Nissan Cube. Manual - part 293

EC-58

< SYSTEM DESCRIPTION >

[MR18DE]

AIR CONDITIONING CUT CONTROL

AIR CONDITIONING CUT CONTROL

System Diagram

INFOID:0000000009947206

System Description

INFOID:0000000009947207

INPUT/OUTPUT SIGNAL CHART

*1: This signal is sent to the ECM via the 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.

JMBIA1322GB

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

Power steering operation

ABS actuator and electric unit (control unit)

Vehicle speed*

1

BCM

Air conditioner ON signal*

1

AIR CONDITIONING CUT CONTROL

EC-59

< SYSTEM DESCRIPTION >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.

Component Parts Location

INFOID:0000000009947208

1.

Ignition coil (with power transistor) 
and spark plug

2.

Intake valve timing control solenoid 
valve

3.

Fuel injector

4.

Refrigerant pressure sensor

5.

Knock sensor

6.

Camshaft position sensor (PHASE)

7.

Engine coolant temperature sensor

8.

Cooling fan motor

9.

Battery current sensor

10. IPDM E/R

11.

ECM

12. Mass air flow sensor (with intake air 

temperature sensor)

13. Electric throttle control actuator

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

14. EVAP canister purge volume control 

solenoid valve

JMBIA2296ZZ

EC-60

< SYSTEM DESCRIPTION >

[MR18DE]

AIR CONDITIONING CUT CONTROL

1.

ECM

2.

IPDM E/R

3.

Fuel pump fuse (15 A)

Vehicle front

1.

Electric throttle control actuator
(with built-in position sensor, throttle 
control motor)

2.

Throttle valve

Vehicle front

1.

Battery current sensor

2.

Mass air flow sensor
(with Intake air temperature sensor)

Vehicle front

JMBIA2297ZZ

JMBIA2298ZZ

JMBIA2299ZZ

JMBIA2300ZZ

AIR CONDITIONING CUT CONTROL

EC-61

< SYSTEM DESCRIPTION >

[MR18DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

1.

Camshaft position sensor (PHASE)

2.

Engine coolant temperature sensor

Vehicle front

1.

Air fuel ratio (A/F) sensor 1

2.

Three way catalyst (Manifold)

3.

Heated oxygen sensor 2

4.

Three way catalyst (under floor)

5.

Muffler

Vehicle front

1.

Air fuel ratio (A/F) sensor 1 harness 
connector

2.

Air fuel ratio (A/F) sensor 1

3.

Heated oxygen sensor 2

4.

Heated oxygen sensor 2 harness 
connector

Vehicle front

1.

PCV valve

2.

Ignition coil (with power transistor) 
and spark plug

3.

Fuel injector

Vehicle front

JMBIA2192ZZ

JMBIA2301ZZ

JMBIA2302ZZ