Страница 1 мировой engineering стандарты общая спецификация



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WORLDWIDE ENGINEERING STANDARDS General Motors Local Ar

Procedure 5:
1. Send a service $AA without sub-function parameter and DPID parameters. Verify negative response ($7F
$AA $12).
2. Verify that a service $AA request with all non-supported sub-function parameters is negatively responded
to with a negative response ($7F $AA $12).
Procedure 6: 
(Additional checks for ECUs that support dynamic DPIDs.)
1. Verify that a dynamic DPID can be redefined using the service $2C while that DPID is currently in the
periodic scheduler. Verify that the data is correct for the newly defined DPID by the second transmission of
that DPID after the $2C positive response. (The first response of that DPID may be invalid since the DPID
may have already been queued for transmission prior to the redefinition).
2. Request a dynamic DPID prior to defining its contents via the $2C service. Verify that a positive response
is sent with no data after the DPID number.
3. Repeat step 2 for all supported one shot and periodic rates.
Procedure 7: 
(Additional checks if the ECU supports negative response code $78.)
1. Create conditions under which the ECU should return the $7F $AA $78 response. Send a valid request for
this service (including applicable sub-function parameter) and verify that the $7F $AA $78 response is
received followed by the appropriate final response within the P2
C* 
timing window.
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25.06.2020
WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
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© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 235 of 336
2. Repeat step 1 of this procedure for each possible reason an ECU would send the negative response with
response code $78. Verify this for each applicable supported sub-function parameter.

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