Nissan Qashqai (2007-2010). Manual — part 287

ELECTRIC IGNITION SYSTEM

EC-667

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

Refrigerant pressure sensor

2.

Resister

3.

Cooling fan motor

1.

Intake valve timing control solenoid
valve

2.

Knock sensor

1.

Crankshaft position sensor (POS)

2.

Ground

1.

ASCD clutch switch

2.

Data link connector

JMBIA0445ZZ

JMBIA0446ZZ

JMBIA0347ZZ

JMBIA0348ZZ

EC-668

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

ELECTRIC IGNITION SYSTEM

Component Description

INFOID:0000000000936615

1.

Stop lamp switch

2.

ASCD brake switch

3.

Accelerator pedal position sensor

1.

ASDC steering switch

2.

CANSEL switch

3.

RESUME/ACCCELERATE switch

4.

SET/COAST switch

5.

MAIN SWITCH

6.

1.

Fuel level sensor unit and fuel pump
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

JMBIA0349ZZ

JMBIA0346ZZ

Component

Reference

Accelerator pedal position sensor

EC-909, "Description"

Camshaft position sensor (PHASE)

EC-813, "Description"

Crankshaft position sensor (POS)

EC-809, "Description"

Engine coolant temperature sensor

EC-754, "Description"

Ignition signal

EC-929, "Description"

Knock sensor

EC-807, "Description"

Mass air flow sensor

EC-746, "Description"

Park/neutral position (PNP) switch

EC-892, "Description"

Throttle position sensor

EC-757, "Description"

Vehicle speed sensor

EC-825, "Description"

AIR CONDITIONING CUT CONTROL

EC-669

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

AIR CONDITIONING CUT CONTROL

System Diagram

INFOID:0000000000936616

System Description

INFOID:0000000000936617

INPUT/OUTPUT SIGNAL CHART

*1: This signal is sent to the ECM through CAN communication line.

*2: ECM determines the start signal status by the signals of engine speed and battery voltage.

SYSTEM DESCRIPTION

This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.

JMBIA0449GB

Sensor

Input Signal to ECM

ECM function

Actuator

Air conditioner switch*

1

Air conditioner ON signal

Air conditioner
cut control

IPDM E/R

↓

Air conditioner relay

↓

Compressor

Accelerator pedal position sensor

Accelerator pedal position

Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)

Engine speed*

2

Engine coolant temperature sensor

Engine coolant temperature

Battery

Battery voltage*

2

Refrigerant pressure sensor

Refrigerant pressure

EPS control unit*

1

Power steering operation

Combination meter*

1

Vehicle speed

EC-670

< FUNCTION DIAGNOSIS >

[MR20DE (WITH EURO-OBD)]

AIR CONDITIONING CUT CONTROL

Component Parts Location

INFOID:0000000001093564

1.

Ignition coil (with power transistor)
and spark plug

2.

PCV valve

3.

Refrigerant pressure sensor

4.

Fuel injector

5.

Knock sensor

6.

Cooling fan motor

7.

Camshaft position sensor (PHASE)

8.

Engine coolant temperature sensor

9.

IPDM E/R

10. ECM

11.

Mass air flow sensor (with intake
temperature sensor)

12. Electric throttle control actuator

(with built in throttle position sensor
and throttle control motor)

13. EVAP canister purge volume control

solenoid valve

1.

ECM

2.

IPDM E/R

3.

Fuel pump fuse (15A)

JMBIA0338ZZ

JMBIA0340ZZ