CAL High-Security Automotive Keys 2

Question 1

What is the primary purpose of a transponder chip embedded in a high-security automotive key?

Accepted Answer

To communicate an immobilizer code to the ECU

Answer

To store the vehicle's VIN number

Answer

To control the power door locks remotely

Answer

To encrypt the key's mechanical cuts

Question 2

Which cloning method is used when a transponder key cannot be duplicated by standard EEPROM reading because the original chip is crypto-locked?

Accepted Answer

Emulation via an aftermarket blank with editable memory

Answer

Mechanical key impression

Answer

OBD-II key learning without original present

Answer

Frequency scanning with an SDR dongle

Question 3

A 2018 Ford F-150 uses a PATS 4 system. Which tool operation is typically required to add a new key when only one working key is available?

Accepted Answer

Using an IDS/FJDS interface or compatible J2534 device to perform a security access routine

Answer

Bypassing the BCM entirely

Answer

Cloning the original key's transponder ID directly

Answer

Replacing the PCM before programming

Question 4

What does 'rolling code' mean in the context of automotive remote key fobs?

Accepted Answer

Each button press transmits a new cryptographic code from a synchronized sequence

Answer

The physical key rotates in the lock cylinder

Answer

The key's frequency rolls between bands to avoid interference

Answer

The code changes only when the battery is replaced

Question 5

When cutting a high-security laser-cut (sidewinder) key, what is the critical difference from cutting a standard double-sided key?

Accepted Answer

Laser-cut keys use depth cuts on the key blade face rather than the edge

Answer

Laser-cut keys require cuts only on one side

Answer

The cuts are made with a standard edge-cut machine at higher speed

Answer

Laser keys have no bitting; security comes from the transponder only

Question 6

A locksmith is programming a Chrysler vehicle using the 'SKIM' method. What does SKIM stand for?

Accepted Answer

Sentry Key Immobilizer Module

Answer

Secure Key Immobilizer Module

Answer

Smart Key Interface Module

Answer

Sequential Key Input Method

Question 7

What is a 'super chip' or 'multi-chip' used for in high-security key duplication?

Accepted Answer

It is a chip that can emulate multiple transponder types depending on programming

Answer

It combines the transponder and remote in one chip

Answer

It boosts the key's RF signal for longer range

Answer

It stores multiple vehicle VINs simultaneously