PX Power Source has launched an all-in-one diagnostic scan tool dedicated to school buses. The FCAR F3SN can be used to diagnose IC Bus, Blue Bird and Thomas Built buses along with Cummins, International, Caterpillar and Detroit engines. The F3SN can also communicate with Allison transmissions and Meritor WABCO and Bendix brake systems. The touch-screen diagnostic scan tool is powered by a Samsung processor and comes with a built-in printer. The basic functions of the F3SN are to read and clear diagnostic trouble codes, read the open source data stream, read system information and perform special action tests.