Electropneumatic trailer control module for an electronically controllable pneumatic brake system for a vehicle combination with a tractor vehicle and a trailer vehicle , having: an electronic control unit (ECU), a pneumatic reservoir input , which is connectable to a compressed-air reservoir , a trailer control valve unit with one or more electropneumatic valves (RV, IV, OV), a trailer brake pressure port , and a trailer supply pressure port , wherein the electronic control unit (ECU) has a parking brake signal input for receiving an electronic brake representation signal (S B1 , S B2 , S B3 ) which represents the actuation of an immobilizing brake of the tractor vehicle , wherein the electronic control unit (ECU) is configured to, on the basis of the brake representation signal (S B1 , S B2 , S B3 ), switch at least one valve (IV) of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit in order to output a brake pressure (P B ) at the trailer brake pressure port , characterized in that the parking brake signal input is designed to be connected to a pressure sensor , and the electronic control unit (ECU) is configured to receive the electronic brake representation signal (S B2 , S B3 ) from the pressure sensor , wherein the electropneumatic trailer control module has a parking brake valve unit with a pneumatically controlled switching valve which has a pneumatic control input for receiving a pneumatic control pressure (P 3 ), wherein, when the parking brake pressure input is ventilated, the pneumatically controlled switching valve is switched such that a brake pressure (P B ) can be output at the trailer brake pressure port . an electronic control unit (ECU), a pneumatic reservoir input , which is connectable to a compressed-air reservoir , a trailer control valve unit with one or more electropneumatic valves (RV, IV, OV), a trailer brake pressure port , and a trailer supply pressure port , wherein the electronic control unit (ECU) has a parking brake signal input for receiving an electronic brake representation signal (S B1 , S B2 , S B3 ) which represents the actuation of an immobilizing brake of the tractor vehicle , wherein the electronic control unit (ECU) is configured to, on the basis of the brake representation signal (S B1 , S B2 , S B3 ), switch at least one valve (IV) of the one or more electropneumatic valves (RV, IV, OV) of the trailer control valve unit in order to output a brake pressure (P B ) at the trailer brake pressure port , characterized in that the parking brake signal input is designed to be connected to a pressure sensor , and the electronic control unit (ECU) is configured to receive the electronic brake representation signal (S B2 , S B3 ) from the pressure sensor , wherein the electropneumatic trailer control module has a parking brake valve unit with a pneumatically controlled switching valve which has a pneumatic control input for receiving a pneumatic control pressure (P 3 ), wherein, when the parking brake pressure input is ventilated, the pneumatically controlled switching valve is switched such that a brake pressure (P B ) can be output at the trailer brake pressure port . <EOS>