Purpose, Function
Assures safety by preventing fuel from returning to the fuel filler opening.
Construction
The non-return valve cannot be removed as it is installed inside the fuel tank.
2WD

AWD

A single valve type has been adopted for the non-return valve.

Operation
Normally, the valve is closed as shown by the dotted line in the figure. When refueling, it opens as shown by the solid line due to the force caused by the flow of fuel. When refueling is finished, the valve returns to the normal valve position by spring force.

Non Return Valve Inspection
Plug Hole Plate Removal/InstallationEvaporative Emission (Evap) Control System
Purpose, Outline
Prevents release of evaporative gas into the atmosphere.
The intake manifold vacuum introduces evaporative gas to the intake manifold
via the charcoal canister and the purge solenoid valve.
System Diagram
U.S.A. and CANADA
Except U.S.A. and CANADA
...
Theft-Deterrent System
If the theft deterrent system detects an inappropriate entry into the vehicle,
which could result in the vehicle or its contents being stolen, the alarm alerts
the surrounding area of an abnormality by sounding the horn and flashing the hazard
warning lights.
The system will not function unle ...
Air Intake Actuator Inspection [Full Auto Air Conditioner]
1. Connect battery positive voltage to air intake actuator terminal B (or C),
connect terminal C (or B) to ground, and then verify that the air intake actuator
operates as shown in the table.
If the operation condition is not normal, replace the air intake actuator.
...