UDS stands for Unified Diagnostic Services and as the name contain “Diagnostic” and you know very well that diagnostic is basically a technique to identify any kind of illness and here this illness(fault) belongs to Vehicle.
So basically UDS is an standard by ISO which offers some unified(Uniform for All ECU Suppliers) services through which a UDS enabled diagnostic tool can perform off-board(When Vehicle in Garage) diagnosis for faulty ECU.
Although It will more clear when you go through the UDS specification yet in this tutorial, I have tried to
|Part 1||Unified Diagnostic Services||Duration|
|2||UDS Message Structure||.5|
|3||UDS Application Layer Services||.5|
|Part 2||UDS-Functional Units||Duration|
|1||Diagnostic and Communication Control Unit||1|
|2||Data Transmission Unit||.5|
|3||Stored Data Transmission Unit||.5|
|4||Input/Output Control Unit||.5|
|5||Remote Activation Of Routine||.5|
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