Some vehicles may experience the mil on with dtc p0601:00 (pcm memory check sum error) when the accelerator pedal is pushed while in 1st gear just after deceleration. This concern is caused by improper control logic of the pcm. To correct the problem, the control logic of the pcm has been changed.
NANHTSA · manufacturer bulletin10097405
Service bulletins
Concerns: Mazda MX-5 (NC) (Model years 2013)
Sources: NHTSA (United States, public domain), Transport Canada (Open Government Licence – Canada), DVSA (United Kingdom, Open Government Licence v3.0), RappelConso and EU Safety Gate (France, Licence Ouverte 2.0).