Damon Ultra Sport 2002 - Fuse Location

Hi, friend has a Damon 2002 and she needs to find the location of the fuse for the Diesel Fuel Pump. When she runs a cable between battery and fuel pump it starts, otherwise not. She's not sure where the fuse is located since she says there are fuses everywhere. Truck mechanics could also not find it. She's a young owner in Spain.
Thanks for any help!