Nissan Qashqai J11. Manual — part 268
SYSTEM
ECM-49
< SYSTEM DESCRIPTION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
(When the engine coolant temperature decreases to the normal operating temperature, ASCD indicator 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
(When ASCD is operating, all of ASCD operations will be canceled and vehicle speed memory will be
erased.)
COAST OPERATION
When the SET/
−
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 RES/+ switch is pressed after cancel operation other than pressing MAIN switch is performed, vehi-
cle 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 (M/T models)
• Selector lever is in other than P and N positions (CVT models)
• Vehicle speed is greater than 40 km/h (25 MPH) and less than 186 km/h (115 MPH) (for Europe M/T models)
or 177 km/h (109 MPH) (for Europe CVT models) or 144 km/h (89 MPH) (except for Europe)
GEAR SHIFT INDICATOR SYSTEM
GEAR SHIFT INDICATOR SYSTEM : System Description
INFOID:0000000010715148
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The gear shift indicator is controlled by ECM and indicates recommended gear shift timing on the combination
meter.
• Upward arrow indication (
↑
): Upshift recommendation
• Downward arrow indication (
↓
): Downshift recommendation
ECM calculates optimal gear shift timing for better fuel consumption, according to the input signal and a gear
ratio. In addition, the recommended gear shift timing is corrected, according to driver’s operation and road
conditions. ECM transmits a gear shift indicator signal to the combination meter via CAN communication line.
The gear shift indicator is deactivated when any of the following conditions is satisfied;
• Shift lever is in neutral position.
• Vehicle is under cruise control (ASCD function) or speed limit (speed limiter function).
• MIL (Malfunction Indicator Lamp) is indicated.
• ABS system or ESP system is operating.
ECO MODE SYSTEM
JSBIA5004GB
ECM-50
< SYSTEM DESCRIPTION >
[MR20DD]
SYSTEM
ECO MODE SYSTEM : System Description
INFOID:0000000010702829
System Diagram
CONTROL
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.
NOTE:
For the details of the ECO mode, refer to
DMS-6, "ECO MODE CONTROL : System Description"
.
SYSTEM DISPLAY FUNCTION
ECO Mode Indicator Lamp
When the ECM receives ECO mode signal from TCM, ECM transmits an ECO mode indicator lamp signal to
the combination meter via CAN communication, and the combination meter illuminates ECO mode indicator
located in itself.
ECO DRIVE NAVIGATOR
ECM transmits an ECO drive navigator signal calculated from the accelerator pedal position and the vehicle
speed to the combination meter via CAN communication.
When the acceleration guide is selected in ECO meter display switching function, the suitable accelerator
position for fuel economy will be displayed. For display, refer to .
DMS-6, "ECO MODE CONTROL : System
.
INTEGRATED CONTROL OF ENGINE, CVT, AND ABS
INTEGRATED CONTROL OF ENGINE, CVT, AND ABS : System Description
INFOID:0000000010702830
Real time communications (signal exchange) among control units (e.g. ECM, CVT, ABS, and combination
meter) via CAN communication optimizes engine torque and lock-up during gear shift and prevents engine
speed from decreasing during deceleration.
EVAPORATIVE EMISSION SYSTEM
JSBIA5010GB
SYSTEM
ECM-51
< SYSTEM DESCRIPTION >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
EVAPORATIVE EMISSION SYSTEM : System Description
INFOID:0000000010702831
System Diagram
System Description
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel-
system.
The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel
system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.
The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the
vapor is stored there when the engine is not operating or when refueling to the fuel tank.
The vapor in the EVAP canister is purged by the air through the purge line to the intake manifold when the
engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the
engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is
proportionally regulated as the air flow increases. EVAP canister purge volume control solenoid valve also
shuts off the vapor purge line during decelerating and idling.
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM : System De-
scription
INFOID:0000000010702832
DESCRIPTION
ECM transmits a target power generation voltage signal received from IPDM E/R to the generator via LIN
communication.
JSBIA0322GB
PBIB3039E
ECM-52
< SYSTEM DESCRIPTION >
[MR20DD]
SYSTEM
The generator includes a self-diagnosis function and transmits a diagnosis signal to ECM via LIN communica-
tion when detecting a malfunction. When ECM receives a diagnosis signal, ECM detects DTC and transmits a
charge warning lamp request signal to the combination meter to turn ON the charge warning lamp.
INFORMATION DISPLAY (COMBINATION METER)
INFORMATION DISPLAY (COMBINATION METER) : ASCD Indicator
INFOID:0000000010702833
ASCD INDICATOR
For detail of ASCD function, refer to
ECM-48, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System
.
INFORMATION DISPLAY (COMBINATION METER) : Engine Oil Pressure Warining
INFOID:0000000010702834
DESIGN/PURPOSE
When engine oil pressure is low, the engine oil pressure warning lamp informs the driver of low oil pressure to
prevent damage to the engine.
BULB CHECK
The bulb turns ON after turning ON the ignition switch (engine stop) and turns OFF after restarting the engine.
OPERATION AT COMBINATION METER CAN COMMUNICATION CUT-OFF OR UNUSUAL SIG-
NAL
For the operation for CAN communications blackout or abnormal signal reception, refer to
.
Symbol
Message
-- Km/h
JSCIA0831ZZ
Symbol
Message
Low Oil Pressure
Stop Vehicle
JPNIA1881ZZ
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