How to solve “Connection Failed” for John Deere Service Advisor EDL V3?

Some customers meet the problem “Connection Failed”,check below picture,how to solve it?

First,you have to make sure that you connected the machine and keep ignition on.Then choose EDL V1 V2 to connect,please check the picture with remarked area.After changing it,you can work it well.

Because John deere V3 use the drive of EDL V2

John Deere Diagnostic kit includes software John Deere Service Advisor Agriculture or Construction and Forestry version.John Deere Service Advisor Agriculture workshop service manual, repair manual, electrical wiring diagram, hydraulic diagram, diagnostic, assembly and disassembly engine, transmission.

John Deere Service ADVISOR 5.3 AG Agricultural + 5.3 CF Construction & Forestry Diagnostic Software

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