I think I broke part of my ECM. Code 54 help please.

well I was trying to wire a switch into my fan so I can turn it on at will and knew I needed to ground the green wire with a white stripe at the fan control relay. Problem is I was an idiot and grounded the green with white stripe wire on the FUEL PUMP relay instead. According to my Haynes this wire goes straight to the ECM. I took the ground off, but now I am getting a SES code 54. what I am looking for are what voltaages should I be getting from the Green with white strope wire at that relay? Cause Im not gettig anything now. I replaced the oil pressure switch and that solved my die at idle issue, but I still have no voltage on this wire and still get SES 54.

any ideas? A new ECM is 89 bucks at the local AutoZone, so I might have to do that, but I was hoping maybe you guys could shed some light and maybe help me save 90 bucks.

check continunity on that green relay to ground, if its almost no load, it should be ground and youre alright..if its not, check voltage..if youre getting something..disconnect the battery for 15 min or so. let the ECM reset so the code goes away, try start it up again. if it still gives you the code.. good luck.