ALLISON DOC FLEETS IS FOR ANY SERVICE LOCATION WITH AN INTEREST IN PERFORMING FUNDAMENTAL DIAGNOSTICS FOR ALLISON ELECTRONICALLY-CONTROLLED COMMERCIAL TRANSMISSIONS. ALLISON DOC FLEETS SUPPORTS THE 4TH, 5TH AND 6TH GENERATION TCMS (1000/2000, 3000/4000, TC10 AND OFF-HIGHWAY PRODUCT FAMILIES) WITH THE LATEST FEATURES AS WELL AS LEGACY CONTROL SYSTEMS (PRE-4TH GENERATION 1000/2000, WTEC 2 AND WTEC 3). THE ALLISON DOC FLEETS PRODUCT CANNOT CONNECT TO H 40/50 EP OR CEC2 SYSTEMS.