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Nissan Qashqai J11. Manual - part 473

SYSTEM

EC9-47

< SYSTEM DESCRIPTION >

[R9M]

EC9

STOP/START SYSTEM : System Description (CVT models)

INFOID:0000000010479132

SYSTEM DIAGRAM

INPUT/OUTPUT SIGNAL CHART

JSBIA5076GB

EC9-48

< SYSTEM DESCRIPTION >

[R9M]

SYSTEM

Input/

Output

Transmits/Receives component

Signal name

Description

Input

Accelerator pedal position sen-
sor (integrated ECM)

Accelerator pedal position sensor signal

Detects an accelerator pedal posi-
tion.

Brake pedal position switch

Brake pedal position switch signal

Detects the brake pedal is de-
pressed.

Crankshaft position sensor

Crankshaft position sensor signal

Detects an engine speed.

Engine coolant temperature
sensor

Engine coolant temperature sensor signal

Detects an engine coolant tempera-
ture.

Atmospheric pressure sensor
(integrated in ECM)

Atmospheric pressure sensor signal

Detects an atmospheric pressure.

IPDM E/R

CAN communi-
cation

Stop/Start permit signal

Detects the transmission is ready to
operate the stop/start system.

Battery current signal

Detects battery current.

Hood switch signal

Detects engine hood status.

Battery current sensor malfunc-
tion signal

Detects the battery current sensor is
normal.

BCM

CAN communi-
cation

Ignition switch status signal

Detects ignition switch status.

Stop lamp switch signal

Detects an accelerator pedal posi-
tion.

Door switch signal

Detects the status of driver side door.

Stop/Start OFF switch signal

Detects stop/start OFF switch status.

ABS actuator and electric unit
(control unit)

CAN communi-
cation

Vehicle speed signal

Detects vehicle speed.

Brake fluid pressure sensor sig-
nal

Detects brake fluid pressure.

Brake booster pressure sensor
signal

Detects a pressure in brake booster.

ABS operation signal

Detects ABS operation.

ESP operation signal

Detects ESP operation.

Brake hold readiness signal

Detects the brake hold readiness
status judged by the ABS actuator
and electric unit (control unit).

EPS control unit

CAN communi-
cation

EPS torque signal

Detects an operational state of EPS
system.

Stop/Start inhibit signal

Receives the intelligent parking as-
sist status signal sent from the
around view monitor control unit
through the EPS control unit.

A/C auto amp.

CAN communi-
cation

Stop/Start permit signal

Detects the air conditioning system
is ready to operate the stop/start sys-
tem.

Combination meter

CAN communi-
cation

Seat belt buckle switch signal

Detects driver is sitting on the driver
seat.

TCM

CAN communi-
cation

Stop/Start permit signal

Detects the transmission is ready to
operate the stop/start system.

Shift position signal

Detects the transmission is ready to
operate the stop/start system.

G sensor signal

Detects vehicle angularity.

DC/DC converter

LIN communica-
tion

Operation status signal

Detects an operational state of DC/
DC converter.

Diagnosis signal

Detects DC/DC converter malfunc-
tion.

SYSTEM

EC9-49

< SYSTEM DESCRIPTION >

[R9M]

EC9

SYSTEM DESCRIPTION

The stop/start system enables the engine to automatically stop/restart with a simple operation and reduces
unnecessary idling during stoplight or traffic congestion to improve fuel economy, reduce exhaust gas, and
minimize noise.
ECM detects a vehicle condition, engine condition, and driver

′

s operation condition based on signals sent from

each unit and the sensors to comprehensively control the stop/start system.
The operation condition of the stop/start system is indicated by the stop/start indicator lamp on the combina-
tion meter and showing on the information display (dot matrix information display). (Refer to

EC9-24, "Stop/

Start Indicator Lamp"

.) If a malfunction is detected in the stop/start system, the system control is automatically

deactivated and the malfunction is alerted to the driver by blinking the stop/start indicator lamp and showing
the status on the information display (dot matrix information display). When a driver

′

s operation is judged as

dangerous one during the stop/start system operation, the stop/start indicator lamp blinks at a high speed and
the status is shown on the information display (with dot matrix information display). The buzzer mounted on
the combination meter sounds simultaneously to warn the driver of the dangerous operation.
NOTE:
Starting the engine from stop/start system operation is regarded as “Restart”.

Output

Around view monitor control unit

CAN communi-
cation

Stop/Start status signal