Страница 1 мировой engineering стандарты общая спецификация

Page 82
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Send negative response ($7F $10 $12) /*for SubfunctionNotSupported-InvalidFormat */
valid_request ←
NO
ENDSELECT

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ENDIF
IF (valid_request = YES)
Send ($50) positive response message
ENDIF
ENDFUNCTION
8.2.7 Node Verification Procedure.
Procedure 1:
1. Send a $10 message with an invalid $level parameter and verify the negative response ($7F $10 $12).
2. Send a $10 message without a sub-parameter included and verify the negative response ($7F $10 $12).
3. Send a $10 message with data bytes after the sub-parameter and verify the negative response ($7F $10
$12).
4. If negative response code $78 is supported by the ECU, then create the conditions under which the ECU
should return the $7F $10 $78 response and verify that proper response is sent.
5. Repeat the previous step of this procedure for each possible reason an ECU would send the negative
response with response code $78.
Procedure 2: 
(if sub-function $02 is supported).
1. Send a $10 message with the sub-function parameter set to $02 (disableAllDTCs).
2. Create a failure which would set a DTC and verify that no DTC is set.
3. Send TesterPresent messages for 2 minutes and then verify that no DTCs are set.
4. Stop sending diagnostic messages for P3
Cmax 
ms (ensures a TesterPresent timeout to enable DTCs) and
verify that the appropriate DTC is set (once all the criteria to set the DTC have been fulfilled).
5. Repeat steps 1 through 3 of this procedure, and then send a $20 service request. Verify the appropriate
response to the service $20 and then check that the appropriate DTC is set (once all the criteria to set the
DTC have been fulfilled).