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/InstallationTcs Off Switch Inspection
1. Remove the TCS OFF switch..
2. Verify that the resistance between the TCS OFF switch terminals B and C is
as indicated in the table.
If not as indicated in the table, replace the TCS OFF switch.
TCS OFF switch specification
Terminal
Test con ...
Vacuum Pump Removal/Installation
1. Remove the plug hole plate..
2. Remove the battery..
3. Set the PCM wiring harness out of the way.
4. Disconnect the vacuum hose from the vacuum pump..
5. Remove in the order shown in the table.
6. Install in the reverse order of removal.
1
Vacuum hose
...
Air Mix Actuator Removal/Installation [Full Auto Air Conditioner]
Driver-side
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Side wall (driver-side).
b. Front heat duct (LH).
3. Disconnect the air mix actuator connector.
4. Remove the screw.
5. Remove the driver-side air mix actuator.
6. Install in the reverse order ...