Purpose, Function
The starter relay supplies power to the starter by receiving the signal from the PCM.
Construction
The starter relay is installed to the relay and fuse block.
Operation
The contact point is on when the voltage is supplied to the coil based on the signal from the start stop unit, and the battery voltage is supplied to the starter.

Fail-safe
Function not equipped.
Starting System [Skyactiv G 2.0]
EngineReporting Safety Defects (U.S.A.)
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying Mazda Motor Corporation (Your
Mazda Importer/Distributor).
If NHTSA receive ...
Battery [Skyactiv G 2.0]
Purpose, Function
The battery stores electricity generated by the generator. In addition, it
supplies power to electronic devices if necessary.
Construction
The battery is installed in the engine compartment. (vehicle left)
Fail-safe
Function not equipped.
...
PCM
Purpose/Function
High-level driveability and lower fuel consumption have been realized by
controlling the appropriate engine conditions (fuel injection/ignition timing)
according to operation conditions.
Controls each output part based on the signal from each input part.
...