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I Water separator
I EVAP canister is saturated with water.
I EVAP control system pressure sensor
I Fuel level sensor and the circuit
I Refueling control valve
I ORVR system leaks
SEF565X
SEF566X
SEF874X
SEF567X
DTC Confirmation Procedure
NHEC0219
NOTE:
I If DTC P0440 or P1440 is displayed with P1448, perform
trouble diagnosis for DTC P1448 first. (See EC-564.)
I If “DTC Confirmation Procedure” has been previously
conducted, always turn ignition switch “OFF” and wait at least
10 seconds before conducting the next test.
I Make sure that EVAP hoses are connected to EVAP canis-
ter purge volume control solenoid valve properly.
TESTING CONDITION:
I Perform “DTC WORK SUPPORT” when the fuel level is
between 1/4 to 3/4 full and vehicle is placed on flat level
surface.
I Always perform test at a temperature of 0 to 30°C (32 to
86°F).
WITH CONSULT-II
NHEC0219S01
1) Turn ignition switch “ON”.
2) Turn ignition switch “OFF” and wait at least 10 seconds.
3) Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.
4) Make sure that the following conditions are met.
COOLAN TEMP/S: 0 - 70°C (32 - 158°F)
INT/A TEMP SE: 0 - 30°C (32 - 86°F)
5) Select “EVAP SML LEAK P0440/P1440” of “EVAPORATIVE
SYSTEM” in “DTC WORK SUPPORT” mode with CONSULT-
II.
Follow the instruction displayed.
NOTE:
If the engine speed cannot be maintained within the range dis-
played on the CONSULT-II screen, go to “Basic Inspection”,
EC-109.
6) Make sure that “OK” is displayed.
If “NG” is displayed, refer to “Diagnostic Procedure”, EC-364.
WITH GST
NHEC0219S02
NOTE:
Be sure to read the explanation of “Driving Pattern” on EC-75
before driving vehicle.
1) Start engine.
2) Drive vehicle according to “Driving Pattern”, EC-75.
3) Stop vehicle.
4) Select “MODE 1” with GST.
I If SRT of EVAP system is not set yet, go to the following step.
I If SRT of EVAP system is set, the result will be OK.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0440 EVAP CONTROL SYSTEM (SMALL LEAK) (NEGATIVE PRESSURE)
Possible Cause (Cont’d)
EC-363
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