CML Automotive Locksmithing Flashcards

What is a vehicle immobilizer?

Answer: An electronic system that prevents engine start without the correct transponder signal

An immobilizer is an electronic anti-theft device that disables the engine management system unless it receives the correct transponder code from the key.

What equipment do automotive locksmiths typically use to program new transponder keys?

Answer: An OBDII programmer or key programming device connected to the diagnostic port

OBDII programmers connect to the vehicle's diagnostic port under the dashboard to program new transponder keys to the vehicle's immobilizer.

What is a sidewinder (laser-cut) key?

Answer: A key with cuts machined into the center channel on both sides of the blade

Sidewinder/laser-cut keys have cuts machined into the center groove (track) running along both sides of the blade, providing higher security than traditional edge-cut keys.

What is the purpose of a jiggler key set in automotive locksmithing?

Answer: To try multiple bitting patterns in a lock by feel and movement to achieve opening

Jiggler keys have varied bitting patterns that, when worked in the lock, may align tumblers sufficiently to open the cylinder.

What is the standard procedure when a key breaks off inside a vehicle ignition?

Answer: Use a broken key extractor tool to remove the fragment

A broken key extractor tool is specifically designed to grip and remove broken key fragments from lock cylinders without damaging the cylinder.

Which ignition switch position is typically required when programming a new transponder key?

Answer: ON/RUN position without the engine running

Most programming procedures require the ignition in the ON/RUN position so the vehicle's electronics are powered and communicating without the engine cranking.