Suzuki XL7 2007 Service Manual page 228

1A-123 Engine General Information and Diagnosis:
Conditions for Running the DTC
• Before the engine control module (ECM) can report
DTC P0455 failed, DTCs P0443, P0451, P0452,
P0453, P0458, and P0459 must run and pass.
• DTCs P0100, P0101, P0102, P0103, P0111, P0112,
P0113, P116, P0117, P0118, P0119, P0125, P0443,
P0446, P0449, P0451, P0452, P0453, P0458, P0459,
P0496, P0498, P0499, P0560, P0562, P0563, P0721,
P0722, P2122, P2123, P2127, P2128, P2138, P2227,
P2228, and P2229 are not set.
• The ignition voltage is between 10.5-18 volts.
• The engine run time is more than 10 minutes or the
fuel trim is stable.
• The fuel tank pressure is between -10.0 and +4.0 in.
H2O (-18.7 and 7.49 mm Hg).
• The fuel system is operating in Closed Loop.
• The engine is idling.
• The barometric pressure (BARO) is more than 68
kPa.
• The fuel level is between 12-88 percent.
• The calculated ambient air temperature is between 2-
32°C (35-90°F).
• The coolant temperature at engine start is within 10°C
(18°F) of the calculated ambient air temperature.
• The vehicle speed sensor (VSS) is less than 3 km/h (2
mph).
• The above conditions are met for more than 11
seconds.
• DTC P0455 will attempt to run up to 10 times or the
test completes successfully once per ignition cycle.
Conditions for Setting the DTC
• The ECM detects the EVAP system is not able to
achieve or maintain vacuum during the diagnostic
test.
• The condition exists for more than 4 seconds.
Action Taken When the DTC Sets
DTC P0455 is a Type A/B DTC.
Conditions for Clearing the DTC
DTC P0455 is a Type A/B DTC.
Diagnostic Aids
• A fuel fill cap that is left OFF after a fuel fill, will cause
this DTC to set.
• A loose, missing, or damaged fuel fill cap can cause
this DTC to set.
• A blockage or restriction in the EVAP purge solenoid,
purge pipe EVAP canister, or vapor pipe, can cause
this DTC to set.
• A temporary blockage in the EVAP purge solenoid,
purge pipe or EVAP canister could cause an
intermittent condition. Inspect and repair any
restriction in the EVAP system.
• To help locate intermittent leaks, use the J 41413-200
Evaporative Emissions System Tester (EEST) to
introduce smoke into the EVAP system. Move all
EVAP components while observing smoke with the J
41413-SPT High Intensity White Light. Introducing
smoke in 15 second intervals will allow less pressure
into the EVAP system. When the system is less
pressurized, the smoke will sometimes escape in a
more condensed manner.
• To improve the visibility of the smoke exiting the EVAP
system, observe the suspected leak area from
different angles with the J 41413-SPT.
• Observe the Freeze Frame/Failure Records vehicle
mileage since the diagnostic test last failed may help
determine how often the condition occurs that caused
the DTC to set. This may assist in diagnosing the
condition.
Reference Information
Schematic Reference
"Evaporative Emissions Hose Routing Diagram: "
Description and Operation
"Evaporative Emission Control System Description: "
DTC Type Reference
"Powertrain Diagnostic Trouble Code (DTC) Type
Definitions"
Scan Tool Reference
• "Scan Tool Data List - Engine Controls - 3.6L (LY7)"
• "Scan Tool Data Definitions - Engine Controls - 3.6L
(LY7)"
• "Scan Tool Output Controls - Engine Controls - 3.6L
(LY7)"
Special tool
J 41413-SPT High Intensity White Light
J 41413-VLV EVAP Port Vent Fitting Tool
J 41413-200 Evaporative Emissions System Tester
(EEST)
J 41413-300 EVAP Cap and Plug Kit
CH-48096 EVAP Service Port Access Tool
GE-41415-50 Fuel Tank Cap Adapter