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I EVAP control system pressure sensor
I Refueling control valve
I ORVR system leaks
SEF565X
SEF566X
SEF874X
SEF567X
DTC Confirmation Procedure
NHEC0646
CAUTION:
Never remove fuel filler cap during the DTC Confirmation Pro-
cedure.
NOTE:
I If DTC P0455 is displayed with P1448, perform trouble
diagnosis for DTC P1448 first. (See EC-564.)
I Make sure that EVAP hoses are connected to EVAP canis-
ter purge volume control solenoid valve properly.
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.
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 Open engine hood before conducting the following proce-
dures.
WITH CONSULT-II
NHEC0646S01
1) Tighten fuel filler cap securely until ratcheting sound is heard.
2) Turn ignition switch “ON”.
3) Turn ignition switch “OFF” and wait at least 10 seconds.
4) Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.
5) Make sure that the following conditions are met.
COOLAN TEMP/S: 0 - 70°C (32 - 158°F)
INT/A TEMP SE: 0 - 60°C (32 - 140°F)
6) 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.
7) Make sure that “OK” is displayed.
If “NG” is displayed, select “SELF-DIAG RESULTS” mode and
make sure that “EVAP GROSS LEAK [P0455]” is displayed. If
it is displayed, refer to “Diagnostic Procedure”, EC-404.
If P0440 is displayed, perform “Diagnostic Procedure” for DTC
P0440.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0455 EVAP CONTROL SYSTEM (GROSS LEAK)
Possible Cause (Cont’d)
EC-403
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