Electronically controllable pneumatic brake system in a vehicle , in particular a commercial vehicle , comprising at least: wheel brakes for braking wheels of the vehicle , wherein a service brake braking pressure (p1, p2, p3, p4) may be specified by axle modulators to the wheel brakes in dependence upon a service brake control pressure (pA, pB), a foot brake valve for the pneumatic specification of the service brake control pressure (pA, pB) to the axle modulators , wherein the service brake control pressure (pA, pB) may be generated by means of the foot brake valve in dependence upon a mechanical specification (V1) or in dependence upon an electropneumatic specification (V2), and a bypass valve arrangement for specifying a foot brake input pressure (pE) to the foot brake valve , said foot brake input pressure (pE) being used as an electropneumatic specification (V2), wherein the bypass valve arrangement specifies a low pressure level (pLow) to the foot brake valve in a first switch position (Z1) and said bypass valve arrangement specifies a high pressure level (pHigh) to the foot brake valve in a second switch position (Z2) as an electropneumatic specification (V2) with the result that the foot brake input pressure (pE) may be specified in dependence upon the low pressure level (pLow) and/or in dependence upon the high pressure level (pHigh), characterized in that the bypass valve arrangement is connected to a venting chamber of the foot brake valve so as to conduct flow with the result that the foot brake input pressure (pE) that is specified by the bypass valve arrangement may be passed through as an electropneumatic specification (V2) via the venting chamber and an operating chamber of the foot brake valve directly to the axle modulators as a service brake control pressure (pA, pB). wheel brakes for braking wheels of the vehicle , wherein a service brake braking pressure (p1, p2, p3, p4) may be specified by axle modulators to the wheel brakes in dependence upon a service brake control pressure (pA, pB), a foot brake valve for the pneumatic specification of the service brake control pressure (pA, pB) to the axle modulators , wherein the service brake control pressure (pA, pB) may be generated by means of the foot brake valve in dependence upon a mechanical specification (V1) or in dependence upon an electropneumatic specification (V2), and a bypass valve arrangement for specifying a foot brake input pressure (pE) to the foot brake valve , said foot brake input pressure (pE) being used as an electropneumatic specification (V2), wherein the bypass valve arrangement specifies a low pressure level (pLow) to the foot brake valve in a first switch position (Z1) and said bypass valve arrangement specifies a high pressure level (pHigh) to the foot brake valve in a second switch position (Z2) as an electropneumatic specification (V2) with the result that the foot brake input pressure (pE) may be specified in dependence upon the low pressure level (pLow) and/or in dependence upon the high pressure level (pHigh), characterized in that the bypass valve arrangement is connected to a venting chamber of the foot brake valve so as to conduct flow with the result that the foot brake input pressure (pE) that is specified by the bypass valve arrangement may be passed through as an electropneumatic specification (V2) via the venting chamber and an operating chamber of the foot brake valve directly to the axle modulators as a service brake control pressure (pA, pB). <EOS>