Fiat Ducato 2017 Owner's Handbook Manual page 166

141) Never replace a fuse with another with a higher amp rating; RISK OF FIRE. If a general protection fuse (MEGA-FUSE, MIDI-FUSE) is
activated, contact a Fiat Dealership.
142) Before replacing a fuse, make sure that the ignition key has been removed and that all the other services are switched off and/or
disengaged.
143) If the replaced fuse blows again, contact a Fiat Dealership.
144) Contact Fiat Dealership if a safety system (airbags, brakes), engine system (engine, gearbox) or steering system general protection fuse
blows.
47) Never replace a faulty fuse with metal wires or anything else.
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WARNING