Страница 1 мировой engineering стандарты общая спецификация

After sending the ReturnToNormalMode ($20) request, the Tester must wait 1 s to allow
sufficient time for all nodes to reset and synchronize.
•
The tester suspends transmission of Tester Present ($3E) messages at this time.
Note: 
Following a ReturnToNormalMode ($20) service the determination of the diagnostic addresses and
diagnostic CAN Identifiers (using the service $1A with DataIdentifier $B0) is performed automatically prior to
the execution of a diagnostic service. See Table 232, Step 29.

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WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
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February 2010
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Page 279
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Following the ReturnToNormalMode ($20) service additional action can be performed for each ECU (utility file
driven - interpreter execute) to finalize the programming. This part contains all steps required to finally
conclude a programming event of a single ECU. For some nodes it may be required to write data after the
software reset, when the operational software is running. Those steps are contained in the ECU specific utility
file. See Table 232.
This part is utility file driven except for the determination of the GMLAN communication parameters (CAN
Identifiers).
Table 232: Optional Utility File Steps Following the Programming Conclusion Step
Step Action
27
Wake-up link(s) - 
High voltage wake-up for SWCAN 
- gateways may cascade wake-ups (where
applicable) across to the other subnets on the vehicle or the tester may need to use 
level $04 
of
diagnostic service