Nissan Juke F15. Manual — part 312
SYSTEM
EC-61
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
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ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE : System Dia-
gram
INFOID:0000000012197678
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE : System De-
scription
INFOID:0000000012197679
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
• The engine protection control at low engine oil pressure warns the driver of a decrease in engine oil pres-
sure by the oil pressure warning lamp a before the engine becomes damaged.
• When detecting a decrease in engine oil pressure at an engine speed less than 1,000 rpm, ECM transmits
an oil pressure warning lamp signal to the combination meter.The combination meter turns ON the oil pres-
sure warning lamp, according to the signal.
1.
Turbocharger
2.
Boost control actuator
3.
Turbocharger boost control solenoid
valve
4.
Recirculation valve
5.
Turbocharger boost sensor
(with intake air temperature sensor 2)
: Vehicle front
JPBIA4717ZZ
JPBIA4922GB
Sensor
Input signal to ECM
ECM function
Actuator
Engine oil pressure sensor
Engine pressure
Engine protection control
• Oil pressure warning lamp
signal
• FUel cut control
Combination meter
• Oil pressure warning lamp
Crankshaft position sensor
(POS)
Engine speed
Engine oil temperature sensor
Engine oil temperature
EC-62
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
SYSTEM
*: When detecting a normal engine oil pressure, ECM turns OFF the oil pressure warning lamp.
FUEL FILLER CAP WARNING SYSTEM
FUEL FILLER CAP WARNING SYSTEM : System Diagram
INFOID:0000000012197680
FUEL FILLER CAP WARNING SYSTEM : System Description
INFOID:0000000012197681
INPUT/OUTPUT SIGNAL CHART
Input
*: This signal is sent to the ECM via the CAN communication line.
Output
*: This signal is sent to the combination meter via the CAN communication line.
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and
malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination
meter.
ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled
state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter
via CAN communication.
When receiving the signal, the combination meter turns ON the fuel filler cap warning display.
CAUTION:
Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
Decrease in engine oil
pressure
Engine speed
Combination meter
Oil pressure warning lamp
Detection
Less than 1,000 rpm
ON*
1,000 rpm or more
ON
Unit/Sensor
Input signal to ECM
ECM function
EVAP control system pressure sensor
Pressure in purge line
Fuel filler cap warning control
Combination meter
Fuel level
Fuel filler cap warning reset signal
*
JSBIA0797GB
Unit
Output signal
Actuator
ECM
Fuel filler cap warning display signal
*
Combination meter
SYSTEM
EC-63
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
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The fuel filler cap warning lamp tunes OFF, according to any condition listed below:
• Reset operation is performed by operating the meter control switch on the combination meter. Refer to
20, "Switch Name and Function"
- When the reset operation is performed, the combination meter transmits a fuel filler cap warning reset signal
to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display
OFF) to the combination meter via CAN communication. When receiving the signal, the combination meter
turns OFF the fuel filler cap warning display.
• EVAP leak diagnosis result is normal.
• Fuel refilled.
• DTC erased by using CONSULT.
NOTE:
MIL turns ON if a malfunction is detected in leak diagnosis results again at the trip after the fuel filler cap warn-
ing display turns ON/OFF.
AIR CONDITIONING CUT CONTROL
AIR CONDITIONING CUT CONTROL : System Diagram
INFOID:0000000012197682
AIR CONDITIONING CUT CONTROL : System Description
INFOID:0000000012197683
INPUT/OUTPUT SIGNAL CHART
JSBIA0320GB
EC-64
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
SYSTEM
*: 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.
COOLING FAN CONTROL
COOLING FAN CONTROL : System Diagram
INFOID:0000000012197684
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed
*
Air conditioner
cut control
IPDM E/R
↓
Air conditioner relay
↓
Compressor
Camshaft position sensor (PHASE)
Engine coolant temperature sensor
Engine coolant temperature
Accelerator pedal position sensor
Accelerator pedal position
Battery
Battery voltage
*
Refrigerant pressure sensor
Refrigerant pressure
EPS control unit
CAN commu-
nication
EPS operation signal
Combination meter
CAN commu-
nication
Vehicle speed signal
BCM
CAN commu-
nication
A/C ON signal
JPBIA4759GB
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