Страница 1 мировой engineering стандарты общая спецификация

9.3.5 ECU Supplier Requirements. 
Boot software shall be programmed by the ECU supplier.
If the ECU supports the SecurityAccess ($27) service for SPS programming then the supplier shall program a
random seed and the corresponding key value assigned by GM Service and Parts Operations into the ECU
during the ECU manufacturing process.
The utility file necessary for SPS programming shall be developed by the ECU supplier.
The CTS shall specify if operational software and/or calibrations are to be programmed by the supplier.
9.3.6 Assembly Plant Requirements. 
The cumulative time to program all ECUs in the vehicle assembly
process shall be less than the maximum time specified in the General Assembly Programming And Test

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section of the GM Bill Of Process (BOP).
The ECU received at the vehicle assembly plant must be externally identifiable prior to installation into the
vehicle.
All ECUs that implement the SecurityAccess service for SPS programming shall be shipped to the vehicle
assembly plant with the security mechanism unlocked (via the use of the MEC). Refer to paragraph 9.3.2.6 for
specifics.
Note: 
The MEC is not required to be supported in the boot software if the ECU is always unlocked when
operating out of the boot software. Even though the boot software may not evaluate the value of the MEC, the
memory address where the MEC is located shall be initialized as documented in paragraph 9.3.2.6.2.
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GM WORLDWIDE ENGINEERING STANDARDS