
ECUs control components such as the engine, instrumentation and certain vehicles funtions.Tech Tool is a tool that supports the repair and diagnostic process it was developed to make repair shop tasks easier and more efficient. Many functions in today's modern vehicles are controlled by Electronic Control Units (ECUs). Volvo Tech Tool 2.5.55 (PTT VCADS) Premium Tech Tool (PTT) - diagnostic application specially designed to test, calibrate and program engine parameters.
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