Nissan Sentra. Instruction — part 339
EC-52
< SYSTEM DESCRIPTION >
[MRA8DE]
SYSTEM
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)
CAN COMMUNICATION
CAN COMMUNICATION : System Description
INFOID:0000000009758375
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to
LAN-30, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart"
munication for detail.
ECO MODE CONTROL
ECO MODE CONTROL : System Description
INFOID:0000000009758376
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• ECM receives an ECO mode signal from combination meter via CAN communication and improves the fuel
economy by controlling the throttle movement to less than usual. Therefore, driving characteristic is con-
trolled (reducing energy consumption by decreasing needless acceleration and deceleration), so that driving
that improved operational fuel efficiency is assisted.
• ECM receives an ECO mode signal from TCM via CAN communication and improves the fuel economy by
controlling the throttle movement to less than usual.
• ECM transmits an ECO mode indicator lamp signal to the combination meter via CAN communication.
NOTE:
For the details of the ECO mode, refer to
DMS-26, "ECO MODE CONTROL : System Description"
(CVT mod-
DMS-6, "ECO MODE CONTROL : System Description"
SPORT MODE CONTROL
JPBIA5876GB
SYSTEM
EC-53
< SYSTEM DESCRIPTION >
[MRA8DE]
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EC
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SPORT MODE CONTROL : System Description
INFOID:0000000009758377
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• SPORT mode that keeps high engine revolution and provides direct feel and acceleration performance suit-
able for driving on winding road.
• ECM receives an SPORT mode signal from TCM via CAN communication and improves drivability by con-
trolling the throttle movement.
• ECM transmits an SPORT mode indicator lamp signal to the combination meter via CAN communication.
NOTE:
For the details of the SPORT mode, refer to
DMS-63, "SPORT MODE CONTROL : System Description"
models) or
DMS-43, "SPORT MODE CONTROL : System Description"
JSBIA3227GB
EC-54
< SYSTEM DESCRIPTION >
[MRA8DE]
OPERATION
OPERATION
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : Switch Name and Function
INFOID:0000000009758378
SWITCHES AND INDICATORS
*: Not applicable
SET SPEED RANGE
ASCD system can be set the following vehicle speed.
SWITCH OPERATION
Refer to
EC-51, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description"
for ASCD operating
instructions.
CRUISE indicator
SET indicator
*
CANCEL switch
ACCEL/RES switch
COAST/SET switch
ASCD MAIN switch
On the combination meter
On the steering wheel
JSBIA1227ZZ
Minimum speed (Approx.)
Maximum speed (Approx.)
40 km/h (25 MPH)
144 km/h (90 MPH)
Item
Function
CANCEL switch
Cancels the cruise control driving.
ACCEL/RES switch
• Resumes the set speed.
• Increases speed incrementally during cruise control driving.
COAST/SET switch
• Sets desired cruise speed.
• Decreases speed incrementally during cruise control driving.
ASCD MAIN switch
Master switch to activate the ASCD system.
ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-55
< SYSTEM DESCRIPTION >
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ON BOARD DIAGNOSTIC (OBD) SYSTEM
Diagnosis Description
INFOID:0000000009758379
This system is an on board diagnostic system that records exhaust emission-related diagnostic information
and detects a sensors/actuator-related malfunction. A malfunction is indicated by the malfunction indicator
lamp (MIL) and stored in ECU memory as a DTC. The diagnostic information can be obtained with the diag-
nostic tool (GST: Generic Scan Tool).
GST (Generic Scan Tool)
INFOID:0000000009758380
When GST is connected with a data link connector equipped on the vehicle side, it will communicate with the
control unit equipped in the vehicle and then enable various kinds of diagnostic tests. Refer to
.
NOTE:
Service $0A is not applied for regions where it is not mandated.
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