where I can find the wiring diagram of a Transit 2000 diesel

[Poette]

Hello everyone, my name is Thomas from Italy.
I need some help.
Can any of you tell me where I can find the wiring diagram of a Transit 2000 diesel from the year 2000? With ABFA engine.
I replaced the fuel pump and now it no longer receives the key code...
My mechanic friend can't find the wiring diagram between the key and the pump...
Can you help me...?
A thousand thanks!!!