I was wanting to know what the wire color code on a ignition switch for a 2015 ho da Civic my car starts but does right back off & I don't know why or what to do

 

Is the Immobilizer system symbol (green key) blinking when this happens?





If it is blinking, there is an issue with the Immobilizer system. A car battery with a low charge can also cause this. When was the car battery last replaced? You may want to get the battery tested/replaced.