Diagnostic John Deere CAN and Connectivity Health Wizard v1.21.4.7

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The CAN and Connectivity Health Wizard (the Wizard) is a computer-based tool with three different
“health checks”:
System Health - a test of the computer software files and drivers required to run Service ADVISOR™.
Connectivity Health - a test of the ability of the computer to communicate with the EDL and the EDL
to communicate with the engine ECU or ECM via CAN for a Service ADVISOR diagnostic or
reprogramming session. Once connectivity has been confirmed, the test permits verification of the
machine being in a state where engine ECU or ECM reprogramming is possible. If engine ECU or ECM
reprogramming fails, the test can be used to analyze the reprogramming failure.
CAN Health - a live display of information regarding the machine’s CAN bus to assist in the diagnosis
of machine CAN bus issues.
The Wizard is a stand-alone application which is launched from a desktop icon. The Wizard is designed to
have the familiar appearance of Service ADVISOR. Like Service ADVISOR, the Wizard can be started in an
online or offline mode depending on internet availability.
The Wizard opens to a dashboard (Figure 1) which permits the user to select the problem they are trying
to solve and be directed to the applicable health check in the Wizard. For example, if diagnosing a
problem where Service ADVISOR connects to the engine ECU or ECM, but the machine is setting DTCs
indicating CAN issues, click on the “Machine CAN problems” tile which will launch CAN Health.