Volvo Premium Tech Tool 1.12 Volvo VCADS 2. Download Prime Directive Rpg Pdf Software on this page. 41 diagnostic tool for Volvo Trucks, Volvo Buses, Volvo Construction Equipment, Mack Trucks, Renault Trucks, UD Trucks. Volvo Premium Tech Tool 1.12 / Volvo VCADS 2.41 tool to assist customers and bodybuilders in performing their own diagnostic work on Volvo engines. Volvo VCADS all functions work, intermediate storage support. PTT is a Windows-based diagnostic application specially designed to test, calibrate and program engine parameters. This software supports VN, VT, VHD, WG, WX and AC from model year ’98 forward. Tests for fault tracing of Volvo D7C, D11F, D12B, D12C, D12D, D13F, D16D and D16F engines are incorporated into PTT. Many funtions in today's modern vehicles are controlled by electronic control units(ESUs).