Rear Diff Lock solenoid failed. Possible Failure modes: 1. Diff Lock solenoid coil failed 2.Damaged wiring 3. Loose connector or bent pin 4. TCU Internal failure
3-point Hitch Fails To Lift,Low oil level.Worn hydraulic pump.Rate of drop valve closed.Excessive load on hitch.Hydraulic oil too cold.Hydraulic oil suction filter plugged.