if that fuse is only feeding the keypad then yes. But id suspect its also feeding other things. It will be one of those devices. Id go with device rather than cable but as mr h says it could be a staple, nail etc penetrating the cable somewhere
@Honda3
find a local tame alarm man, get them to price via email to replace the controls, battery & external bell.
they'll measure all the cables & currents if they've 1/2 a brain...
I'd assume your cables are stapled under the carpets ?
Replace the fuse & tread on every inch of carpet where a cable might be lurking ?
If I was a betting man-
I'd wager you've more chance of getting a hand job off her majesty the queen than your powered down alarm making the "chirp"
You've probably got a brand new in box, carbon monoxide or smoke alarm in the cupboard....