Things You'll Need
Instructions
Plug one end of the action replay into the back of your Nintendo DS and the other into your computer. This will cause the action replay code manager to automatically pop up on your computer screen.
Click "Add to Code List" and enter the following code: 94000130 fcff0000 b21c4d28 00000000 b0000004 00000000 da000000 000002e2 d6000000 000002e4 d2000000 00000000.
Drag the code over to the "Pokemon Pearl" file on the left side of the action replay code manager. Select "Okay" when prompted.
Unplug your action replay from your computer and DS. Insert "Pokemon Pearl" into the game slot and turn the game on. Press the check mark to turn on the "Secret ID" cheat when prompted.
Press "Start" to begin the game. Once the game has loaded, press the "L" and "R" button at the same time.
Pause the game and navigate to your money amount. The amount of money you have will be your secret ID number. All secret IDs have five numbers. If your money amount is only four numbers, this means that the first number of your ID is a zero. For example, if your money amount changes to 1234, your secret ID number would be 01234.