2009 NISSAN TIIDA e control

P0448 EVAP CANISTER VENT CONTROL VALVE
EC-309
< COMPONENT DIAGNOSIS >
[HR16DE] C
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Is the inspection result normal? YES >> GO TO 2.
NO >> Clean rubber tube using an air blower. 2.
CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to EC-310, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. 3.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1. Remove EVAP canister with EVAP canister vent c ontrol 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 4.
NO >> GO TO 6. 4.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EV AP 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 6.
NO >> GO TO 5. 5.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and vehi cle frame for clogging or poor connection
>> Repair hose or replace EVAP canister. 6.
CHECK EVAP CONTRO L SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check connectors for water.
Is the inspection result normal? YES >> GO TO 7.
NO >> Replace EVAP control system pressure sensor. 7.
CHECK EVAP CONTROL SYS TEM PRESSURE SENSOR
Refer to EC-314, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace EVAP control system pressure sensor. 8.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " . PBIB1213E
Water should not exist.

EC-310< COMPONENT DIAGNOSIS >
[HR16DE]
P0448 EVAP CANISTER VENT CONTROL VALVE
>> INSPECTION END
Component Inspection INFOID:00000000047801901.
CHECK EVAP CANISTER VENT CONTROL VALVE-I
1. Turn ignition switch OFF.
2. Remove EVAP canister vent control valve from EVAP canister.
3. Check portion (A) of EVAP canister vent control valve for being
rusted.
Is it rusted? YES >> Replace EVAP canister vent control valve.
NO >> GO TO 2. 2.
CHECK EVAP CANISTER VENT CONTROL VALVE-II
With CONSULT-III
1. Reconnect harness connectors disconnected.
2. Turn ignition switch ON.
3. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode.
4. Check air passage continuity and operation delay time. Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. 3.
CHECK EVAP CANISTER VE NT CONTROL VALVE-III
With CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2. Perform “VENT CONTROL/V” in “ACTIVE TEST” mode. JMBIA0168ZZ
VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed JMBIA0169ZZ

P0448 EVAP CANISTER VENT CONTROL VALVE
EC-311
< COMPONENT DIAGNOSIS >
[HR16DE] C
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3. Check air passage continuity and operation delay time.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Without CONSULT-III
1. Clean the air passage [portion (A) to (B)] of EVAP canister vent
control valve using an air blower.
2. Check air passage continuity and operation delay time under the
following conditions.
Make sure new O-ring is installed properly.
Operation takes less than 1 second.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP canister vent control valve. VENT CONT/V condition Air passage continuity between (A) and (B)
ON Not existed
OFF Existed
Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed JMBIA0169ZZ

EC
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YES >> GO TO 2.
NO >> Repair or replace ground connection. YES >> GO TO 3.
NO >> Repair or replace harness connector. YES >> GO TO 8.
NO >> GO TO 4. YES >> GO TO 5.
NO >> Repair short to ground or short to power in harness or connectors. Component Inspection " .)
• Refrigerant pressure sensor (Refer to EC-458, " Diagnosis Procedure " .)
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace malfunctioning component. Component Inspection " .
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 7. Special Repair Requirement " .
Water should not exist.
EVAP control system pressure sensor Ground Voltage
Connector Terminal
B104 3 Ground Approx. 5 V

Component Inspection " .
Is the inspection result normal? YES >> GO TO 9.
NO >> Replace EVAP control system pressure sensor. Diagnosis Procedure " .
>> INSPECTION END
Component Inspection INFOID:0000000004780194YES >> INSPECTION END
NO >> Replace EVAP control system pressure sensor ECM Condition
[Applied vacuum kPa
(kg/cm 2
, psi) Voltage
Connector Terminal
F11 42
(EVAP control system
pressure sensor signal) Not applied 1.8 - 4.8 V
-26.7 (-0.272, -3.87) 2.1 to 2.5 V lower
than above value

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-315
< COMPONENT DIAGNOSIS >
[HR16DE] C
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P0452 EVAP CONTROL SYST
EM PRESSURE SENSOR
Description INFOID:0000000004780195
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:0000000004780196
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
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-III
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 with CONSULT-III.
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. PBIB3370E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0452 EVAP control system
pressure sensor low input An excessively low voltage from the sensor is
sent to ECM. • Harness or connectors
(EVAP control system pressure sensor
circuit is open or shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.)
(Accelerator pedal position sensor circuit
is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
• EVAP control system pressure sensor
• Crankshaft position sensor (POS)
• Accelerator pedal position sensor
• Refrigerant pressure sensor

EC-318< COMPONENT DIAGNOSIS >
[HR16DE]
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
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 SYST EM PRESSURE SENSOR POWER SUPPLY CIRCUIT-I
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 SYST EM 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.
Is the inspection result normal? YES >> GO TO 6.
NO >> GO TO 5. 5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors B102, M13
• Harness connectors M69, E7
• Harness connectors E8, F8
• 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. Water should not exist.
EVAP control system pressure sensor Ground Voltage
Connector Terminal
B104 3 Ground Approx. 5 V PBIB0138E
EVAP control system pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
B104 3 F11 76 Existed

EC
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Is the inspection result normal? YES >> GO TO 7.
NO >> Repair short to ground or short to power in harness or connectors. Component Inspection " .)
• Refrigerant pressure sensor (Refer to EC-458, " Diagnosis Procedure " .)
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace malfunctioning component. Component Inspection " .
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 9. Special Repair Requirement " .
>> INSPECTION END
10. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN ANDYES >> GO TO 12.
NO >> GO TO 11. EVAP control system pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
B104 1 F11 51 Existed