92 vp ute computer \ fuel pump

[bel002]

Hi all, I think I am having some problems with the computer, its not telling the fuel pump to turn on. i have checked the pump with a wire from the battery to the relay and the pump turns on and the car runs fine. I have also done the fault check and got "12" so all is good apparently.
I am lost as to what it might be any, so hints or advice would be nice thank you.