Nissan Tiida C11. Manual — part 519
EC-726
< FUNCTION DIAGNOSIS >
[MR18DE]
AIR CONDITIONING CUT CONTROL
1.
Crankshaft position sensor (POS)
2.
Comshaft position sensor (PHASE)
3.
EVAP canistor purge volume control
solenoid valve
4.
ECM
5.
Stop lamp switch
6.
Accelerator pedal position sensor
PBIA9902J
AIR CONDITIONING CUT CONTROL
EC-727
< FUNCTION DIAGNOSIS >
[MR18DE]
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Component Description
INFOID:0000000001161734
1.
ASCD steering switch
2.
MAIN switch
3.
CANCEL switch
4.
SET/COAST switch
5.
RESUME/ACCELEATE switch
6.
Stop lamp switch
7.
ASCD brake switch
8.
ASCD clutch switch
9.
Cluch pedal
ALBIA0273ZZ
Component
Reference
Accelerator pedal position sensor
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine coolant temperature sensor
Refrigerant pressure sensor
Vehicle speed sensor
EC-728
< FUNCTION DIAGNOSIS >
[MR18DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System Diagram
INFOID:0000000001161735
System Description
INFOID:0000000001161736
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 throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE lamp and SET lamp in combination meter. If any malfunc-
tion 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 lamp in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 180 km/h (112
MPH), press SET/COAST switch. (Then SET lamp in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is pressed 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 exist, cruise operation will be canceled.
JMBIA0411GB
Sensor
Input signal to ECM
ECM function
Actuator
ASCD brake switch
Brake pedal operation
ASCD vehicle speed control
Electric throttle control
actuator
Stop lamp switch
ASCD clutch switch (M/T models)
Clutch pedal operation
ASCD steering switch
ASCD steering switch operation
Park/neutral position (PNP) switch
Gear position
Combination meter*
Vehicle speed
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-729
< FUNCTION DIAGNOSIS >
[MR18DE]
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• CANCEL switch is pressed
• More than 2 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 neutral position.
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
• TCS system is operated
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 the 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
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must
meet following conditions.
• Brake pedal is released
• Clutch pedal is released
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 180 km/h (112 MPH)
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