CAL Automotive Locksmith Security & Anti-Theft Technologies 3

Question 1

What is the purpose of a Tiris DST40 transponder in automotive security?

Accepted Answer

It provides a 40-bit encrypted challenge-response authentication used primarily in Ford and Toyota vehicles

Answer

The Texas Instruments DST40 uses a 40-bit proprietary cipher for immobilizer authentication, used in Ford and Toyota among others.

Question 2

A locksmith is asked to program a proximity key for a vehicle that requires 'pin code extraction.' What does this process involve?

Accepted Answer

Extracting the vehicle's security PIN from the BCM, EEPROM, or via OBD-II to authorize new key programming

Answer

Pin code extraction retrieves the vehicle's security access code from the BCM or EEPROM, which is needed to authorize programming a new key.

Question 3

Which transponder type is commonly referred to as a 'glass transponder' and why?

Accepted Answer

A transponder encased in a glass tube, typically embedded in the key head or fob

Answer

Glass transponders are passive RFID chips sealed inside a small glass tube, typically implanted in the plastic head of a vehicle key.

Question 4

What is the main difference between ID46 and ID47 transponders?

Accepted Answer

ID46 uses PCF7936 with a 128-bit rolling code while ID47 uses AES-128 encryption

Answer

ID46 (PCF7936) uses a 128-bit rolling cipher, while ID47 is a newer generation using stronger AES-128 encryption for enhanced security.

Question 5

When a vehicle is in 'anti-theft lockout mode' after multiple failed key attempts, what is the recommended first step for a locksmith?

Accepted Answer

Wait for the lockout timer to expire or consult OEM procedures for resetting the security system

Answer

Most OEM systems impose a timed lockout that clears automatically; jumping ahead with invasive methods risks permanently locking the ECU.

(CAL) Certified Automotive Locksmith Practice Test