I have something similar but a 97 fault at top floor .I noticed that ets1l was lite ,left car on mr insp when got called out .Came back an ran back to bottom on insp did reset an car ran fine,noticed sensor had been change a couple times in last six months .do I have CIO PCB maybe going bad. Also when first got there every time I reset it an ran it up .to top it would fail .no parts on job