Страница 1 мировой engineering стандарты общая спецификация

Page 132
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 132 of 336
ELSE
send a ($7F $27 $35) message
ENDIF
ELSE
Security_Access_Unlocked ←
TRUE
TesterPresent_Timer_State ←ACTIVE
SPS_Bad_Key_Counter ←
2
Send ($67 $02 ) message.
ENDIF
ELSE
send Negative Response ($7F $27 $22) /*Sequence Error */
ENDIF
WHEN ($Level=$03)
IF (Security_Delay_Timer > 0) THEN
Send ($7F $27 $37) /* Time Delay Not Expired */
ELSE IF ((Dev_Cntrl_Active = YES) AND
(DeviceContol_Security_Level = SERVICE)) THEN
send ($7F $27 $22) /* conditions not correct or sequence error*/
ELSE
IF ((DeviceContol_Security_Level = ASSEMBLY_PLT) OR
(manufacturers_enable_counter > 0) OR
(Vulnerability_flag=$FF)) THEN
DeviceContol_Security_Level ←
ASSEMBLY_PLT
TesterPresent_Timer_State ←ACTIVE
Send ($67 $03 $00 $00) message
ELSE
DevCtrl_Security_Key_Allowed ←
TRUE
Send ($67 $03 $Seed) message
ENDIF
ENDIF
WHEN ($Level=$04)
IF (DevCtrl_Security_Key_Allowed = FALSE) THEN
send ($7F $27 $22) /* conditions not correct or sequence error*/
DevCtrl_Security_Key_Allowed ←
FALSE
ELSE
DevCtrl_Security_Key_Allowed ←
FALSE
IF ($Key does not match stored key) THEN
DevCtrl_Bad_Key_Counter ←
DevCtrl_Bad_Key_Counter - 1
IF (DevCtrl_Bad_Key_Counter = 0) THEN
Security_Delay_Timer←10 s
DevCtrl_Bad_Key_Counter ←
1
send ($7F $27 $36) /* for Exceeded Number Of Attempts */
ELSE
send a ($7F $27 $35) message
ENDIF
ELSE
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25.06.2020
WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
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