What is the Jetta 5AFE fault?

[KeeganDella]

Jetta 5AFE indicates an immobilizer control unit fault. This means the immobilizer control unit of the Bora needs to be replaced. The function of a car immobilizer: A car immobilizer is a device installed in a vehicle to increase the difficulty of theft and prolong the time required for theft, acting as a guardian for the car. By connecting the immobilizer to the car's electrical circuit, it can prevent vehicle theft, unauthorized use, protect the car, and achieve various functions of the anti-theft system. Classification of immobilizers: With the advancement of technology, to counter increasingly sophisticated car theft methods, various types of immobilizers with different structures have been developed. Immobilizers can be categorized into four main types based on their structure: mechanical, chip-based, electronic, and network-based.