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

 
$00 to 
(Num_Supported_CPIDs - 1) 
CPID_Array[] 
This is a multi-dimensional array of pointers and data used by the device 
control application. Data in this array includes the CPID number, whether or not 
the CPID requires security access, whether or not the CPID requires security 
code access, the length of the control bytes for a given CPID, and the actual 
control data bytes. The pseudo code uses the CPID number, security status, 
and length. These values are accessed in the pseudo code using the following 
notation:
 
N/A 
CPID_Array[].CPID 
This variable is the CPID Identifier number
 
$01 to $FE 
CPID_Array[].Security 
This is a flag used to track whether or not a CPID requires security access 
before allowing the activation of any of the functions controllable via this CPID.
 
YES/NO 
CPID_Array[].Length 
This variable defines the expected number of bytes for a given CPID. It is used 
to compare against the number of control bytes in the request message to 
validate that the request is correctly formatted.
 
$00 to $05 
CPID_Array[].SecurityCodeAccess 
This is a flag used to track whether or not a CPID requires security code 
access before allowing the activation of any of the functions controllable via this 
CPID. 
YES/NO 
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GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 244 of 336 
Variable/Meaning 
Values 
Secure_CPID 
This is a flag which is used to keep track of whether or not the requested CPID 
is one which requires security access.
 
YES/NO