lamp (yellow) and the LDP ON indicator lamp (green).
OPERATING CONDITION
 LDP ON indicator lamp: ON
 Vehicle speed: approximately 70 km/h (45 MPH) or more
 Turn indicator signal: After 2 seconds or more from turned OFF
NOTE:
 When the LDP system setting on the navigation screen is ON.
Lane camera
unit ITS commu-
nicationVehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
Turn indicator signal Transmits a turn indicator signal received from BCM
Warning buzz-
er Warning buzzer signal Activates the warning buzzer
Reception unit Signal name Description
JPOIA0013GB
Revision: 2010 May2011 QX56

DAS
SYSTEM
DAS-283
< SYSTEM DESCRIPTION >[LDW & LDP]
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 After the operating conditions are satisfied, the c ontrol continues until the vehicle speed reaches approxi-
mately 60 km/h (40 MPH).
 The LDP system may not function properly, depending on the situation. Refer to DAS-288, "
Precautions for
Lane Departure Warning/Lane Departure Prevention".
Bulb Check Action and Fail-safe Indication
LANE DEPARTURE PREVENTION (LDP) SYSTEM : Fail-safe (ADAS Control Unit)
INFOID:0000000006223708
If a malfunction occurs in each system, ADAS control unit cancels eac h control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
Vehicle condition/ Driver's operation Indication on the combination meter Buzzer
Ignition switch
OFF ⇒ ON
(Bulb check) —
When DTC is detected
(Except “C1B01” and “C1B03”) Beep
Camera aiming is not completed
(“C1B01”is detected)
NOTE:
This is detected while driving the vehicle and the indication remains ON
until the ignition switch is turned OFF
Temporary disabled status at high temperature
(“C1B03”is detected)
Beep
When the dynamic driver assistance switch is pressed
[When the settings of LDP system, DCA system on the navigation screen
are both “OFF”] —
JPOIA0017GB
JPOIA0019GB
JPOIA0020GB
JPOIA0036GB
System Buzzer Warning lamp/Indicator lamp Description
Vehicle-to-vehicle distance control mode High-pitched
tone
ICC system warning lamp Cancel
Conventional (fixed speed) cruise control mode High-pitched
toneICC system warning lamp Cancel
Intelligent Brake Assist (IBA) High-pitched
toneIBA OFF indicator lamp Cancel
Forward Collision Warning (FCW) High-pitched
tone
IBA OFF indicator lamp Cancel
Distance Control Assist (DCA) High-pitched
toneICC system warning lamp Cancel
Lane Departure Warning (LDW) — Lane departure warning lamp Cancel
Revision: 2010 May2011 QX56

DAS-286
< SYSTEM DESCRIPTION >[LDW & LDP]
OPERATION
NOTE:
After the operating conditions of warning are satisfied,
the warning continues until the vehicle speed reaches
approximately 60 km/h (40 MPH). Refer to DAS-277, "
LANE DEPARTURE WARNING (LDW) SYSTEM : Sys-
tem Description".
LANE DEPARTURE PREVENTION (LDP) SYSTEM
LANE DEPARTURE PREVENTION (LDP) SY STEM : Switch Name and Function
INFOID:0000000006223712
LANE DEPARTURE PREVENTION (LDP) SYSTEM : Menu Displayed by Pressing
Each Switch
INFOID:0000000006223713
INDICATOR LAMP AND WARNING LAMP
Vehicle condition/ Driver's operation Action Driver warning
systems ON in- dicator Indication on the combination
meter Buzzer
Less than Ap-
prox. 60 km/h
(40 MPH) Close to lane marker No action ON OFF —
Approx. 70
km/h (45
MPH) or more Close to lane marker
Warning
 Buzzer sounds
 Warning lamp blinks ON
Short con-
tinuous
beeps
 Close to lane marker
 Turn signal ON (Deviate side) No action ON OFF —
JPOIA0018GB
JSOIA0369ZZ
No. Switch name Description
1 Dynamic driver assistance switch Turns LDP system ON/OFF
(When the setting of LDP system on the navigation system setting screen is ON)
2 LDP system settings screen
(Navigation system settings screen) The setting of LDP system can be switched between ON and OFF
JSOIA0243ZZ
Revision: 2010 May2011 QX56

DAS-296
< SYSTEM DESCRIPTION >[LDW & LDP]
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-306
< ECU DIAGNOSIS INFORMATION >[LDW & LDP]
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

DAS
ADAS CONTROL UNITDAS-307
< ECU DIAGNOSIS INFORMATION > [LDW & LDP]
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TERMINAL LAYOUT
PHYSICAL VALUES
LDP SELECT Ignition switch ON “Lane Departure Prevention” set with the navigation
system is ON
On
“Lane Departure Prevention” set with the navigation
system is OFF Off
BSI SELECT NOTE:
The item is indicated, but not monitored Off
NAVI ICC SELECT NOTE:
The item is indicated, but not monitored Off
NAVI DCA SELECT NOTE:
The item is indicated, but not monitored
Off
SYS SELECTABILITY Ignition switch ON Items set with the navigation system can be switched
normally
On
Items set with the navigation system cannot be
switched normally Off
WARN SYS SW Ignition switch ON When warning systems switch is pressed On
When warning systems switch is not pressed Off
BSW/BSI WARN LMP Ignition switch ON BSW warning lamp ON On
BSW warning lamp OFF Off
BSW SYSTEM ON Ignition switch ON When the BSW system is ON
(Warning systems ON indicator ON)
On
When the BSW system is OFF
(Warning systems ON indicator OFF) Off
4WD SW Engine running 4WD shift switch position is in AUTO AUTO
4WD shift switch position is in 4H 4H
4WD shift switch position is in 4L 4L
Monitor item Condition Value/Status
JSOIA0213ZZ
Revision: 2010 May2011 QX56

DAS
ACTION TESTDAS-337
< BASIC INSPECTION > [LDW & LDP]
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After the operating conditions of warning are satisf ied, the warning continues until the vehicle speed
reaches approximately 60 km/h (40 MPH). Refer to DAS-277, "
LANE DEPARTURE WARNING (LDW)
SYSTEM : System Description".
>> GO TO 2.
2.CHECK LDP SYSTEM SETTING
1. Start the engine.
2. Check that the LDP system setting can be enabled/disabled on the navigation screen.
3. Turn OFF the ignition switch and wait for 30 seconds or more.
4. Check that the previous setting is saved when the engine starts again.
>> GO TO 3.
3.ACTION TEST FOR LDP
1. Enable the setting of the LDP system on the navigation screen.
2. Turn dynamic driver assistance switch ON (LDP ON indicator lamp is ON).
NOTE:
LDW system is OFF.
3. Check the LDP operation according to the following table.
Vehicle condition/ Driver's operation Action Indication on the combination meter Buzzer
Less than Ap- prox. 60 km/h
(40 MPH) Close to lane marker No action —
JPOIA0021GB
Revision: 2010 May2011 QX56