This amendment adds information pertaining to motor vehicle event data recorder connector lockout apparatus (MVEDRCLA) by revision.

Motor Vehicle Event Data Recorders (MVEDRs) collect, record, store and export data related to pre-defined events in usage history. This amendment defines a lockout protocol for MVEDR output data accessibility by securing the vehicle output diagnostic link connector (DLC). This standard does not prescribe data security within the vehicle electronic control units (ECUs) or within the intra-vehicle communication and/or diagnostic networks but instead defines ways and means to permit uniform, but controlled access of electronic scan tools to the DLC for legitimate vehicle emissions status, maintenance and/or repair. This standard also defines a means of maintain...

Change the purpose as follows: Many light-duty vehicles, and increasing numbers of heavy commercial vehicles, are equipped with some form of MVEDR. These systems, which are designed and produced by individual motor vehicle manufacturers and component suppliers, are diverse in function and proprietary in nature, however, the SAE J1962 [Bxx] (ISO 15031-3:2004 [Bxx]) vehicle DLC has a common design and pinout, and is thus universally used to access event data recorder information.2 Data access via the DLC can be accomplished by using scan tools or microcomputers and network interfaces. This same DLC and network interface is also used for re-calibrating electron...