ok guys i have found the wire that i need for the AC however it dosnt have any + or - charge i have used a test light and it dosnt show anything just like a wire thats dead. I have tested it from the ECU from the where the wire was cut (near the fuel rail) and also at the juction box all 3 poiunt show the same issue. Yes i had the car on switch on (running) and the AC was turned on.
air blows through te air con so its on fan. And the fuse in the front seems to be fine.
Is there something else that i can try to get this working, or is there another point it could be broken at? if so where can i look.
Owh car is an mr2 - 3sgte

Thanks

Brad