Nissan Qashqai J11. Manual - part 268

SYSTEM

ECM-49

< SYSTEM DESCRIPTION >

[MR20DD]

ECM

(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

Description"

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]

ECM

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

Description"

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