no start, dash lights on intermittently, at times turning on a/c car will die

Hello, have you tried replacing the relay? Have you traced what is affected by that relay - what systems? You have clues, but need to follow through with hands on testing. It's not a guess thing where folks here can weigh in; this is not a common concern and hands on testing is really essential to figure out what is going oin. www.repairpal.com/repair-shops