Nissan Qashqai (2007-2010). Manual — part 444

IDLE SPEED CONTROL

EC-1295

< FUNCTION DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

EGR volume control valve

2.

Glow plug

1.

ASCD steering switch

2.

RESUME/ACCELERATE switch

3.

SET/COAST switch

4.

CANCEL switch

5.

MAIN switch

1.

Accelerator pedal position sensor

2.

Stop lamp switch

3.

Brake pedal

1.

Fuel rail pressure sensor

2.

Glow relay

3.

ECM

A.

View with battery removed

JMBIA0423ZZ

JMBIA0424ZZ

JMBIA0425ZZ

JMBIA0426ZZ

EC-1296

< FUNCTION DIAGNOSIS >

[K9K]

IDLE SPEED CONTROL

1.

Electric throttle control actuator

2.

Clutch switch

3.

Clutch pedal

1.

Body ground E17

JMBIA0427ZZ

JMBIA0428ZZ

ENGINE TORQUE CONTROL

EC-1297

< FUNCTION DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

ENGINE TORQUE CONTROL

System Description

INFOID:0000000001080654

The torque structure is the system which translates the driver's request into a torque supplied by the engine. It
is required for certain functions such as the electronic stability program (ESP), the automatic gearbox or the
sequentialgearbox if fitted).
Each inter-system (ESP, automatic gearbox, sequential gearbox) sends the ECM a torque request viathe CAN
communication. The computer arbitrates between the inter-system torque requests and the driver's request
(comprised of the accelerator pedal or the cruise control/speed limiter function). The result of the arbitration
gives thetorque setpoint.
From this torque setpoint, the computer determines the quantity of fuel to be injected (injection duration and
numberof injections) and the amount of air required (turbocharging pressure and EGR rate) so that the engine
is able toprovide the torque required in the best possible conditions (in terms of smooth running performance,
pollutantemissions, etc.).

Component Parts Location

INFOID:0000000001080655

JMBIA0429ZZ

EC-1298

< FUNCTION DIAGNOSIS >

[K9K]

ENGINE TORQUE CONTROL

1.

Fuel injector

2.

Glow plug

3.

Fuel rail pressure sensor

4.

Crankshaft position sensor

5.

Turbocharger boost sensor

6.

Engine coolant temperature sensor

7.

Glow relay

8.

Turbocharger boost control solenoid
valve

9.

ECM

10. Mass air flow sensor (with intake air

temperature sensor)

11.

Electric throttle control actuator

12. Camshaft position sensor

13. EGR volume control valve

: Vehicle front

1.

Mass air flow sensor (with intake air
temperature sensor)

2.

Engine coolant temperature sensor

1.

Camshaft Position Sensor

2.

Fuel injector

: Vehicle front

1.

Crankshaft position sensor

2.

Turbocharger boost control solenoid
valve

JMBIA0419ZZ

JMBIA0420ZZ

JMBIA0421ZZ