The RCM got replaced after the car died and wouldn't reliably start, And by reliably, I mean frequently it wouldn't start at all. Replacement of the RCM resolved that. I still have the original part. I'm just confused as to why the light comes on, goes out and then comes on and stays on. Its like it initially is working properly and then something erroneously is sending the system a faulty signal or possibly no signal at all maybe.