Nissan Rogue. Instruction — part 516
EC-332
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
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 to power.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts
4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT
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 power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR SIGNAL CIRCUIT
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 to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
6.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to
EC-333, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-22, "Removal and Installation"
.
7.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
+
−
Continuity
EVAP control system pres-
sure sensor
ECM
Connector
Terminal
Connector
Terminal
B111
3
E16
113
Existed
+
−
Continuity
EVAP control system pres-
sure sensor
ECM
Connector
Terminal
Connector
Terminal
B111
1
E16
124
Existed
+
−
Continuity
EVAP control system pres-
sure sensor
ECM
Connector
Terminal
Connector
Terminal
B111
2
E16
114
Existed
P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-333
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
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>> INSPECTION END
Component Inspection
INFOID:0000000011278044
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.
CAUTION:
• Always calibrate the vacuum pump gauge when using it.
• Do not apply below -93.3 kPa (-0.952 kg/cm
2
, -13.53 psi) or pressure over 101.3 kPa (1.033 kg/
cm
2
, 14.69 psi).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-22, "Removal and Installation"
.
ECM
Condition
[Applied vacuum kPa (kg/cm
2
, psi)]
Voltage
Connector
+
−
Terminal
E16
114
124
Not applied
0.5 - 4.6 V
-26.7 (-0.272, -3.87)
2.1 to 2.5 V lower than above value
EC-334
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
DTC Description
INFOID:0000000011278045
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (EVAP control system pressure sensor circuit is shorted.)
• EVAP control system pressure sensor
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Always perform test at a temperature of 5
°C (41°F) or more.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
5. Make sure that “FUEL T/TMP SE” indication is more than 0
°C (32°F).
6. Start engine and wait at least 20 seconds.
7. Check 1st trip DTC.
With GST
1. Start engine and warm it up to normal operating temperature.
2. Set voltmeter probes to ECM harness connector terminals 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
>> Proceed to
.
NO
>> INSPECTION END
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0452
EVAP SYS PRES SEN
(Evaporative emission system pressure
sensor/switch low)
An excessively low voltage from the sensor is sent to ECM.
ECM
Voltage
Connector
+
−
Terminal
E16
114
124
Less than 4.2 V
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-335
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
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Diagnosis Procedure
INFOID:0000000011278046
1.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Turn ignition switch OFF.
2. Disconnect EVAP control system pressure sensor harness connector.
3. Check sensor harness connector for water.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness connector.
2.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY
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 4.
NO
>> GO TO 3.
3.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT
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 to power.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts
4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT
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 power.
Water should not exist.
+
−
Voltage
(Approx.)
EVAP control system pressure sen-
sor
Connector
Terminal
B111
3
Ground
5 V
+
−
Continuity
EVAP control system pres-
sure sensor
ECM
Connector
Terminal
Connector
Terminal
B111
3
E16
113
Existed
+
−
Continuity
EVAP control system pres-
sure sensor
ECM
Connector
Terminal
Connector
Terminal
B111
1
E16
124
Existed
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