2009 NISSAN LATIO air condition

Diagnosis Procedure " .
>> INSPECTION END
Component Inspection INFOID:0000000004780178YES >> INSPECTION END
NO >> Replace EVAP canister purge volume control solenoid valveCondition
(PURG VOL C/V value) Air passage continuity
between (A) and (B)
100% Existed 0% Not existed

EC-300< COMPONENT DIAGNOSIS >
[HR16DE]
P0444, P0445 EVAP CANISTER P
URGE VOLUME CONTROL SOLENOID
VALVE
>> INSPECTION END
Component Inspection INFOID:00000000047801821.
CHECK EVAP CANISTER PURGE VO LUME CONTROL SOLENOID VALVE
With CONSULT-III
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4. Turn ignition switch ON.
5. Select “PURG VOL CONT/V” in “A CTIVE TEST” mode with CONSULT-III.
6. Touch “Qd” and “Qu” on CONSULT-III screen to adjust “PURG
VOL C/V” opening and check air passage continuity of EVAP
canister purge volume control solenoid valve under the following
conditions.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4. Check air passage continuity of EVAP canister purge volume control solenoid valve under the following conditions.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP canister purge volume control solenoid valveCondition
(PURG VOL C/V value) Air passage continuity
between (A) and (B)
100% Existed 0% Not existed PBIA9668J
Condition
Air passage continuity
between (A) and (B)
12 V direct current supply between
terminals 1 and 2 Existed
No supply Not existed PBIA9560J

EC
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Operation takes less than 1 second.
Is the inspection result normal? YES >> GO TO 3.
NO >> Replace EVAP canister vent control valve. YES >> INSPECTION END
NO >> Replace EVAP canister vent control valve. Condition Air passage continuity between (A) and (B)
12 V direct current supply between
terminals (1) and (2) Not existed
OFF Existed 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

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
D E
F
G H
I
J
K L
M A EC
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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-320< COMPONENT DIAGNOSIS >
[HR16DE]
P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR
12. CHECK EVAP CONTROL SYSTEM PRESSURE SEN SOR INPUT SIGNAL CIRCUIT FOR OPEN ANDSHORT
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 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. 14.
CHECK EVAP CONTROL SYS TEM PRESSURE SENSOR
Refer to EC-320, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 15.
NO >> Replace EVAP control system pressure sensor. 15.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
>> INSPECTION END
Component Inspection INFOID:00000000047804511.
CHECK EVAP CONTROL SY STEM PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Remove EVAP control system pressure sensor wit h 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? EVAP control system pressure sensor ECM
Continuity
Connector Terminal Connector Terminal
B104 2 F11 42 Existed 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 PBIB3314E

EC-328< COMPONENT DIAGNOSIS >
[HR16DE]
P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR 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 15.
NO >> GO TO 14. 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. 20.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
>> INSPECTION END
Component Inspection INFOID:00000000047804521.
CHECK EVAP CONTROL SY STEM PRESSURE SENSOR
1. Turn ignition switch OFF.
2. Remove EVAP control system pressure sensor wit h 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 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 PBIB3314E

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P0506 ISC SYSTEM
Description INFOID:0000000004780224
The ECM controls the engine idle speed to a specified leve l through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is t he lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
DTC Logic INFOID:0000000004780225
DTC DETECTION LOGIC NOTE:
If DTC P0506 is displayed with ot her DTC, first perform the trouble diagnosis for the other DTC.
DTC CONFIRMATION PROCEDURE IDLE AIR VOLUME LEARNING :
Special Repair Requirement " , before conducting DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10 °C(14 °F).
>> GO TO 2. YES >> Go to
EC-349, " Diagnosis Procedure " .
NO >> INSPECTION END
Diagnosis Procedure INFOID:0000000004780226YES >> Discover air leak location and repair.
NO >> GO TO 2.