Going From Progman To Diagnosis On GT1
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If using a GT1 it is possible to switch from Progman to a diagnostic function.
From the Progman home screen select "Change"
The GT1 will switch to diagnostics and a new diagnostic session can be started by connecting to an available interface, if nothing was previously active.
Or
If a diagnostic session was previously active then the system will return to that point, prior to having switched over to Progman.