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 9 of 336 
GMLAN 
System 
requirement 
GMW 3098 
GMLAN 
strategy 
specification 
GMW 3104 
GMLAN 
handler 
specification 
GMW 3107 
GMLAN 
Training 
Document 
SWC Physical 
Layer 
Specification 
GMW 3089 
GM High 
Speed CAN 
Physical Layer 
Specification 
GMW 3122 
Hardware 
documents 
GMLAN 
Strategy 
Validation 
Specification 
GMW 3128 
Enhanced 
Diagnostic 
Test Mode 
Specification 
GMW 3110 
Diagnostic 
documents 
Tools 
documents 
LLCT 
GMW3125 
volume#1 
HLCT 
GMW3125 
volume#2 
FltR 
GMW3125 
volume#3t 
SDATT 
GMW3125 
volume#4 
Software 
documents 
GMLAN
Architecture 
& Bus Wiring 
Specification 
GMW 3173 
Figure 1: GMLAN General Specifications 
2.3.1.2 
Device 
Specification. 
The 
Device 
Specification is ECU specific. It contains:
 

References to the optional parts of General 
Specifications which are applicable to the 
ECU. 

ECU specific information (e.g., Diagnostic 
Services required for implementation). 
2.3.2 Other Publications. 
OSEK/COM/VDX 
Communication Specification 
Version 2.2.2 
Bosch 
CAN Specification 2.0a/2.0b 
3 Diagnostic Service Documentation 
Structure And Convention 
Each diagnostic service is documented and 
defined in this specification within a specific 
subsection of Section 8 - Diagnostic Services (Test 
Modes) 
Definiton. 
The 
diagnostic 
service 
definitions are structured as follows: 
1. A brief summary of the diagnostic service 
intent. 
2. A Service Description section which provides 
text describing the general functionality of the 
diagnostic service and how it should be used 
(and implemented). 
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