Apologies for straying off topic, but going on from finding the ECU and if the intention is to inspect the connections, is it a strong recommendation to disconnect the battery before unplugging any ECU electrical connectors on the Doblo.
I ask the question because a couple of years back I collected a £300 Ford main dealer bill for diagnostics and I guess resetting of data after I stupidly unplugged a couple of multiplug connectors on the main fuse board without doing the battery disconnect. This was on our 07 Ford Focus. All sorts of error messages including 'engine system malfunction' from the non starting Focus.