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How does the time credit process work?
The diagnostic account balance is checked every time diagnosis is launched for a specific vehicle from the XENTRY frame. If there is no credit unit that is currently active or "running", the next available unit will be used. The credit unit will then start to run from this time on, even once the diagnostic process, or XENTRY, is terminated. This means, for example that a one-hour credit is valid for exactly one hour after activation, even if the user only performs a few minutes of diagnostic work and then exits XENTRY. If the user launches the diagnostic program after this one-hour time frame, a new credit unit will be...