These work the same as the Spawn Item list. Simply type them into the console.

• heal = Heal your player
• setcomputeruse xx = Sets Computer Use Skill Level
• setdemolitions xx = Sets Demolitions Skill Level
• setstealth xx = Sets Stealth Skill Level
• setawareness xx = Sets Awareness Skill Level
• setpersuade xx = Sets Persuade Skill Level
• setrepair xx = Sets Repair Skill Level
• setsecurity xx = Sets Security Skill Level
• settreatinjury xx = Sets Treat Injury Skill Level
• setstrength xx = Sets Strength Skill Level
• setdexterity xx = Sets Dexterity Skill Level
• setconstitution xx = Sets Construction Skill Level
• setintelligence xx = Sets Intelligence Skill Level
• setwisdom xx = Sets Wisdom Skill Level
• setcharisma xx = Sets Charisma Skill Level
• addexp XX = Add experience
• addlightside xx = Adds Light side Experience
• adddarkside xx = Adds Dark side Experience
• revealmap = Reveals the entire map with M key
• givecredits xx = Gives Money
• givemed = Gives 100 Med Kits
• giverepair = Gives 100 Advance Repair Kits
• givecomspikes = Gives 100 Computer Spikes
• givesecspikes = Gives 100 Section Spikes
• givesitharmour = Gives 100 Amour
• infiniteuses = All limited Use Items Never Expire
• invulnerability = Invulnerablilty

As with Star Wars: Knight of the Old Republic you must have EnableCheats=1 under the [Game Options] header in the swkotor2.ini file. While in the game, hit the tilde key to activate the console (which is invisible in KotOR2) and type use the "giveitem [item code]" command to spawn the item that you want in your inventory. This was taken from the templates.bif file in the /data directory.