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

Table 251: High Voltage Wake-Up on LS-CAN 
T = Frame Sent By Tester, N = Frame Sent By Node; shaded region indicates PCI 
Frame Type 
CAN Id 
#1 
#2 
#3 
#4 
#5 
#6 
#7 
#8 
T(UUDT) 
$100 
--- 
--- 
--- 
--- 
--- 
--- 
--- 
--- 

Wait 500 ms after wake-up, then transmit a service $10 request message (level $04), that forces Gateway 
ECUs to perform a wake-up on the sub-nets to which they are connected. 
Table 252: Wake-Up Gateway ECUs 
T = Frame Sent By Tester, N = Frame Sent By Node; shaded region indicates PCI 
Frame Type 
CAN Id 
#1 
#2 
#3 
#4 
#5 
#6 
#7 
#8 
T(USDT) 
$101 
$FD 
$02 
$10 
$04 
$AA 
$AA 
$AA 
$AA 
N4(USDT) 
$651 
$01 
$50 
$AA 
$AA 
$AA 
$AA 
$AA 
$AA 
Determine network configuration. 

Use service $1A with DataIdentifier $B0 to read diagnostic addresses from all of the ECUs (excluding 
SPS_TYPE_C). 
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GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 288 of 336 
Table 253: Read Diagnostic Addresses of All ECUs 
T = Frame Sent By Tester, N = Frame Sent By Node; shaded region indicates PCI 
Frame Type 
CAN Id 
#1 
#2 
#3 
#4 
#5 
#6 
#7 
#8 
T(USDT-SF) 
$101 
$FE 
$02 
$1A 
$B0 
$AA 
$AA 
$AA 
$AA 
N1(USDT-
SF) 
$641 
$03 
$5A 
$B0 
$28 
$AA 
$AA 
$AA 
$AA 
N2(USDT-
SF) 
$64D 
$03 
$5A 
$B0 
$60 
$AA 
$AA 
$AA 
$AA 
N3(USDT-
SF) 
$647 
$03 
$5A 
$B0 
$40 
$AA 
$AA 
$AA 
$AA 
N4(USDT-
SF) 
$651 
$03 
$5A 
$B0 
$42 
$AA 
$AA 
$AA 
$AA 
 
Sample $3B write such as the VIN. 

Send a service $3B request to write DID $90 (VIN). 
Table 254: Write VIN 
T = Frame Sent By Tester, N = Frame Sent By Node; shaded region indicates PCI 
Frame Type 
CAN Id 
#1 
#2 
#3 
#4 
#5 
#6 
#7 
#8 
T(USDT-FF) 
$247 
$10 
$13 
$3B 
$90 
"W" 
"0" 
"L" 
"0" 
N(USDT-FC) 
$647 
$30 
$00 
$00 
--- 
--- 
--- 
--- 
--- 
T(USDT-CF) 
$247 
$21 
"J" 
"B" 
"F" 
"3" 
"5" 
"W" 
"1" 
T(USDT-CF) 
$247 
$22 
"0" 
"4" 
"2" 
"7" 
"6" 
"5" 
$AA 
N(USDT-SF) 
$247 
$02 
$7B 
$90 
--- 
--- 
--- 
--- 
--- 
 
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GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 289 of 336 
10 Validation 
10.1 General. 
The node verification procedure 
results shall be documented in the separately 
available GMW3110 Test Result Template. Note 
that if using CANoe Option DiVa with GM 
Extensions for DiVa then the resulting report from 
CANoe may be provided in lieu of the GMW3110 
template.
10.2 Validation Cross Reference Index.
Not 
applicable.
 
10.3 Supporting Paragraphs.
Not applicable.
 
11 Provisions for Shipping 
Not applicable. 
12 Notes 
12.1 Glossary. 
12.1.1 ISO Terms: 
This document makes use of 
terms defined in the ISO 15765-2 Road Vehicles - 
Diagnostics on Controller Area Networks (CAN) 
document. 
ADDR: 
Address information.
 
BS:
Block Size. 
CAN:
Controller Area Network. 
CF:
Consecutive Frame. 
DL:
Data Length. 
FC: 
Flow Control. 
FF:
First Frame.
 
PCI:
Protocol Control Information.
 
SF: 
Single Frame.
 
STmin:
Separation Time (minimum).
 
USDT:
Unacknowledged 
Segmented 
Data 
Transfer - used to signify messages which may be 
segmented into multiple frames due to data length 
of the message.
 
UUDT: 
Unacknowledged 
Unsegmented 
Data 
Transfer - used to signify messages which are 
single frame ONLY. 
12.1.2 SAE Terms: 
This document makes use of 
terms 
defined 
in 
the 
SAE 
J1930 
Electrical/Electronic Systems Diagnostic Terms, 
Definitions, 
Abbreviations 
and 
Acronyms 
document. 
12.1.3 GM Terms 
CTS:
Component Technical Specification 
Diagnostic Mode:
An ECU is considered to be in 
Diagnostic Mode
any time a diagnostic service is 
active which requires that a TesterPresent ($3E) 
message be sent periodically in order to maintain 
the functionality of the service. See the description 
of each diagnostic service to see if it places an 
ECU in 
Diagnostic Mode
. 
ECU: 
Electronic Control Unit. An ECU is a node on 
a subnet. 
Gateway:
This is a special case MSSC that has 
additional requirements to transfer data between 
multiple subnets and may provide the wake-up 
mechanism for one or more of the subnets. 
HS-CAN:
Generic reference for all dual wire High 
speed buses. Includes, but not limited to the 
Primary HS bus, Chassis Expansion bus, and 
Powertrain Expansion bus. 
LS-CAN:
Generic reference for all single wire Low 
speed buses. Includes, but not limited to the 
Primary LS bus. 
MS-CAN:
Generic reference for all dual wire Mid 
speed buses. Includes, but not limited to the 
Primary MS bus 
MSSC:
Multiple Subnet Signal Consumer. An ECU 
that is connected to multiple subnets but does not 
provide wake-up features and does not transfer 
data between subnets. 
Node: 
An ECU on a network. 
Permanent Diagnostic CAN Identifiers:
These 
are the CAN Identifiers supported by an ECU 
which are used to support the transfer of diagnostic 
services between the tester and an ECU, or the 
tester and multiple ECUs. 
SPS:
Service Programming System