This is governed in the 1985 strata titles act clauses 52-55

http://www.hba.org.my/laws/Strata/2007/ACT....htm#52.  The recovery of sum as debt due to management corporation.

Mgmt Corp (MC) will need to serve letters to the owner. If the owner continue to repeatedly ignore the letters, MC can apply to court to serve a warrant of attachment to the owner's belongings in the building. The attached belongings can be auctioned off if the owner still dont want to pay after a certain period. Finally the owner can be fined up to RM5000 and further fine of up to RM50/daily if contribution remains unpaid after conviction.

From what I read in the strate titles act, the MC must go through the legal route and at no times allowed to cut off water/electricity supply. In clause 55(1) if the MC breach the act by e.g. cutting off water/electricity, they themselves can kena fine.