A system for monitoring an electrohydraulic servo valve , comprising: a brake control unit ; a valve monitoring sensor configured to measure at least one of a pressure or a fluid flow rate in a conduit fluidly connected to a control port of the electrohydraulic servo valve; and a tangible, non-transitory memory configured to communicate with the brake control unit, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the brake control unit, cause the brake control unit to perform operations comprising: receiving, by the brake control unit , a brake command; outputting, by the brake control unit, a pressure signal to the electrohydraulic servo valve based on the brake command; receiving, by the brake control unit, a sensor signal from the valve monitoring sensor ; characterised by determining, by the brake control unit, an upper pressure threshold based on a current of the pressure signal; determining, by the brake control unit, a lower pressure threshold based on the current of the pressure signal; determining, by the brake control unit, the pressure in the conduit based on the sensor signal; and comparing, by the brake control unit, the pressure in the conduit to the upper pressure threshold and the lower pressure threshold; and determining, by the brake control unit, a health of the electrohydraulic servo valve based on the comparison of the pressure in the conduit to the upper pressure threshold and the lower pressure threshold. a brake control unit ; a valve monitoring sensor configured to measure at least one of a pressure or a fluid flow rate in a conduit fluidly connected to a control port of the electrohydraulic servo valve; and a tangible, non-transitory memory configured to communicate with the brake control unit, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the brake control unit, cause the brake control unit to perform operations comprising: receiving, by the brake control unit , a brake command; outputting, by the brake control unit, a pressure signal to the electrohydraulic servo valve based on the brake command; receiving, by the brake control unit, a sensor signal from the valve monitoring sensor ; characterised by determining, by the brake control unit, an upper pressure threshold based on a current of the pressure signal; determining, by the brake control unit, a lower pressure threshold based on the current of the pressure signal; determining, by the brake control unit, the pressure in the conduit based on the sensor signal; and comparing, by the brake control unit, the pressure in the conduit to the upper pressure threshold and the lower pressure threshold; and determining, by the brake control unit, a health of the electrohydraulic servo valve based on the comparison of the pressure in the conduit to the upper pressure threshold and the lower pressure threshold. receiving, by the brake control unit , a brake command; outputting, by the brake control unit, a pressure signal to the electrohydraulic servo valve based on the brake command; receiving, by the brake control unit, a sensor signal from the valve monitoring sensor ; characterised by determining, by the brake control unit, an upper pressure threshold based on a current of the pressure signal; determining, by the brake control unit, a lower pressure threshold based on the current of the pressure signal; determining, by the brake control unit, the pressure in the conduit based on the sensor signal; and comparing, by the brake control unit, the pressure in the conduit to the upper pressure threshold and the lower pressure threshold; and determining, by the brake control unit, a health of the electrohydraulic servo valve based on the comparison of the pressure in the conduit to the upper pressure threshold and the lower pressure threshold. <EOS>