Description: [ Diagnostic systems used to measure and monitor the operational status of functional systems in land vehicles, namely, diagnostic controllers comprised of a display unit, program cards, keyboard, sockets and connecting cables; ]electronic control units for the processing and the evaluation of signals generated by sensors which measure the operational status of functional systems in land vehicles; [ pressure operated switches; control systems and components thereof for heating, ventilating and air conditioning in land vehicles, namely, fan modules, pulse motors, DC motors, limit switches, temperature sensors, and operation consoles; ] electronic control apparatus comprised of software, sensors, anti-skid systems (ABS) and parts thereof, anti-slip systems (ASR) and parts thereof of land vehicles sold as a unit [ control apparatus for land vehicle dampers, namely, electronic control units and software sold as a unit; systems and components thereof for the control of the movement stability of land vehicles, namely, sensors for vehicle signals, electronic control units and software ]