Re: Rcm
I'd have to look at it. There is a connector going to the air pump and a connector going to the harness that leads to the ECM.
ONE of them is the "air pump failure" and one is the "mystery no start". I always go thru every single solder land, even the relay holes, diodes holes, every one. I re-flow the solder on every joint on the board, It takes all of 90 seconds.