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International Automotive Technicians Network
Re: Diagnostic Stopping Point
Posted to Open Discussion Forum on 8/23/2014

I have to agree with Dean as well , at this point in time I have two John Deere 6620 4x4 tractors parked outside the shop that have dead batteries . The tractors are that heavily loaded with electronic controls and remote sensors that they will not function at all , unless there is a solid base voltage to work with . Even the local JD dealer will not service the units they get in to work on unless the batteries are good to begin with .

Roger Rutledge
Technician/Shop Foreman
Green Park Services
Brantford, Ontario, Canada