Nissan Cube. Manual — part 350
EC-286
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
1.
Start engine and warm it up to normal operating temperature.
2.
Set voltmeter probes to ECM harness connector and ground as per the following.
3.
Make sure that the voltage is less than 4.2 V.
4.
Turn ignition switch OFF and wait at least 10 seconds.
5.
Start engine and wait at least 20 seconds.
6.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009947399
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E38. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK CONNECTOR
1.
Disconnect EVAP control system pressure sensor harness connector.
2.
Check sensor harness connector for water.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace harness connector.
3.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check the voltage between EVAP control system pressure sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 4.
4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.
ECM
Ground
Connector
Terminal
F8
43
(Fuel tank temperature sensor signal)
Ground
Water should not exist.
EVAP control system pressure sen-
sor
Ground
Voltage
Connector
Terminal
B21
3
Ground
Approx. 5 V
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-287
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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EC
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Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK SENSOR POWER SUPPLY CIRCUIT
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair short to ground or short to power in harness or connectors.
7.
CHECK COMPONENTS
Check the following.
• Battery current sensor (Refer to
EC-337, "Component Inspection"
.)
• Crankshaft position sensor (POS) (Refer to
EC-244, "Component Inspection"
• Refrigerant pressure sensor (Refer to
.)
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace malfunctioning component.
8.
CHECK APP SENSOR
EC-385, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 9.
9.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1.
Replace accelerator pedal assembly
2.
EC-385, "Special Repair Requirement"
>> INSPECTION END
10.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND
EVAP control system pressure sen-
sor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B21
3
F8
76
Existed
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F8
74
Refrigerant pressure sensor
E49
3
75
CKP sensor (POS)
F20
1
76
EVAP control system pressure sen-
sor
B21
3
77
Battery current sensor
F53
1
E16
102
APP sensor
E110
5
EC-288
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 11.
11.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
12.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND
SHORT
1.
Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> GO TO 13.
13.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
14.
CHECK RUBBER TUBE
1.
Disconnect rubber tube connected to EVAP canister vent control valve.
2.
Check the rubber tube for clogging.
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Clean the rubber tube using an air blower, repair or replace rubber tube.
15.
CHECK EVAP CANISTER VENT CONTROL VALVE
EVAP control system pressure sen-
sor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B21
1
F8
51
Existed
EVAP control system pressure sen-
sor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B21
2
F8
42
Existed
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-289
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
C
D
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F
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A
EC
N
P
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EC-270, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Replace EVAP canister vent control valve.
16.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-289, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Replace EVAP control system pressure sensor.
17.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1.
Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
2.
Check if water will drain from the EVAP canister.
Does water drain from EVAP canister?
YES
>> GO TO 18.
NO
>> GO TO 20.
18.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 1.9 kg (4.2 lb).
Is the inspection result normal?
YES
>> GO TO 20.
NO
>> GO TO 19.
19.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
>> Repair hose or replace EVAP canister. Refer to
20.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000009947400
1.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
1.
Turn ignition switch OFF.
2.
Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
3.
Install a vacuum pump to EVAP control system pressure sensor.
4.
Turn ignition switch ON and check output voltage between ECM harness connector and ground under the
following conditions.
PBIB1213E
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