THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
1-10
1-10
F
Fa
au
ullt
t C
Co
od
de
e -
- L
Liig
gh
ht
t
F
Fa
aiillu
urre
e D
De
es
sc
crriip
pttiio
on
n
F
Fa
aiillu
urre
e R
Re
es
su
ulltts
s
4
43
34
4 -
- Y
Ye
ellllo w
o w
S
Su
up
pp l
p ly
y vo
volltta g
a ge
e tto
o tth
he
e E
ECM
CM ffe
elll
l b
be
ello
ow
w 6
6..2
2 VD
VDC
C
for a fraction of a second OR the ECM was not
for a fraction of a second OR the ECM was not
allowed to power down correctly (retain battery
allowed to power down correctly (retain battery
voltage for 30 seconds after key off).
voltage for 30 seconds after key off).
Possible no noticeable performance effects
Possible no noticeable performance effects
OR possibili
OR possibility of
ty of engine dying OR hard
engine dying OR hard star-
star-
ing.
ing. Fault information,
Fault information, trip informati
trip information, and
on, and
maintenance monitor data may be inaccurate.
maintenance monitor data may be inaccurate.
4
43
35
5 -
- Y
Ye
ellllo w
o w
A
An
n e
errrro
or
r iin
n tth e
h e o
oiil
l p r
p re
es
ssu
surre
e s
se n
e ns
so
or
r si
sig
gn
na
al
l wa
was
s
detect
detected by
ed by the ECM.
the ECM.
None on perform
None on performance.
ance. No engine prote
No engine protection
ction
for oil pressure.
for oil pressure.
441 - Yellow
441 - Yellow
Battery
Battery voltage
voltage is
is below
below the
the normal
normal operating
operating
level.
level.
Possible no noticeable performance effects
Possible no noticeable performance effects
OR possibility of rough idle.
OR possibility of rough idle.
442 - Yellow
442 - Yellow
Battery
Battery voltage
voltage is
is above
above the
the normal
normal operating
operating
level.
level.
None on performance.
None on performance.
4
44
43
3 -
- Y
Ye
ellllo
ow
w
L
Lo
ow
w v
vo
olltta
ag
ge
e d
de
ette
ec
ctte
ed
d o
on
n tth
he
e E
EC
CM
M v
vo
olltta
ag
ge
e
supply line to the throttle(s) (VTP supply).
supply line to the throttle(s) (VTP supply).
The engine will only idle.
The engine will only idle.
4
48
89
9 -
- Y
Ye
ellllo w
o w
A
Au
uxi
xilliia
arry
y sp
spe
ee
ed
d ffrre
eq
qu
ue
en
ncy
cy o
on
n iin
np u
p ut
t p
piin
n iin
nd i
d i--
cated that the frequency is below a calibration
cated that the frequency is below a calibration
dependent threshold.
dependent threshold.
The engine will only idle.
The engine will only idle.
5
52
27
7 -
- Y
Ye
ellllo w
o w
L
Le
ess
ss tth
ha
an
n 1
17
7..0
0 V
VDC
DC d
de t
e te
ect
cte
ed
d a t
a t tth
he
e d
du
ua
al
l o
ou
utt--
put A signal pin of the 31-pin OEM connector.
put A signal pin of the 31-pin OEM connector.
No action taken by the ECM.
No action taken by the ECM.
5
52
28
8 -
- Y
Ye
ellllo w
o w
L
Le
ess
ss tth
ha
an
n 1
17
7..0
0 V
VDC
DC d
de t
e te
ect
cte
ed
d a t
a t tth
he
e d
du
ua
al
l o
ou
utt--
put B signal pin of the 31-pin OEM connector.
put B signal pin of the 31-pin OEM connector.
No action taken by the ECM.
No action taken by the ECM.
5
52
29
9 -
- Y
Ye
ellllo w
o w
L
Le
ess
ss tth
ha
an
n 1
17
7..0
0 V
VDC
DC d
de t
e te
ect
cte
ed
d a t
a t tth
he
e d
du
ua
al
l o
ou
utt--
put B signal pin at the ECM.
put B signal pin at the ECM.
