Except U.S.A. And CANADA
Purpose, function
The check valve maintain the pressure in the fuel tank at constant pressure.
Construction
The check valve is installed to the side of the charcoal canister.

Mainly consists of valve, umbrella, and spring.

Operation
The valve moves in response to the difference in air pressure between the fuel tank side and the atmospheric side, thereby changing the path of airflow.
When the pressure in the fuel tank becomes negative due to fuel consumption or other factors, the path opens, drawing atmospheric air into the fuel tank.
Check Valve Removal/Installation
Emission SystemClutch Disc Inspection [C66 M R]
Operation Inspection
1. Inspect the lining surface for discoloration and grease adhesion.
2. Inspect the torsion spring for weakness and the rivets for looseness.
3. Using a vernier caliper, measure the depth between the lining surface and
the rivet head.
Minimum clutch disc thicknes ...
Auto Leveling Sensor Inspection
1. Disconnect the negative battery cable..
2. Remove the auto leveling sensor..
3. Prepare three dry cell batteries (1.5 V).
4. Connect the three dry cell batteries in a series.
5. Connect the positive pole of the dry cell battery to auto leveling sensor
terminal C, and the negative po ...
Wiper/Washer System Personalization
A customize function has been adopted which switches the auto wiper system
between operable/inoperable.
Using Mazda Modular Diagnostic System (M-MDS)
The auto wiper function can be enabled or disabled using the Mazda Modular
Diagnostic System (M-MDS). Refer to the Workshop M ...