HEATER TURNS ON AND OFF AND THE ENGINE LIGHT IS ON.

What is your question?

THE HEATER WILL BLOW HOT AIR AND THEN CHANGE TO COLD AIR FOR NO REASON. THE ENGINE LIGHT HAS COME ON SINCE THIS HAS BEEN HAPPENING. HAD THE OIL CHANGED A WEEK AGO AND THEY TURNED OFF THE ENGINE LIGHT. A COUPLE DAYS LATER THE LIGHT CAME BACK ON.

What makes this problem better or worse?

NOTHING IT IS INTERMITTENT

How long has your 2017 Chrysler 200 had this problem?

COUPLE OF WEEK.