Страница 1 мировой engineering стандарты общая спецификация

Page 293
GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
Appendix B: Corporate Common CPID Definitions
The following section contains the list of CPID(s) and functionality which has been standardized for all nodes.
A node which implements any of the corporate common CPIDs shall use the corporate common CPID number
assigned and adhere to the bit and byte level positions defined. Corporate common CPIDs shall always
contain a fixed number of bytes (the number may vary from one common CPID to another) even though a
device may choose to not implement all of the functions defined for that CPID. Nodes 
shall not 
add additional
device control features into a corporate common CPID.
B1 CPID $FE
Table B1: Corporate CPID $FE Definition
Control
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0

---

25.06.2020
WORLDWIDE ENGINEERING STANDARDS General Motors Local Area Network Enhanced Diagnostic Test Mode Specification
https://translate.googleusercontent.com/translate_f
260/298
© Copyright 2010 General Motors All Rights Reserved
February 2010
Page 293 of 336
Byte #
1
Theft
Deterrent
Relearn
1 = ENABLE
0 = DISABLE
Theft
Deterrent
EEPROM
Access
1 = ENABLE
0 = DISABLE
2
3
4
5
B1.1 Theft Deterrent Relearn. 
A scan tool implementation of this device control allows the user to request
that the Powertrain or Engine Control Module (PCM/ECM) relearn the new password from the vehicle theft
deterrent controller. Upon receipt of this device control, the PCM/ECM shall verify that none of the device
control limits are exceeded and begin a ten minute timer. The scan tool is not required to remain connected for
the next ten minutes. Therefore, the PCM software shall not expect a Mode $3E message to be sent every P3
C
ms. The PCM/ECM must remain powered (ignition must not be cycled to OFF) for the next ten minutes. When
the ten minutes have expired, the PCM/ECM will be armed to learn the new password on the next powerup.
This device control will only be allowed if all the following are TRUE:
1. PCM/ECM is unsecured (unlocked) or reject with ($7F $AE $31) message.
2. Engine is not running or reject with ($7F $AE $E3 $FE $01); $FE $01 is the limit exceeded.