This Recommended Practice aims to utilize existing industry standards to define a common physical interface and the protocols necessary for Event Data Set extraction. To accomplish this, the SAE J1962 Diagnostics Connector has been designated the primary physical interface and associated industry standard diagnostic protocols have been designated for communications.

LIMITATIONS

• It is intended that this Recommended Practice shall be usable for the development of Event Data extraction tools intended to interface with light duty vehicles.

• While this Recommended Practice defines common methods for the extraction of Event Data to the greatest extent practical, it is not intended to standardize the content of the Event Data Set saved by an individual light duty vehicle.

• It shall be at the discretion of each affected vehicle manufacturer to make available the information necessary to convert the Event Data Set into an Event Record consistent with J1698.

• This Recommended Practice does not take into account the multitude of factors that must be considered in order to enable a user to directly connect a tool to on-vehicle or off board data storage device(s) and extract data. Rather, it is at the discretion of each light duty vehicle manufacturer to provide the information necessary to extract data via a direct connection to specific data storage device(s).