2011 INFINITI QX56 4WD
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![INFINITI QX56 2011 Factory Service Manual
DAS
SYSTEMDAS-69
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Output Signal Item
Transmit unit Signal name Description
ECM CAN com-
munica-
tionClosed throttle position signal Receives](/manual-img/42/57033/w960_57033-1033.png "INFINITI QX56 2011 Factory Service Manual
DAS
SYSTEMDAS-69
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Output Signal Item
Transmit unit Signal name Description
ECM CAN com-
munica-
tionClosed throttle position signal Receives")
DAS
SYSTEMDAS-69
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Output Signal Item
Transmit unit Signal name Description
ECM CAN com-
munica-
tionClosed throttle position signal Receives idle position state (ON/OFF)
Accelerator pedal position signal Receives accelerator pedal position (angle)
ICC steering switch
signal
Dynamic driver as-
sistance switch sig-
nal Receives the operational state of the ICC steering
switch
Engine speed signal Receives engine speed
Stop lamp switch signal Receives an operational state of the brake pedal
Snow mode signal Receives an operational state of the snow mode
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
ABS warning lamp signal Receives an ON/OFF state of ABS warning lamp
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
Stop lamp switch signal Receives an operational state of the brake pedal
Yaw rate signal Receives yaw rate acting on the vehicle
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-
tionSystem selection signal
Receives a selection state of each item in “Driver As-
sist” 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 mode
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
Accelerator
pedal actuator ITS com-
munica-
tionAccelerator pedal actuator operation status
signal
Receives an operational state of accelerator pedal ac-
tuator
Reception unit Signal name Description
ABS actuator
and electric
unit (control
unit) CAN commu-
nication
Brake fluid pressure control signal Transmits a brake fluid pressure control signal to acti-
vates the brake
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DAS
SYSTEMDAS-71
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Operation Condition
ADAS control unit performs the control when the following conditions are satisfied.
When the DCA sy](/manual-img/42/57033/w960_57033-1035.png "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 sy")
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
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DAS
OPERATIONDAS-75
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NOTE:
When the DCA system is automatic ally canceled, the cancellation condition can be displayed on “WORK
SUPPORT”](/manual-img/42/57033/w960_57033-1039.png "INFINITI QX56 2011 Factory Service Manual
DAS
OPERATIONDAS-75
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NOTE:
When the DCA system is automatic ally canceled, the cancellation condition can be displayed on “WORK
SUPPORT”")
DAS
OPERATIONDAS-75
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NOTE:
When the DCA system is automatic ally canceled, the cancellation condition can be displayed on “WORK
SUPPORT” of CONSULT-III (ICC/ADAS).
Condition Description Display on combination meter
Warning display When the dynamic driver assistance
switch is turned ON with settings of
DCA system and LDP system OFF
The DCA system is not activated. The DCA
system switch indicator blinks.
When the VDC or ABS (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
When driving into a strong light (i.e., sunlight) The DCA system is automatically can-
celed. The chime will sound and the DCA
system switch indicator will blink.
NOTE:
The system operates if the dynamic driver
assistance switch is turned OFF
⇒ON after
the condition improves.
When the sensor window is dirty, mak-
ing it impossible to detect a vehicle
ahead The DCA system is automatically can-
celed. The chime sounds and the ICC sys-
tem warning lamp will come on and the
“CLEAN SENSOR” indicator will appear.
NOTE:
Stop the vehicle in a safe location and turn
the ignition switch OFF. Clean the dirty
area with soft cloth. The system returns to
normal condition when turning the ignition
switch ON again.
When the DCA system is not operating
properly The chime sounds and the ICC system
warning lamp will come on.
NOTE:
Turn the ignition switch OFF, and then turn
the ignition switch ON again. If there is no
malfunction, the system returns to the nor-
mal condition.
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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](/manual-img/42/57033/w960_57033-1045.png "INFINITI QX56 2011 Factory Service Manual
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")
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
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DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-85
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ACTIVE TEST
CAUTION:
Never perform “Active Test” while driving the vehicle.
The “A](/manual-img/42/57033/w960_57033-1049.png "INFINITI QX56 2011 Factory Service Manual
DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-85
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ACTIVE TEST
CAUTION:
Never perform “Active Test” while driving the vehicle.
The “A")
DAS
DIAGNOSIS SYSTEM (ADAS CONTROL UNIT)
DAS-85
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ACTIVE TEST
CAUTION:
Never perform “Active Test” while driving the vehicle.
The “Active Test” cannot be performed when th e following systems warning lamp is illuminated.
- ICC system warning lamp
- Lane departure warning lamp
- BSW warning lamp
- IBA OFF indicator lamp (IBA system ON)
Shift the selector lever to “P” po sition, and then perform the test.
