ENGINE - 2AZ-FXE ENGINE
02HEG29Y
THS
ECU
Fuel Outlet Valve
(Close)
Fuel Vapor-containment
Valve (Close)
Canister
02HEG30Y
Fuel Filler Door Switch (ON)
THS
ECU
Fuel Filler
Door Opener
Fuel Tank
Pressure Sensor
Fuel Outlet
Valve (Close)
Fuel Vapor-containment
Valve (Open)
Filler Door
Courtesy Switch
Canister
Multi-information Display
EG-60
System Operation
1) Fuel Vapor-containment System
a. Parked (Power Source Mode OFF)
The THS ECU seals the fuel vapor in the fuel tank by closing the fuel vapor-containment valve. If, at
this time, the internal pressure of the fuel tank increases to a level that activates the fuel outlet valve
located in the fuel vapor-containment valve, the fuel outlet valve opens to release the internal pressure
of the fuel tank. This prevents the internal pressure in the fuel tank from increasing abnormally.
b. Refueling Wait
When the fuel filler door switch is turned ON, the THS ECU opens the fuel vapor-containment valve,
allowing the fuel vapor to be absorbed by the canister and reducing the pressure in the fuel tank. The
fuel filler door will not open unless the internal pressure of the fuel tank decreases to a level close to
the atmospheric pressure. In addition, the multi-information display will show the “PLEASE WAIT
NOW OPENING”.
Содержание Camry Hybrid AHV40
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