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High-Security Automotive Keys Flashcards

7 cards from real CAL practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 7 High-Security Automotive Keys flashcards as text
  1. A customer's 2020 RAM 1500 uses a Proximity Key. After replacing the battery, the push-button start fails. What is the most likely cause?

    Answer: The battery replacement temporarily disrupted the fob and it should recover on its own or be held near the start button

    Most proximity key fobs recover automatically; holding the fob directly against the start button activates a backup inductive coupling that starts the vehicle even with a dead battery.

  2. What is a 'tibbe key' and which vehicle manufacturer is most commonly associated with it?

    Answer: A rotating-disc key used by Saab and early Jaguar/Ford vehicles

    The Tibbe key has a round barrel with notch cuts at specific rotational positions and depths, most commonly associated with Saab, Jaguar, Ford, and Land Rover vehicles.

  3. When a locksmith uses the 'OBDSTAR X300 DP' or similar all-in-one programmer, what major advantage does it offer over individual dedicated programmers for each make?

    Answer: It covers a wide range of vehicle makes and models through regular software updates in a single device

    All-in-one platforms like the X300 DP support hundreds of vehicle makes/models via a unified hardware device with updateable software, reducing the need for multiple single-brand tools.

  4. Which standard governs the diagnostic communication used by most modern automotive immobilizer programming tools when working via the OBD-II port?

    Answer: SAE J2534 (PassThru)

    SAE J2534 (PassThru) defines the standardized interface that allows third-party tools to communicate with a vehicle's ECU using OEM software over the OBD-II port.

  5. A 2016 Nissan Altima has a lost-key scenario. The Nissan NATS system is involved. What does NATS stand for?

    Answer: Nissan Anti-Theft System

    NATS (Nissan Anti-Theft System) is Nissan/Infiniti's proprietary immobilizer system; all-keys-lost programming requires an NATS-compatible tool with security access.

  6. What security feature do high-security keys with 'paracentric' keyways provide?

    Answer: They prevent unauthorized key duplication by requiring proprietary cutting equipment and restricting key blanks to authorized dealers

    Paracentric keyways have deeply incut, complex profiles that prevent standard blank insertion and require restricted blanks, limiting duplication to authorized channels.

  7. A locksmith is asked to program a new key fob to a Hyundai Sonata using the 'self-programming' sequence. At what point does this method fail and require a professional tool?

    Answer: When all previously programmed keys are lost and none is available to initiate the sequence

    Self-programming sequences for Hyundai require at least one already-programmed key to initiate the sequence; an all-keys-lost scenario demands a professional scan tool.