METER LAMP
NOTE:
The test can be performed only when the engine is running.
BSW SYSTEM ON
[On/Off] ×
Indicates [On/Off] status of BSW system
4WD SW
[AUTO, 4H, 4L] ×××
Indicates [On/Off] status as judged from current 4WD mode signal (Transfer con-
trol unit transmits current 4WD mode signal through CAN communication)
Monitored item
[Unit]
ALL SIG
(ICC)
MAIN SIG (ICC)
MAIN SIG
(LDW/LDP)
MAIN SIG
(BSW/BSI)
Description
Test item Description
METER LAMP The ICC system warning lamp, MAIN switch indicator and IBA OFF indicator lamp can be illuminated
by ON/OFF operations as necessary
STOP LAMP The ICC brake hold relay can be operated by ON/OFF operations as necessary, and the stop lamp
can be illuminated
ICC BUZZER Sounds a buzzer used for following systems by arbitrarily operating ON/OFF
Intelligent Cruise Control (ICC)
Distance Control Assist (DCA)
Forward Collision Warning (FCW)
Intelligent Brake Assist (IBA)
BRAKE ACTUATOR Activates the brake by an arbitrary operation
Active Pedal The accelerator pedal actuator can be operated as necessary
DCA INDICATOR The DCA system switch indicator can be illuminated by ON/OFF operations as necessary
LDP BUZZER Sounds a buzzer used for following systems by arbitrarily operating ON/OFF
Lane Departure Warning (LDW)
Lane Departure Prevention (LDP)
Blind Spot Warning (BSW)
WARNING SYSTEM IND The warning systems ON indicator (on warning systems switch) can be illuminated by ON/OFF op-
erations as necessary
LDP ON IND The LDP ON indicator lamp can be illuminated by ON/OFF operations as necessary
LANE DEPARTURE W/L The lane departure warning lamp can be illuminated by ON/OFF operations as necessary
BSW/BSI WARNING LAMP The BSW warning lamp can be illuminated by ON/OFF operations as necessary
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DAS
ADAS CONTROL UNITDAS-97
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TERMINAL LAYOUT
PHYSICAL VALUES
LDP SELECT Ignition switch ON “Lane Departure Prevention” set with th](/manual-img/42/57033/w960_57033-1061.png "INFINITI QX56 2011 Factory Service Manual
DAS
ADAS CONTROL UNITDAS-97
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TERMINAL LAYOUT
PHYSICAL VALUES
LDP SELECT Ignition switch ON “Lane Departure Prevention” set with th")
DAS
ADAS CONTROL UNITDAS-97
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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
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DAS-100
< ECU DIAGNOSIS INFORMATION >[DCA]
ADAS CONTROL UNIT
DTC Index
INFOID:0000000006223513
NOTE:
The details of time display are as per the following.
4 C1A01: POWER SUPPLY CIR
C1A02: POWER](/manual-img/42/57033/w960_57033-1064.png "INFINITI QX56 2011 Factory Service Manual
DAS-100
< ECU DIAGNOSIS INFORMATION >[DCA]
ADAS CONTROL UNIT
DTC Index
INFOID:0000000006223513
NOTE:
The details of time display are as per the following.
4 C1A01: POWER SUPPLY CIR
C1A02: POWER")
DAS-100
< ECU DIAGNOSIS INFORMATION >[DCA]
ADAS CONTROL UNIT
DTC Index
INFOID:0000000006223513
NOTE:
The details of time display are as per the following.
