Purpose, Function
Ensures vacuum required for braking force to compensate for the decrease in intake manifold vacuum applied to the power brake unit caused by the retard intake valve closing.
Construction
The vacuum pump is installed to the rear housing.

For smooth vane rotation, a single-vane type vacuum pump has been adopted which is equipped with an engine oil lubrication passage.

Operation
Because the vacuum pump is directly engaged with the exhaust camshaft, the vane in the vacuum pump rotates together with the exhaust camshaft, and the vacuum chamber is expanded and vacuum is generated.

Vacuum generation mechanism

Vacuum Pump Removal/InstallationAccessory Sockets
Only use genuine Mazda accessories or the equivalent requiring no greater than
120 W (DC 12 V, 10 A).
Front
The ignition must be switched to ACC or ON.
Center, Rear
The accessory sockets can be used regardless of whether the ignition is on or
off.
CAUTION
●To prevent accessory ...
Steering Column And Shaft
Purpose/Function
The steering input force, generated when the driver operates the steering
wheel, is transmitted to the steering gear.
Construction
The steering column and shaft consists of the steering column with a built-in
EPS mechanism and the intermediate shaft.
...
Starter Interlock Switch [Skyactiv G 2.0]
Purpose, Function
The starter interlock switch mechanism prevents vehicle surge when the engine
is started, enhancing safety. The engine cannot be started unless the clutch
is depressed.
Construction
The mechanism is provided with a starter interlock switch on the circuit
...