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

N/A
in this column indicates that the service is not applicable (or not required) in order to program 
the ECU. 
Note:
Reference the ECU Programming section of this specification for more information on boot software. 
Note:
Reference the ECU Programming section of this specification for more information about utility files. 
Note:
All diagnostic services listed below shall be supported by the node regardless of addressing method 
used in the request message, as long as the address is valid for that particular node. Refer to 4.5 for more 
information on message addressing. For tester limitations on request methods, refer to the tester implication 
section of each specific diagnostic service. 
Table 6: Required Diagnostic Services Overview 
 
 
Supported in: 
Diagnostic Service Name 
REQ 
SID 
Diagnostics 
Programming 
Boot 
CANId 
(Test Mode) 
(hex) 
 
(SPS) 
Memory 
Type 
ClearDiagnosticInformation 
04 
M
1
N/A 
USDT 
InitiateDiagnosticOperation 
10 
C
1
C
1
USDT 
ReadFailureRecordData 
12 
C 
N/A 
USDT 
ReadDataByIdentifier 
1A 
M 
M
2
USDT 
ReturnToNormalOperation 
20 
M 
M 
USDT 
ReadDataByParameterIdentifier 
22 
U 
N/A 
USDT 
ReadMemoryByAddress 
23 
U 
N/A 
USDT 
SecurityAccess 
27 
C
2
M
3
USDT 
DisableNormalCommunication 
28 
M 
M 
USDT 
DynamicallyDefineMessage 
2C 
C 
N/A 
USDT 
DefinePIDByAddress 
2D 
U 
N/A 
USDT 
RequestDownload 
34 
N/A 
M 
USDT 
TransferData 
36 
N/A 
M 
USDT 
WriteDataByIdentifier 
3B 
C 
M
4
USDT 
TesterPresent 
3E 
M 
M 
USDT 
ReportProgrammingState 
A2 
N/A 
M 
USDT 
ProgrammingMode 
A5 
M 
M 
USDT 
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