4 C1A01: POWER SUPPLY CIR
C1A02: POWER SUPPLY CIR 2
C1A04: ABS/TCS/VDC CIRC
C1A05: BRAKE SW/STOP L SW
C1A06: OPERATION SW CIRC
C1A12: LASER BEAM OFFCNTR
C1A13: STOP LAMP RLY FIX
C1A14: ECM CIRCUIT
C1A16: RADAR STAIN
C1A18: LASER AIMING INCMP
C1A2A: ICC SEN PWR SUP CIR
C1A21: ICC SENSOR HIGH TEMP
C1A24: NP RANGE
C1A26: ECD MODE MALF
C1A27: ECD PWR SUPLY CIR
C1A33: CAN TRANSMISSION ERR
C1A34: COMMAND ERROR
C1A35: APA CIR
C1A36: APA CAN COMM CIR
C1A37: APA CAN CIR 2
C1A38: APA CAN CIR 1
C1A39: STRG SEN CIR
C1A40: SYSTEM SW CIRC
C1B01: CAM AIMING INCMP
C1B03: CAM ABNRML TMP DETCT
C1F01: APA MOTOR MALF
C1F05: APA PWR SUPLY CIR
U0121: VDC CAN CIR 2
U0126: STRG SEN CAN CIR 1
U0235: ICC SENSOR CAN CIRC 1
U0401: ECM CAN CIR 1
U0402: TCM CAN CIR 1
U0415: VDC CAN CIR 1
U0428: STRG SEN CAN CIR 2
U1500: CAM CAN CIR 2
U1501: CAM CAN CIR 1
U1502: ICC SEN CAN COMM CIR
U1503: SIDE RDR L CAN CIR 2
U1504: SIDE RDR L CAN CIR 1
U1505: SIDE RDR R CAN CIR 2
U1506: SIDE RDR R CAN CIR 1
U150B: ECM CAN CIRC 3
U150C: VDC CAN CIRC 3
U150D: TCM CAN CIRC 3
U150E: BCM CAN CIRC 3
U150F: AV CAN CIRC 3
U1512: HVAC CAN CIRC3
U1513: METER CAN CIRC 3
U1514: STRG SEN CAN CIRC 3
U1515: ICC SENSOR CAN CIRC 3
U1516: CAM CAN CIRC 3
U1517: APA CAN CIRC 3
U1518: SIDE RDR L CAN CIRC 3
U1519: SIDE RDR R CAN CIRC 3
U1520: 4WD CAN CIRC 3
5 C1A03: VHCL SPEED SE CIRC
6 C1A15: GEAR POSITION
7 C1A00: CONTROL UNIT
Priority Detected items (DTC)
Revision: 2010 May2011 QX56
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DAS
ADAS CONTROL UNITDAS-103
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NOTE:
With the detection of “U1000” some syst ems do not perform the fail-safe operation.
A system c](/manual-img/42/57033/w960_57033-1067.png "INFINITI QX56 2011 Factory Service Manual
DAS
ADAS CONTROL UNITDAS-103
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NOTE:
With the detection of “U1000” some syst ems do not perform the fail-safe operation.
A system c")
DAS
ADAS CONTROL UNITDAS-103
< ECU DIAGNOSIS INFORMATION > [DCA]
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NOTE:
With the detection of “U1000” some syst ems do not perform the fail-safe operation.
A system controlling based on a signal received from the control unit performs fail-safe operation when the
communication with the ADAS control unit becomes inoperable.
U1500 145 CAM CAN CIR 2 ON F DAS-381
U1501 146 CAM CAN CIR 1 ON FDAS-382
U1502 147ICC SEN CAN COMM
CIR ON ON A, B, C, D, E
DAS-189
U1503 150 SIDE RDR L CAN CIR 2 ON G DAS-502
U1504 151 SIDE RDR L CAN CIR 1 ON GDAS-503
U1505 152 SIDE RDR R CAN CIR 2 ON GDAS-504
U1506 153 SIDE RDR R CAN CIR 1 ON GDAS-505
U1507 154LOST COMM (SIDE
RDR R) ON G
DAS-506
U1508 155LOST COMM (SIDE
RDR L) ON G
DAS-507
U150B 157 ECM CAN CIRC 3 ON ON ON A, B, E, F, G DAS-185
U150C 158 VDC CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, G DAS-186
U150D 159 TCM CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, GDAS-187
U150E 160 BCM CAN CIRC 3 ON ON ON A, B, E, F, GDAS-188
U150F 161 AV CAN CIRC 3 DAS-61
U1512 162 HVAC CAN CIRC3 ON FDAS-383
U1513 163 METER CAN CIRC 3 ON ON ON ON A, B, C, D, E, F, GDAS-190
U1514 164 STRG SEN CAN CIRC 3 ON ON ON A, B, C, D, E, GDAS-191
U1515 165 ICC SENSOR CAN
CIRC 3 ON ON A, B, C, D, E
DAS-192
U1516 166 CAM CAN CIRC 3 ON F DAS-385
U1517 167 APA CAN CIRC 3 ON A, B, EDAS-193
U1518 168 SIDE RDR L CAN CIRC 3 ON GDAS-510
U1519 169SIDE RDR R CAN CIRC
3 ON G
DAS-511
U1520 176 4WD CAN CIRC 3 ON ON ON A, B, C, D, E, F DAS-194
Systems for fail-safe
A: Vehicle-to-vehicle distance control mode
B: Conventional (fixed speed) cruise control mode
C: Intelligent Brake Assist (IBA)
D: Forward Collision Warning (FCW)
E: Distance Control Assist (DCA)
F: Lane Departure Warning (LDW)/Lane Departure Prevention (LDP)
G: Blind Spot Warning (BSW)
DTC
CONSULT-III display Warning lamp Fail-safe
Reference
CONSULT-III On board
display
ICC system warning lamp
IBA OFF indicator lamp
Lane departure warning lamp BSW warning lamp
System
Revision: 2010 May2011 QX56