The diagram, of course, is not showing any of the ECU itself. This path is part of the junction block that the ECU attaches to. It might be unclear just what "board" you have swapped. Swapping the body ECU would not be expected to correct a weird reading on this test. Alldata seems...
FIG. 26 is diagram of a user interface for cloud based display of vehicle data in a graph on a client device. FIGS. 27A through 27K are diagrams of user interfaces for cloud based updates to ECU profiles. FIG. 28 is a schematic of a local device that connects to a mobile network. ...