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 325 of 336 
Figure E10: Powertrain Type B DTC (1 of 3) 
Status Byte Operation 
Figure E11: Powertrain Type B DTC (2 of 3) 
Figure E12: Powertrain Type B DTC (3 of 3) 
 
WIRS
CDTCSPU
TNPSCPU
HDTC
TFSDTCC
TNPSDTCC
CDTC
DTCSBC
Te
s
t 
R
u
n
s
a
n
d
Pa
s
s
e
s
Fir
s
t 
Time
Po
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U
p
Te
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t 
R
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s
a
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d
Pa
s
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s
Te
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R
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a
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EC
U
Po
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D
o
w
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EC
U
Po
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e
r 
U
p
EC
U
Po
w
e
r 
D
o
w
n
$4B
$4B
$D9
$B9
$99
$25
$01
$4B
$2B
$FB
$D9
$25
$01
$01
$21
$01
$4B
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
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1
0
0
0
0
1
0
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
1
1
0
0
0
0
0
0
1
1
1
0
0
0
1
1
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0
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0
0
0
1
0
1
0
1
1
0
0
0
0
1
0
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0
1
0
0
1
0
0
0
1
0
0
1
1
0
1
1
1
0
0
0
0
0
0
0
0
1
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Te
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R
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Pa
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R
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0
1
1
1
1
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0
0
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0
0
EC
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D
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EC
U
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D
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EC
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R
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Fa
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Te
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R
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s
a
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d
Fa
ils
Te
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t 
R
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s
a
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d
Fa
ils
Power Cycle #1
Power Cycle #2
Power Cycle #3
Power Cycle #4
C
le
a
r 
D
ia
g
n
o
s
tic
In
fo
rma
tio
n
WIRS
CDTCSPU
TNPSCPU
HDTC
TFSDTCC
TNPSDTCC
CDTC
DTCSBC
0
1
$99
0
0
1
1
0
1
1
1
1
$99
$B9
$99
0
0
0
0
0
0
$99
$99
$B9
$99
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
Te
s
t 
R
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a
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d
P
a
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$FF
$BF
$6F
$6F
$2F
$FF
$2B
$25
1
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
0
0
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
0
0
0
0
0
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0
0
1
0
0
0
1
1
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1
1
1
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0
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0
1
1
0
1
1
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0
0
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1
1
1
1
1
1
1
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1
1
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D
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C
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D
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In
fo
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E
C
U
P
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D
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E
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U
P
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D
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D
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U
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e
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Te
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R
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s
a
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d
P
a
s
s
e
s
Power Cycle #7
E
C
U
P
o
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r 
D
o
w
n
E
C
U
P
o
w
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r 
U
p
Te
s
t 
R
u
n
s
a
n
d
Fa
ils
Power Cycle #8
Power Cycle #9
Power Cycle #5
Power Cycle #6
DTC Not Set
WIRS
CDTCSPU
History DTC
TNPSCPU
HDTC
History DTC, Warning Lamp On
TFSDTCC
TNPSDTCC
Current DTC
CDTC
DTCSBC
Current DTC, Warning Lamp On
Te
s
t 
R
u
n
s
a
n
d
P
a
s
s
e
s
0
1
0
0
0
1
$19
0
1
1
0
$39
0
0
E
C
U
P
o
w
e
r 
U
p
1
1
1
0
Power Cycle #10
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GM WORLDWIDE ENGINEERING STANDARDS 
GMW3110 
© Copyright 2010 General Motors All Rights Reserved 
February 2010 
Page 326 of 336 
Status Byte Operation 
 
 
Figure E13: Powertrain Type C DTC (1 of 2) 
Figure E14: Powertrain Type C DTC (2 of 2) 
 
