How to use VVDI2 VAG for reading CS PIN MAC

It’s a VVDI2 VAG manual of CS, PIN, MAC reading. Manually read cs, pin and mac from vag 4th immobilizer system ECU and automatically from vag 5th immobilizer system ECU

Part 1: Xhorse vvdi2 vag - manually - vag 4th immobilizer

You can select autodetect engine control unit existing to get PIN/CS or type in known

PIN/CS manually

CS:

Component security bytes. It has 12 bytes for UDS 4th immobilizer cluster. Move your mouse to this area, you will get balloon show 7 bytes CS in ECU show original 6 byes CS is: C2 D3 45 7E 68 0E). You can’t find 7th byte CS from UDS 4th immobilizer cluster, it don’t have 7th byte, it have another 6 bytes CS part 2

CAN 4th immobilizer cluster (CDC32xx, A3/TT/R8) will have 7 bytes at this value. That

is the original 7 bytes CS

ECU must have same 6 bytes CS with balloon show CS bytes. If they are not same,

you car can’t start

PIN:

login code, it can use login to ECU or other module which support login immobilizer PIN. You can learn dealer key with CAN protocol cluster ECU has same PIN with this value. If not same, car will not start. So, for CAN protocol cluster, you can learn key with PIN read from ECU

MAC:

Synchronization codes between ECU and immobilizer system, usually have 4 bytes. The first 2 bytes is immobilizer synchronization code, the last 2 bytes is ECU synchronization code. MAC value in the picture above is “B188708F”, “B188” is immobilizer synchronization code, “798F” is ECU synchronization code. Generally, the synchronization code for ECU or immobilizer system is a fixed value. If you install new ECU, MAC value in immobilizer will change last 2 bytes to new ECU synchronization code; if you install new immobilizer, MAC value in ECU will change first 2 bytes to new immobilizer synchronization code. 

Normally, MAC value must be same between ECU and immobilizer. If there are not same, ECU and immobilizer system will have same DTC error like this: Engine control unit is not authorized. You can fix this error by “Adapt Unit->select ECU->Read->Write”, it willsynchronize MAC automatically between ECU and immobilizer system

Part 2: Xhorse vvdi2 - automatically - 5th immobilizer vag

Autodetect PIN/CS:

Read PIN and CS from engine control unit or immobilizer system automatically. After success read PIN and CS, you just need input key count to learn key

NOTE: PIN, CS, MAC function only can be authorized for free for those with Xhorse iKeycutter Condor XC-MINI key cutting machine.

This is from Xhorse VVDI technical support:How to use VVDI2 VAG for reading CS PIN MAC