Consuemeri

Hello everyone. I've been pulling my hair out (what little i have left) about this issue I'm having. Car died on the highway one day. No start condition. Towed it home. Dicked around with it for a bit. Went to pull the relay and she tried starting. So I replaced the relay. Worked great for one day. Then. Same boat. Haven't tried another relay yet. But noticed I have no CEL on acc or start. No crank. And obd2 autel scanner won't recognize ecm. Anyone have any ideas. I've checked starter and alt fuse. As well as repeated ecm connector. Thanks in advance.