2011 NISSAN LATIO Service Repair Manual

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Page 1817 of 3787

NISSAN LATIO 2011 Service Repair Manual AUTOMATIC SPEED CONTROL DEVICE (ASCD)EC-523
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System DescriptionINFOID:0000000006341703
INPUT/OUTPU

AUTOMATIC SPEED CONTROL DEVICE (ASCD)EC-523
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System DescriptionINFOID:0000000006341703
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set
vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric thro ttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE i ndicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE indicato r in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indicator in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is depressed during cruise control driving, increase the vehicle speed
until the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exis t, cruise operation will be canceled.
• CANCEL switch is pressed
• More than two switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Clutch pedal is depressed or gear position is changed to the neutral position (M/T models)
• Selector lever is changed to N, P, R position (A/T and CVT models)
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
• Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may blink slowly.
When the engine coolant temperature decreases to t he normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
• Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
Sensor Input signal to ECM ECM functionActuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator
Stop lamp switch
Brake pedal operation
ASCD clutch switch (M/T models) Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Park/neutral position (PNP) signal Gear position
ABS actuator and electric unit (con-
trol unit) Vehicle speed*
Combination meter
TCM Powertrain revolution*
Revision: May 2010 2011 Versa

Page 1818 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-524
< SERVICE INFORMATION >[MR18DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
When the SET/COAST switch is depressed during cruise
control driving, decrease vehicle set speed until the
switch is relea

Page 1819 of 3787

NISSAN LATIO 2011 Service Repair Manual CAN COMMUNICATIONEC-525
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CAN COMMUNICATION
System DescriptionINFOID:0000000006341705
CAN (Controller Area Network) is a serial communica

Page 1820 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-526
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EVAPORATIVE EMISSION SYSTEM
EVAPORATIVE EMISSION SYSTEM
DescriptionINFOID:0000000006341706
SYSTEM DESCRIPTION
The evaporative emission system is used to reduce h

Page 1821 of 3787

NISSAN LATIO 2011 Service Repair Manual EVAPORATIVE EMISSION SYSTEMEC-527
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NOTE: Do not use soapy water or any type of so
lvent while installing vacuum hose or purge hoses.
:Ve

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NISSAN LATIO 2011 Service Repair Manual EC-528
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EVAPORATIVE EMISSION SYSTEM
Component Inspection
INFOID:0000000006341707
EVAP CANISTER
(A): To previous figure
1. EVAP control system pressure sensor 2. EVAP can

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NISSAN LATIO 2011 Service Repair Manual EVAPORATIVE EMISSION SYSTEMEC-529
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Check EVAP canister as follows:
1. Block port
(B).
2. Blow air into port (A) and confirm that it fl

Page 1824 of 3787

NISSAN LATIO 2011 Service Repair Manual EC-530
< SERVICE INFORMATION >[MR18DE]
EVAPORATIVE EMISSION SYSTEM
Positive pressure is delivered to the EVAP system through the EVAP
service port. If fuel vapor leakage in the EVAP system occurs, use

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