Penal Code § 466.7
CHAPTER 3. Burglarious and Larcenous Instruments and Deadly Weapons
Every person who, with the intent to use it in the commission of an unlawful act, possesses a motor vehicle key with knowledge that such key was made without the consent of either the registered or legal owner of the motor vehicle or of a person who is in lawful possession of the motor vehicle, is guilty of a misdemeanor.