Страница 1 мировой engineering стандарты общая спецификация

Page 250
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Note: 
An ECU that was SPS_TYPE_C prior to being successfully programmed is required to be capable of
reporting its diagnostic address once it is fully programmed and executing operational software.
•
The programming tool shall be able to connect to the DLC with the vehicle in any power mode without
causing damage to any ECU or components attached to the physical I/O pins of any ECU.
•
The sequence of signals during connection to the DLC shall not cause any degradation in performance or
damage to the ECU or components attached to the physical I/O pins of any ECU.
•
All ECUs shall meet the frame padding requirements as outlined in paragraph 4.6 of this specification.
9.3 Requirements for SPS Programmable ECUs to Support Programming.
9.3.1 Hardware Requirements. 
All ECUs that are SPS programmable must be able to interface with the
programming tools used by development, the assembly plant, and by service via the appropriate GMLAN pins
of the vehicle 16-pin DLC specified in GM J1962. The only power required at the DLC for programming shall
be vehicle battery power.
Any ECU that is properly installed in the vehicle and is SPS programmable shall be able to be programmed via
the DLC. It shall not be required to remove the ECU from the vehicle in order to perform programming.
9.3.1.1 Memory Requirements.
The ECU memory shall be permanently affixed (non-removable) to the circuit board.
There are three different types of memory required that can be categorized into the following retention levels.
Examples of memory that is typically used for each memory type is given in parenthesis. All voltage levels (Vp)
are at the ECU connector and apply to the primary power pin.

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1. Type 1 memory (typically RAM) contents shall be capable of being retained while