J2534-1 functions for pass-thru communication with vehicle from manufacturer diagnostic software.　Primitive functions for communicating with vehicle.

This document describes a standardized system for programming that includes a standard personal
computer (PC), standard interface to a software device driver, and an interface that connects between the
PC and a programmable ECU in a vehicle. The purpose of this system is to facilitate programming of
ECUs for all vehicle manufacturers using a single set of programming hardware. Programming software
from multiple vehicle manufacturers will be able to execute on this set of hardware to program their
unique ECUs.