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

GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 187 of 336 
Note:
Since current draw during a programming event may drain a battery, nodes should failsoft to a state 
which draws only necessary current. 
8.17.2 Request Message Definition (Table 165). 
Table 165: ProgrammingMode Request Message 
Data Byte Parameter Name 
Cvt 
Hex Value Mnemonic 
#1 
ProgrammingMode Request Service Id 
M 
A5 
SIDRQ 
#2 
sub-function = [
requestProgrammingMode 
requestProgrammingMode_HighSpeed 
enableProgrammingMode] 
M 
01 
02 
03 
LEV_ 
RQPM 
RQPM_HS 
RQ_EPM 
8.17.2.1 Request Message Sub-Function Parameter $Level (LEV_) Definition. 
The sub-parameters for this 
service are indicated in Table 166. 
Table 166: Definition of Sub-function Values 
Hex 
Description 
Cvt 
00 
reservedByDocument 
This value is reserved by this document. 
M 
01 
requestProgrammingMode 
Request by the tester to verify the capability of the node(s) to enter into a normal speed 
programming event. 
M 
02 
requestProgrammingMode_HighSpeed 
Request by the tester to verify the capability of the node(s) to enter into a high speed 
programming event. 
M
1
03 
enableProgrammingMode 
Request by the tester to have the node(s) enter into a programming event. This can only 
be sent if preceded by one of the valid requestProgrammingMode messages (above). 
M 
04 thru 
FF 
ReservedByDocument 
These values are reserved by this document for standardized expansion. 
M