General Specification Electrical Function gmw3110 General Motors Local Area Network Enhanced Diagnostic Test Mode Specification

Figure 13: Application Triggered Diagnostic VN - Deactivation after Transmission of USDTResponse 
and Diagnostic Mode Is Not Active 
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GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 46 of 336 
UUDT resp.
UUDT resp.
UUDT resp.
N_UUData.req
GMLAN
Handler
Diagnostic
Application
:
Timeout
Tester
COMM_ACTIVE
Communication State
COMM_ENABLED
ECU_READY
application
triggered
diagnostic
VN active
VN deactivated
N_UUData.con
N_UUData.req
N_UUData.con
N_UUData.req
N_UUData.con
response
4-8 sec
Enable
Appl_Diag_VN_Timer
(diagnostic
mode is not active)
Deactivate application
triggered diagnostic VN
DIAG_ACTIVE
TIMER_OFF
DIAG_ACTIVE
TIMER_ON
DIAG_INACTIVE
Application State
DIAG_DISABLED
Note:
It is assumed that the application triggered diagnostic VN is the only active VN. 
Figure 14: Application Triggered Diagnostic VN - Deactivation after Transmission Of Multiple UUDT 
Responses Without Diagnostic Mode Active 
5.2.8 Verification of Diagnostic VN Deactivation. 
This section specifies the method on how to check 
whether a node correctly deactivates the initially active and the application triggered diagnostic VN. It takes 
into account the definitions in the previous sections.