Renault kango engine relay and fuse box

I have been told I need to replace the relay and fuse box in the engine bay. The engine turns over but there is no ignition, there have been several false sensor errors but it appears to be deteriorating relays which is causing the problems. I have a 03 Kango Dci70, would one from a 03 Dci80 be suitable. Excuse my ignorance. If it would be suitable would I have to reset the management system as well. Thanks in advance