CPL Automotive Lock & Transponder Systems 3

Question 1

What frequency do most North American remote keyless entry (RKE) fobs transmit on?

Accepted Answer

315 MHz

Answer

Most North American RKE systems use 315 MHz, while European systems typically use 433.92 MHz.

Question 2

What is the purpose of the antenna ring around the ignition cylinder in a transponder system?

Accepted Answer

It energizes the transponder chip via inductive coupling and reads its response

Answer

The antenna ring uses inductive coupling to power the passive transponder chip and receive its identification signal when the key is inserted.

Question 3

Which programming method requires the locksmith to enter a specific sequence of actions using the existing working key?

Accepted Answer

On-board programming

Answer

On-board programming (also called self-programming) uses a sequence of key turns, door operations, or button presses with an existing working key to add new keys.

Question 4

A technician needs to program a key for a vehicle with a crypto-secured transponder system (like Megamos Crypto). What is required?

Accepted Answer

Advanced programming device with vehicle-specific software and possibly PIN/CS code

Answer

Crypto-secured transponder systems require specialized programming equipment, often with vehicle-specific software, and may require a PIN or CS (crypto secret) code.

Question 5

What is a 'dead lock' feature in automotive door systems?

Accepted Answer

A lock that cannot be opened from inside or outside when engaged

Answer

A deadlock (or double-lock) prevents the door from being opened from inside even if the interior handle is pulled, providing extra security against break-in.

(CPL) Certified Professional Locksmith Practice Test

(CPL) Certified Professional Locksmith Practice Test

CPL Automotive Lock & Transponder Systems 3