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GM WORLDWIDE ENGINEERING STANDARDS
GMW3110
information in the utility file (reference the programming chapter within this specification and also the
Interpreter Specification listed in the Normative References section of this specification for more details).
8.13.2 Request Message Definition. 
Table 138 defines the structure of the TransferData request message.
Note: 
A request message must always include the sub-function parameter level of operation AND a starting
address. Additional data bytes beyond the starting address are optional and would not be present in the case
of a request to execute a previously downloaded block of data.
The starting address parameter (startingAddress) can be two, three, or four bytes based on the ECU internal
addressing scheme. All TransferData requests to the same ECU shall use the same number of bytes in the
startingAddress parameter (independent of the actual address value). During SPS programming, the
programming tool determines the number of bytes to use in the startingAddress parameter from information in
the utility file.
Table 138: TransferData Request Message
Data Byte
Note 1
Parameter Name
Cvt Hex Value Mnemonic

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#1
TransferData Request Service Id
M
36
SIDRQ
#2
sub-function = [
download
downloadAndExecuteOrExecute]
M
00
80
LEV_
DL
DLEXOE
#3
#4
#5
#6
startingAddress[] = [
Byte1 - MSB
Byte2
Byte3
Byte4 ]
M
M
C1
C2
xx
xx
xx
xx
SA_B1
SA_B2
SA_B3
SA_B4
#5/6/7
:
#n
dataRecord[] = [
data byte #1
:
data byte #m (where m ≤ 4093 minus the
number of bytes in the
startingAddress) ]
C3
yy
:
zz
DREC_
DATA_1
:
DATA_m