No action taken by the ECM.
No action taken by the ECM.
551 - Yellow
551 - Yellow
No
No voltage
voltage detected
detected simultaneously
simultaneously on
on both
both
the idle validation off-idle and on-idle circuits.
the idle validation off-idle and on-idle circuits.
The engine will only idle.
The engine will only idle.
58
581
1 -
- Y
Yel
elllow
ow
Hi
High
gh vo
vollta
tage
ge de
dete
tect
cted
ed at
at th
the
e fu
fuel
el iinl
nlet
et rres
esttri
ric-
c-
tion sensor signal pin.
tion sensor signal pin.
Fuel inlet restriction monitor deactivated.
Fuel inlet restriction monitor deactivated.
5
58
82
2 -
- Y
Ye
ellllo w
o w
L
Lo
ow
w v
vo
olltta
ag
ge
e d
de t
e te
ect
cte
ed
d a
at
t tth
he
e ffu e
u el
l iin
nlle
et
t rre
es
sttrriic-
c-
tion sensor signal pin.
tion sensor signal pin.
Fuel inlet restriction monitor deactivated.
Fuel inlet restriction monitor deactivated.
5
58
83
3 -
- Y
Ye
ellllo w
o w
Re
Rest
strriic
cttiio
on
n h
ha
as
s b
be
ee
en
n d
de
ette
ec
ctte
ed
d a
at
t tth
he
e ffu
ue
el
l p
pu
um
mp
p
inlet.
inlet.
Fuel inlet restriction monitor warning is set.
Fuel inlet restriction monitor warning is set.
5
59
96
6 -
- Y
Ye
ellllo w
o w
Hi
Hig
gh
h b
ba
atttte
erry
y vo
volltta
ag
ge
e d
de
ette
ec
ctte
ed
d b
by
y tth
he
e b
ba
atttte
erry
y
voltage monitor feature.
voltage monitor feature.
Y
Yellow light
ellow light will be
will be illuminated until high
illuminated until high battery
battery
voltage condition is corrected.
voltage condition is corrected.
5
59
97
7 -
- Y
Ye
ellllo
ow
w
IIC
CO
ON
N
t
t
has restarted the engine 3 times within
has restarted the engine 3 times within
3 hours due to low battery voltage (automotive
3 hours due to low battery voltage (automotive
only) OR low battery voltage detected by the
only) OR low battery voltage detected by the
battery voltage monitor feature.
battery voltage monitor feature.
Y
Yellow light
ellow light will be
will be illuminated until low
illuminated until low battery
battery
volta
voltage conditi
ge condition is corrected
on is corrected.
. The ECM may
The ECM may
increase idle speed and deactivate idle decre-
increase idle speed and deactivate idle decre-
ment swit
ment switch if idle speed
ch if idle speedup is enabled.
up is enabled. The
The
engine will run continuously if ICON
engine will run continuously if ICON
t
t
is active
is active
(automotive only).
(automotive only).
598 - Red
598 - Red
Very
Very low
low battery
battery voltage
voltage detected
detected by
by the
the bat-
bat-
tery voltage monitor feature.
tery voltage monitor feature.
Red light will be illuminated until very low bat-
Red light will be illuminated until very low bat-
tery voltage condition is corrected.
tery voltage condition is corrected.
611 - None
611 - None
Engine
Engine shutdown
shutdown by
by operator
operator before
before proper
proper
engine cool down resulting in filtered load fac-
engine cool down resulting in filtered load fac-
tor above maximum shutdown threshold.
tor above maximum shutdown threshold.
No action taken by the ECM.
No action taken by the ECM.
9
95
51
1 -
- N
No
on
ne
e
A
A p
po
ow
we
er
r iim
mb
ba
alla
an
nc
ce
e b
be
ettw
we
ee
en
n c
cy
ylliin
nd
de
errs
s w
wa
as
s
detect
detected by
ed by the ECM.
the ECM.
The engine may have rough idle or misfire.
The engine may have rough idle or misfire.
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