Professional repair shops need current, factory-correct information to meet the complex repair demands of today's automotive industry. estimates and proof of diagnostic and repair procedures. also includes factory-correct maintenance schedules that itemize other repair facilities. ALLDATA-equipped shops can provide their customers with the most accurate repair Automotive repair shops that use the ALLDATA system have a clear differentiation from ALLDATA shops have fast access to the industry's information for vehicles from 1982 to present including TSBs, maintenance schedules,.syi