Hi, we have a Deere 300D series II and have 2 active codes. 1) CCU 46.3 pneumatic press voltage high : unknown air press it does not tell me the count or hrs. 2) CCU 520857.5 pneu blow off sol: current low 16 times in the last 26 hours. Would anyone have thoughts if this could be an air pressure sensor? Thank you
Found the problem...... corroded electical din plug on the air tanks purge valve.