Nissan Sentra Service Manual: Automatic speed control device (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description
SYSTEM DIAGRAM
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.
The ASCD operation status is indicated on the combination meter. If any malfunction occurs in ASCD system, ECM automatically deactivates the ASCD control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (CRUISE is indicated on the combination meter.) When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89 MPH), press SET/COAST switch.
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.
- 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
- Selector lever is changed to N, P, R 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 indicators.
- Engine coolant temperature is slightly higher than the normal operating
temperature, CRUISE indicator may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE indicator will stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/ ACCELERATE switch.
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
- Selector lever is in other than P and N positions
- Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
Evaporative emission system
EVAPORATIVE EMISSION SYSTEM : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (P ...
Can communication
CAN COMMUNICATION : System Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data commu ...
Other materials:
Parking/parking on hills
WARNING
Do not stop or park the vehicle over
flammable materials such as dry grass,
waste paper or rags. They may ignite
and cause a fire.
Safe parking procedures require that
both the parking brake be set and the
transmission placed into P (Park) for
CVT m ...
Unit disassembly and assembly
Front coil spring and strut
Exploded View
Piston rod lock nut
Strut mount insulator
Strut mount bearing
Bound bumper
Coil spring
Lower rubber seat
Strut
Steering knuckle
Front
Disassembly and Assembly
DISASSEMBLY
CAUTION:
Do not damage the piston rod when removing comp ...
P0196 EOT Sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0196 is displayed with DTC P0197 or P0198, first perform the
trouble diagnosis for DTC P0197 or
P0198. Refer to EC-264, "DTC Logic".
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possib ...
