Страница 1 мировой engineering стандарты общая спецификация

GMW3110
9.4 ECU Programming Process. 
The overall programming procedure is comprised of the following
sub-processes:
a. Read Identification Information. This is a single path consisting of all the steps required to retrieve the
necessary ECU identification data for a proper selection of the data in the SPS database. This step is
required for service, not necessarily for assembly plant programming.
b. Retrieve SPS data. This is a single path consisting of all steps required to retrieve the proper SPS data out
of the SPS database. The selection is based on information read during step a. (service) or known in
advance (assembly plant).
c. Programming Session.
1. 
Setup (Pre-Utility File). 
This is a single path consisting of all the steps necessary to identify the target
node(s), and prepare the GMLAN link(s) for the programming event. All steps of the pre-utility file
process, except certain steps required for the verification process, are functionally addressed to all
nodes on the GMLAN sub-networks.
2. 
Utility File. 
These are all the steps defined within the utility file(s) for the target node(s). This may be a
single path of steps (in the case of a single node being programmed or multiple nodes programmed
sequentially), or multiple paths if multiple nodes are being programmed in parallel (multiple utility files
running in parallel). This path also includes steps to conclude a programming event (synchronization
between utility files running in parallel). All diagnostic services contained in one utility file are physically
addressed to the ECU to be programmed to allow for parallel programming.
9.4.1 Read Identification Information Process. 
The following steps are required to read the necessary
identification data out of the vehicle in order to retrieve the correct data out of the SPS data base. All steps are
performed automatically they are not utility file driven. See Table 227.
Note: 
All steps defined are required for field service programming and are not necessarily required for
assembly plant programming.