Nissan Cube. Instruction — part 384
EC-422
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
3.
CHECK REFUELING EVAP VAPOR CUT VALVE
Without CONSULT
1.
Remove fuel tank. Refer to
FL-9, "Removal and Installation"
2.
Drain fuel from the tank as per the following:
-
Remove fuel gauge retainer.
-
Drain fuel from the tank using a handy pump into a fuel container.
3.
Check refueling EVAP vapor cut valve for being stuck to close as per the following.
Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4.
Check refueling EVAP vapor cut valve for being stuck to open as per the following.
-
Connect vacuum pump to hose end.
-
Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.
-
Put fuel tank upside down.
-
Apply vacuum pressure to hose end [
−
13.3 kPa (
−
0.136 kg/cm
3
,
−
1.93 psi)] with fuel gauge retainer
remaining open and check that the pressure is applicable.
1.
Filler tube
2.
Recirculation line
3.
EVAP/ORVR line
4.
Vacuum/pressure handy pump
5.
Fuel tank
JMBIA2315ZZ
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-423
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
C
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EC
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace refueling EVAP vapor cut valve with fuel tank.
Component Inspection (Drain filter)
INFOID:0000000009947571
1.
CHECK DRAIN FILTER
1.
Check visually for insect nests in the drain filter air inlet.
2.
Check visually for cracks or flaws in the appearance.
3.
Check visually for cracks or flaws in the hose.
4.
Blow air into port A and check that it flows freely out of port B.
5.
Block port B.
6.
Blow air into port A and check that there is no leakage.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace drain filter.
1.
Filler tube
2.
Recirculation line
3.
EVAP/ORVR line
4.
Vacuum/pressure handy pump
5.
Fuel tank
JMBIA2315ZZ
PBIB3641E
EC-424
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
POSITIVE CRANKCASE VENTILATION
POSITIVE CRANKCASE VENTILATION
Description
INFOID:0000000009947572
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold.
During partial throttle operation of the engine, the intake manifold
sucks the blow-by gas through the PCV valve.
Normally, the capacity of the valve is sufficient to handle any blow-by
and a small amount of ventilating air.
The ventilating air is drawn from the air inlet tubes into the crank-
case. In this process the air passes through the hose connecting air
inlet tubes to rocker cover.
Under full-throttle condition, the manifold vacuum is insufficient to
draw the blow-by flow through the valve. The flow goes through the
hose connection in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all conditions.
Component Inspection
INFOID:0000000009947573
1.
CHECK PCV VALVE
With engine running at idle, remove PCV valve from rocker cover
(Refer to
). A properly working valve makes
a hissing noise as air passes through it. A strong vacuum should be
felt immediately when a finger is placed over valve inlet.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace PCV valve. Refer to
.
PBIB2962E
PBIB1588E
PBIB1589E
REFRIGERANT PRESSURE SENSOR
EC-425
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
C
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REFRIGERANT PRESSURE SENSOR
Description
INFOID:0000000009947574
The refrigerant pressure sensor is installed at the condenser of the air conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressure to voltage. The voltage signal is sent
to ECM, and ECM controls cooling fan system.
Component Function Check
INFOID:0000000009947575
1.
CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Turn A/C switch and blower fan switch ON.
3.
Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Go to
Diagnosis Procedure
INFOID:0000000009947576
1.
CHECK GROUND CONNECTION
1.
Turn A/C switch and blower fan switch OFF.
2.
Stop engine.
3.
Turn ignition switch OFF.
4.
Check ground connection E38. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect refrigerant pressure sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
PBIB2657E
ECM
Ground
Voltage
Connector
Terminal
F8
41
(Refrigerant pressure sensor sig-
nal)
Ground
1.0 - 4.0V
Refrigerant pressure sensor
Ground
Voltage
Connector
Terminal
E49
3
Ground
Approx. 5 V
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