Decelerator or Hand Throttle (STD cab) 5 Volt Supply voltage is too low
Foot Throttle 5 Volt Supply voltage is too low (engine controller pin B29)
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.