Locksmith Automotive Locksmithing 2

Question 1

What does TPMS stand for in modern vehicles, and why is it relevant to automotive locksmiths?

Accepted Answer

Tire Pressure Monitoring System, which can be disrupted during wheel well access

Answer

TPMS (Tire Pressure Monitoring System) uses sensors in wheels that can be affected when locksmiths access wheel wells during certain procedures.

Question 2

When using an automotive decoder tool on a lock cylinder, what is the primary purpose?

Accepted Answer

To read the bitting code of the existing key cuts without removing the cylinder

Answer

A decoder tool reads the depth and spacing of cuts inside a lock cylinder, allowing the locksmith to cut a working key without the original.

Question 3

Which OBD port protocol is most commonly used by modern US vehicles for key programming communication?

Accepted Answer

CAN bus (Controller Area Network)

Answer

CAN bus is the dominant communication protocol in modern vehicles and is accessed through the OBD-II port for key programming and diagnostics.

Question 4

A customer's car uses a proximity key system and the vehicle won't start. What is the FIRST thing a locksmith should check?

Accepted Answer

Check if the key fob battery is dead

Answer

A dead key fob battery is the most common and simplest cause of a proximity key failure and should always be checked first before invasive procedures.

Question 5

What is the function of the Body Control Module (BCM) in relation to automotive lock systems?

Accepted Answer

It manages door locks, windows, lights, and communicates with the immobilizer system

Answer

The BCM controls a wide range of body functions including door locks and communicates with the immobilizer/PATS system to authorize vehicle start.

Locksmith Practice Test

Locksmith Practice Test

Locksmith Automotive Locksmithing 2