There is no cheat code for 9,999 Simoleons in The Sims 2 Pets (Wii). The console version has a limited cheat menu — no motherlode, kaching, or familyFunds.
048A3B90 0000270F = §9999 — *untested, may crash*).Recommendation: Play normally — money comes fast once a Sim hits Career Level 8+. The grind *is* the game loop.