Program security code
New immobiliser control units do not contain a programmed security code.
If the control unit is replaced, the security code entered in the car pass and all other codes and data mentioned above are programmed into the immobiliser control unit using TECH 1.
Important note:
The security code can only be programmed once with TECH 1, and must therefore be performed with the greatest of care.
It can then no longer be erased or altered.