SAE J2037 pdf download
SAE J2037 pdf download.Off-Board Diagnostic Message Formats.
The utilities defined for J2037 are designed to facilitate manufacturing and service diagnosis requirements.
Definition of the capability includes definition of standard messages and the dialogue necessary to provide the capability. The standard messages will be distinguished by the contents of the first data byte which specifies the diagnostic operation. Note that Some vehicle applications will not require the irrlementation of all the defined diagnostic capabilities, and consequently, these applications will not support all message modes.
Z References
2.1 Applicable PublicatIons—The following publications form a part of this specification to the extent specified
herein. The latest issue of SAE publications shall apply.
I at .1 SAE PuoucATloNs—Available from SAE. 400 Commonwealth Drive, Warrendale, PA 15096-0001,
SAE J1850—Class B Data Communication Network Interface
SAE J2054—E!E Diagnostic Data Communication
SAE J2062—A Class B Senal Bus Diagnostic Protocol
SAE J2086—An Applied Layer Protocol for a Generic Scan Tool
3. J1850 has been advanced by the SAE as a Recommended Practice for vehicle multiplex applications. Government emissions regulatory agencies have indicated that adoption of the J1850 format may be an acceptable step forward toward standardization of vehicle diagnostics.
Further definition beyund J1850 is necessary in order to accomplish the desired standardization. The specifications contained in J1850 address only the lower layers of the seven layer ISO Open System model. Agreement in the content of the message fields defined by J1850 needs to be established. This document proposes a set of message definitions which are both compatdle with J1850 and suitable for accorrlishing the general requirements of off-board diagnostics.
