Nissan Maxima. Instruction — part 467
EC-352
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
Description
INFOID:0000000010095032
The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases.
DTC Logic
INFOID:0000000010095033
DTC DETECTION LOGIC
Regarding Wiring Diagram information, refer to
.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing 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. Turn ignition switch OFF and wait at least 10 seconds.
PBIB3370E
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0453
EVAP control system
pressure sensor high in-
put
An excessively high voltage from the sensor is
sent to ECM.
• Harness or connectors
(EVAP control system pressure sensor
circuit is open or shorted.)
[Crankshaft position (CKP) sensor (POS)
circuit is shorted.]
[Accelerator pedal position (APP) sensor
2 circuit is shorted.]
(Refrigerant pressure sensor circuit is
shorted.)
• EVAP control system pressure sensor
• CKP sensor (POS)
• APP sensor
• Refrigerant pressure sensor
• EVAP canister vent control valve
• EVAP canister
• Drain filter
• Rubber hose from EVAP canister vent
control valve to drain filter
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-353
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
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5. Turn ignition switch ON.
6. Select “DATA MONITOR” mode with CONSULT.
7. Check that “FUEL T/TMP SE” is more than 0
°C (32°F).
8. Start engine and wait at least 20 seconds.
9. 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.
3. Check that the voltage is less than 4.2 V.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON.
6. Turn ignition switch OFF and wait at least 10 seconds.
7. Start engine and wait at least 20 seconds.
8. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010095034
Regarding Wiring Diagram information, refer to
.
1.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in
.
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 that water is not inside connectors.
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 sen-
sor 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.
ECM
Connector
+
–
Terminal
Terminal
E10
95
(Fuel tank temperature sensor signal)
104
(Sensor ground)
JMBIA1872ZZ
EVAP control system pressure sensor
Ground
Voltage (V)
Connector
Terminal
B41
3
Ground
Approx. 5
PBIB0138E
EC-354
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
2. Disconnect ECM harness connector.
3. Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B10, E29
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit.
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.
• Crankshaft position sensor (POS) (Refer to
EC-299, "Component Inspection"
• Refrigerant pressure sensor (Refer to
.)
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace malfunctioning components.
8.
CHECK APP SENSOR
EC-469, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> GO TO 9.
9.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly. Refer to
ACC-3, "Removal and Installation"
2. Refer to
EC-469, "Special Repair Requirement"
>> INSPECTION END
10.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
EVAP control system pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B41
3
E10
91
Existed
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F13
72
Refrigerant pressure sensor
E219
1
76
CKP sensor (POS)
F30
1
E10
87
APP sensor
E40
6
91
EVAP control system pressure sensor
B41
3
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-355
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
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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 B10, E29
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit, 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 B10, E29
• Harness for open or short between EVAP control system pressure sensor and ECM
>> Repair open circuit, 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
EC-335, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> Replace EVAP canister vent control valve. Refer to
FL-16, "Removal and Installation"
.
16.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-356, "Component Inspection"
Is the inspection result normal?
EVAP control system pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B41
1
E10
96
Existed
EVAP control system pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
B41
2
E10
86
Existed
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