Status Byte Operation 
Figure E15: Automatic Clearing of DTCs 
E1.2 DTC Failure Type Definition General Description. 
The DTC Failure Type consists of 16 different failure 
categories, where each category is associated with 16 Sub Type Failures (also known as symptoms). The Sub 
Type Failures are logically grouped in a DTC Failure Type Category. This was done to simplify the selection of 
the appropriate Sub Type Failure (Symptom) for a DTC. 
WIRS
CDTCSPU
TNPSCPU
HDTC
TFSDTCC
TNPSDTCC
CDTC
DTCSBC
$DB
$DB
$39
$19
$25
$01
$3B
$FB
$59
$59
$21
$01
$DB
$DB
$25
$01
$01
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
1
1
1
0
0
1
1
1
1
0
0
1
1
0
0
0
0
1
1
1
1
1
0
1
1
1
1
0
0
0
0
0
1
0
0
1
0
1
0
1
1
0
0
1
0
0
0
1
0
0
0
1
1
1
0
0
0
1
0
1
1
0
0
0
0
0
1
1
1
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
EC
U
Po
w
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U
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EC
U
Po
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U
p
EC
U
Po
w
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U
p
T
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t 
R
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s
a
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d
F
a
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EC
U
Po
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D
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EC
U
Po
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D
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EC
U
Po
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D
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C
le
a
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D
ia
g
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s
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In
fo
rm
a
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EC
U
Po
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D
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T
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R
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T
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R
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R
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R
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F
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t 
T
im
e
Po
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U
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T
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t 
R
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s
a
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d
F
a
ils
T
e
s
t 
R
u
n
s
a
n
d
F
a
ils
Power Cycle #3
Power Cycle #4
Power Cycle #1
Power Cycle #2
WIRS
CDTCSPU
DTC Not Set
TNPSCPU
HDTC
History DTC
TFSDTCC
TNPSDTCC
CDTC
DTCSBC
Current DTC, Warning Lamp On
Power Cycle #5
Power Cycle #6
Power Cycle #7
T
e
s
t 
R
u
n
s
a
n
d
F
a
ils
C
le
a
r 
D
ia
g
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tic
In
fo
rm
a
tio
n
EC
U
Po
w
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U
p
EC
U
Po
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U
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T
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R
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s
a
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F
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EC
U
Po
w
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U
p
EC
U
Po
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D
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C
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a
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D
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In
fo
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a
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n
EC
U
Po
w
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r 
D
o
w
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0
0
1
1
0
1
0
0
0
0
0
1
1
0
1
0
0
0
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
0
0
0
1
0
1
1
1
1
0
0
0
0
1
1
1
1
1
1
1
1
1
0
1
1
1
1
0
0
0
1
1
1
1
1
1
1
1
1
$FF
$FF
$3F
$3B
$25
Current DTC
$25
$25
$25
$FF
WIRS
CDTCSPU
TNPSCPU
HDTC
DTC Not Set
TFSDTCC
TNPSDTCC
History DTC
CDTC
DTCSBC
Current DTC, Warning Lamp On
3
8
Fa
u
lt
Fr
e
e
Ig
n
it
io
n
C
y
c
le
s
Power Cycle N + 1
Power Cycle N + 2
C
le
a
r 
D
ia
g
n
o
s
tic
In
fo
rma
tio
n
Te
s
t 
R
u
n
s
a
n
d
Fa
ils
Te
s
t 
R
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s
a
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d
Pa
s
s
e
s
Te
s
t 
R
u
n
s
a
n
d
Pa
s
s
e
s
Te
s
t 
R
u
n
s
a
n
d
Pa
s
s
e
s
EC
U
Po
w
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r 
D
o
w
n
EC
U
Po
w
e
r 
D
o
w
n
EC
U
Po
w
e
r 
U
p
$19
$25
$01
$39
$19
$19
$39
1
1
Power Cycle N + 40
1
1
1
1
Te
s
t 
R
u
n
s
a
n
d
Pa
s
s
e
s
EC
U
Po
w
e
r 
U
p
0
0
0
$25
$FF
$59
$59
1
1
1
1
1
0
0
0
0
0
1
0
0
0
0
1
0
1
0
0
1
1
0
0
0
0
0
1
1
1
1
0
1
1
1
1
1
0
0
0
1
0
0
1
1
1
1
1
1
0
0
1
1
0
0
1
0
0
1
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
EC
U
Po
w
e
r 
U
p
Power Cycle N
0
1
0
0
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