In term of automotive , there are main lock systems, the manual and automatic lock system. The 1992 audi 80-Lock and Alarm Control Unit consists of power windows module, central lock system sensor, trunk lid alarm switch, hood alarm switch, seat belt warning module, and alarm horn.
The following schematic illustrates the Audi lock and alarm unit wiring diagram. The sensor produces alarm when an invader approaches your . The central lock unit or front passenger to simultaneously lock or unlock all the doors by pressing the key switch.