Komatsu PC200-7 Behaving differently

While checking the differential presssure of Rare pump while operating right track, rare pump differential pressure is shown normal and front pump pressure should be unload pressure and LS pressure should be 0.But it shows some thing different, front pump pressure is shown around 200 kg per square cm and LS is 0. Even after removing merge diveder solenoid jack same is shown which is vwry weired. HOw is this possible and what is the problem here...... Pls Help

Komatsu PC200-7 Behaving differently