ProvidedbyIHSunderlicensewithISONoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleINTERNATIONALSTANDARDISO14229-2Firstedition2013-02-15Roadvehicles—Unifieddiagnosticservices(UDS)—Part2:SessionlayerservicesVéhiculesroutiers—Servicesdediagnosticunifiés(SDU)—Partie2:SéquencedescouchesdeservicesCopyrightInternationalOrganizationforStandardization--`,,```,,,,````-`-`,,`,,`,`,,`---ii©ISO2013–AllrightsreservedCopyrightInternationalOrganizationforStandardizationProvidedbyIHSunderlicensewithISONoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleReferencenumberISO14229-2:2013(E)©ISO2013ISO14229-2:2013(E)ProvidedbyIHSunderlicensewithISONoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleCOPYRIGHTPROTECTEDDOCUMENT©ISO2013Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56CH-1211Geneva20Tel.+41227490111Fax+41227490947E-mailcopyright@iso.orgWebwww.iso.orgPublishedinSwitzerland--`,,```,,,,````-`-`,,`,,`,`,,`---©ISO2013–AllriiiiCopyrightInternationalOrganizationforStandardizationghtsreservedProvidedbyIHSunderlicensewithISONoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleISO14229-2:2013(E)ContentsPage1Scope.....................................................................................................................................................12Normativereferences..............................................................................................................................13Terms,definitionsandabbreviatedterms...................................................................................................13.1Termsanddefinitions..............................................................................................................................13.2Abbreviatedterms..................................................................................................................................24Conventions...........................................................................................................................................25Documentoverview.................................................................................................................................36Sessionlayerservices.............................................................................................................................46.1General..................................................................................................................................................46.2Specificationofsessionlayerserviceprimitives..........................................................................................66.3Sessiondataunitspecification.................................................................................................................77Timingparameterdefinition......................................................................................................................97.1Generalapplicationtimingconsiderations.......................................................................................