Fuses: Device used as electrical protection. It limits the electrical current that flows through a circuit.
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They can be identified with a number that states the maximum current they can withhold. Once this current is surpassed (due to an overload or a short-circuit), the fuse breaks down and interrupts the flow of the current. The location and function of each fuse is stated in the owner's manual of the car or in the plastic lid of the fuse box.
The 2nd fuse box in Australia is on the RHS of and below the steering wheel. It’s very difficult to pull out but you need to persist! It’s behind the box just above the bonnet release.
hey i want to add a dash cam to my h6, i looked at fuse= no7 is 12v front which i guess is accesory, and fuse no.1=hcu battery-- is that positive constant