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
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A
EC
N
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• 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
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