Electronically controlled pneumatic brake system for a vehicle, in particular a commercial vehicle, comprising a central module for controlling the brake system , comprising a rear axle service brake control, at least one first brake circuit and one parking brake circuit , an electropneumatic parking brake assembly having first spring-loaded brakes on a rear axle (HA) and second spring-loaded brakes on a further axle (VA, ZA) comprising a shut-off valve , and a parking brake module , the parking brake module comprising a supply connection for connecting to a compressed air supply , a first spring-loaded connection for connecting the shut-off valve , an electropneumatic valve unit having at least one electropneumatic valve for modulating a spring-loaded brake pressure (pF) at the first spring-loaded connection , and an electronic control unit (ECU) for receiving parking brake signals (S1, S2, SR) from an electronic parking brake switch (HCU) and/or a master control unit , the shut-off valve having a second spring-loaded connection for connecting spring-loaded brakes of the further axle (VA, ZA) and shutting off the second spring-loaded connection in response to a shut-off signal (SA) provided by the parking brake module , characterized in that the electropneumatic parking brake module is designed to provide the shut-off signal (SA) when, in the event of a fault in the rear axle service brake control system, the further axle (VA, ZA) is controlled by normal operation of a further axle modulator or a pneumatic redundancy mode of the further axle modulator or an electropneumatic redundancy module , the electronic control unit (ECU) being designed to receive a redundant parking brake signal (SR) which indicates or requests that redundant control of service brakes of the further axle is carried out, and in this case the electronic control unit (ECU) provides the shut-off signal (SA) to the shut-off valve . a central module for controlling the brake system , comprising a rear axle service brake control, at least one first brake circuit and one parking brake circuit , an electropneumatic parking brake assembly having first spring-loaded brakes on a rear axle (HA) and second spring-loaded brakes on a further axle (VA, ZA) comprising a shut-off valve , and a parking brake module , the parking brake module comprising a supply connection for connecting to a compressed air supply , a first spring-loaded connection for connecting the shut-off valve , an electropneumatic valve unit having at least one electropneumatic valve for modulating a spring-loaded brake pressure (pF) at the first spring-loaded connection , and an electronic control unit (ECU) for receiving parking brake signals (S1, S2, SR) from an electronic parking brake switch (HCU) and/or a master control unit , the shut-off valve having a second spring-loaded connection for connecting spring-loaded brakes of the further axle (VA, ZA) and shutting off the second spring-loaded connection in response to a shut-off signal (SA) provided by the parking brake module , characterized in that the electropneumatic parking brake module is designed to provide the shut-off signal (SA) when, in the event of a fault in the rear axle service brake control system, the further axle (VA, ZA) is controlled by normal operation of a further axle modulator or a pneumatic redundancy mode of the further axle modulator or an electropneumatic redundancy module , the electronic control unit (ECU) being designed to receive a redundant parking brake signal (SR) which indicates or requests that redundant control of service brakes of the further axle is carried out, and in this case the electronic control unit (ECU) provides the shut-off signal (SA) to the shut-off valve . <EOS>