CML CML Automotive Locksmithing 2

Question 1

What is a vehicle immobilizer?

Accepted Answer

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

Answer

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

Question 2

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

Accepted Answer

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

Answer

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

Question 3

What is a sidewinder (laser-cut) key?

Accepted Answer

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

Answer

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.

Question 4

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

Accepted Answer

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

Answer

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

Question 5

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

Accepted Answer

Use a broken key extractor tool to remove the fragment

Answer

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

(CML) Certified Master Locksmith Practice Test

(CML) Certified Master Locksmith Practice Test

CML CML Automotive Locksmithing 2