i-STOP (Engine Stop Control)

When the i-stop (engine stop control) permit conditions are met, the PCM stops the engine based on the following controls:
- Fuel injection control (fuel cut)
  - Engine speed is reduced by the fuel cut.
- Drive-by-wire control (throttle valve open/closed)
  - By adjusting the throttle valve opening angle, the engine speed is reduced and the pumping loss is used to stop the engine.
- Electric variable valve timing control (intake valve timing retard)
  - Intake valve timing retard is performed for engine restart by i-stop control.
- Generator output control (generator load) (without Mazda M Hybrid)
  - Engine speed is reduced by lowering the generator load.