1-9
1-9
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
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
3
32
25
5 -
- Y
Ye
ellllo
ow
w
No
No cu
currrre
en
nt
t d
de
ette
ect
cte d
e d a t
a t No
No.
. 6
6 iin
njje c
e ctto
or
r wh
whe
en
n tth
he
e
voltage is turned on.
voltage is turned on.
Current to the injector is shut off.
Current to the injector is shut off.
3
33
31
1 -
- Y
Ye
ellllo
ow
w
No
No cu
currrre n
e nt
t d
de
ette
ect
cte
ed
d a
at
t No
No.
. 2
2 iin
njje
ect
cto
or
r w
wh
he n
e n tth
he
e
voltage is turned on.
voltage is turned on.
Current to the injector is shut off.
Current to the injector is shut off.
3
33
32
2 -
- Y
Ye
ellllo
ow
w
No
No cu
currrre n
e nt
t d
de
ette
ect
cte
ed
d a
at
t No
No.
. 4
4 iin
njje
ect
cto
or
r w
wh
he n
e n tth
he
e
voltage is turned on.
voltage is turned on.
Current to the injector is shut off.
Current to the injector is shut off.
3
34
41
1 -
- Y
Ye
ellllo
ow
w
S
Se
ev
ve
erre
e llo
os
ss
s o
of
f d
da
atta
a ffrro
om
m tth
he
e E
EC
CM
M.
.
P
Po
os
ss
siib
blle
e n
no
o n
no
ottiic
ce
ea
ab
blle
e p
pe
errffo
orrm
ma
an
nc
ce
e e
effffe
ec
ctts
s
OR engine dying OR hard starti
OR engine dying OR hard starting.
ng. Fault info
Fault infor-
r-
mation, trip information, and maintenance
mation, trip information, and maintenance
monitor data may be inaccurate.
monitor data may be inaccurate.
3
34
43
3 -
- Y
Ye
ellllo
ow
w
IIn
ntte
errn
na
al
l E
EC
CM
M e
errrro
orr.
.
P
Po
os
ss
siib
blle
e n
no
on
ne
e o
on
n p
pe
errffo
orrm
ma
an
nc
ce
e o
or
r s
se
ev
ve
erre
e
derate.
derate.
34
349
9 -
- Y
Yel
elllow
ow
A
A ffrreq
eque
uenc
ncy
y gr
grea
eatter
er th
than
an ca
calliibr
brat
ated
ed th
thrres
esho
holld
d
was detected at the tailshaft governor signal of
was detected at the tailshaft governor signal of
the 31-pin OEM connector.
the 31-pin OEM connector.
Calibration dependent power and speed
Calibration dependent power and speed
derate.
derate.
3
35
52
2 -
- Y
Ye
ellllo
ow
w
L
Lo
ow
w vo
volltta
ag
ge
e d
de
ette
ec
ctte
ed
d o
on
n tth
he
e E
ECM
CM v
vo
olltta
ag
ge
e
supply line to some sensors (VSEN1 supply).
supply line to some sensors (VSEN1 supply).
The engine is derated to no air setting.
The engine is derated to no air setting.
3
38
86
6 -
- Y
Ye
ellllo
ow
w
Hi
Hig
gh
h v
vo
olltta
ag
ge
e d
de
ette
ect
cte
ed
d o
on
n tth
he
e E
ECM
CM v
vo
olltta
ag
ge
e
supply line to some sensors (VSEN1 supply).
supply line to some sensors (VSEN1 supply).
The engine is derated to no air setting.
The engine is derated to no air setting.
3
38
87
7 -
- Y
Ye
ellllo
ow
w
Hi
Hig
gh
h v
vo
olltta
ag
ge
e d
de
ette
ect
cte
ed
d o
on
n tth
he
e E
ECM
CM 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
41
15
5 -
- R
Re
ed
d
O
Oiil
l p
prre
es
ss
su
urre
e s
siig
gn
na
al
l iin
nd
diic
ca
atte
es
s o
oiil
l p
prre
es
ss
su
urre
e iis
s
below the very low oil pressure engine protec-
below the very low oil pressure engine protec-
tion limit.
tion limit.
Progressive power derate with increasing time
Progressive power derate with increasing time
from aler
from alert.
t. Engine wil
Engine will shut down 30 seconds
l shut down 30 seconds
after red light starts flashing.
after red light starts flashing.
4
41
18
8 -
- B
Bllu
ue
e
W
Wa
atte
er
r h
ha
as
s b
be
ee n
e n d
de t
e te
ect
cte
ed
d iin
n tth
he
e ffu
ue
el
l ffiilltte
err.
.
Po
Pos
ssi
sib
blle
e wh
whiitte
e s
sm
mo
oke
ke,
, llo
oss
ss o
of
f p
po
owe
werr,
, o
or
r h
ha r
a rd
d
starting.
starting.
4
41
19
9 -
- Y
Ye
ellllo
ow
w
A
An
n e
errrro r
o r iin
n tth
he
e iin
ntta
ake
ke m
ma
an i
n iffo l
o ld
d p
prre
ess
ssu
urre
e se
sen
n--
sor signal was detected by the ECM.
sor signal was detected by the ECM.
The engine is derated to no air setting.
The engine is derated to no air setting.
422 - Yellow
422 - Yellow
Voltage
Voltage detected
detected simultaneously
simultaneously on
on both
both the
the
coolant level high and low signal circuits OR
coolant level high and low signal circuits OR
no voltage detected on both circuits.
no voltage detected on both circuits.
Engine will shut down 30 seconds after red
Engine will shut down 30 seconds after red
light star
light starts flashing
ts flashing.
. Disconn
Disconnected or loose
ected or loose
plug at coolant sensor, defective coolant sen-
plug at coolant sensor, defective coolant sen-
sor, or loose or broken wire between sensor
sor, or loose or broken wire between sensor
and ECM.
and ECM.
4
42
26
6 -
- N
No
on
ne
e
C
Co
om
mm
mu
un
niic
ca
attiio
on
n b
be
ettw
we
ee
en
n tth
he
e E
EC
CM
M a
an
nd
d tth
he
e
J1939 data link has been lost.
J1939 data link has been lost.
None on perfor
None on performance.
mance. J1939 devi
J1939 devices may
ces may
not operate.
not operate.
42
428
8 -
- Y
Yel
elllow
ow
Hi
High
gh vo
vollta
tage
ge de
dettec
ecte
ted
d at
at wa
wate
terr--iin-
n-ffue
uel
l se
sens
nsor
or.
.
No
None
ne on
on pe
perf
rfor
orma
manc
nce.
e.
42
429
9 -
- Y
Yel
elllow
ow
Lo
Low
w vo
vollta
tage
ge de
dete
tect
cted
ed at
at wa
watter
er--iin-
n-fu
fuel
el se
sens
nsor
or.
.
No
None
ne on
on pe
perf
rfor
orma
manc
nce.
e.
431 - Yellow
431 - Yellow
Voltage
Voltage detected
detected simultaneously
simultaneously on
on both
both the
the
idle validation off-idle and on-idle circuits.
idle validation off-idle and on-idle circuits.
None on performance.
None on performance.
432 - Red
432 - Red
Voltage
Voltage detected
detected at
at idle
idle validation
validation on-idle
on-idle cir-
cir-
cuit when voltage at throttle position circuit
cuit when voltage at throttle position circuit
indicates the pedal is not at idle OR voltage
indicates the pedal is not at idle OR voltage
detected at idle validation off-idle circuit when
detected at idle validation off-idle circuit when
voltage at throttle position circuit indicates the
voltage at throttle position circuit indicates the
pedal is at idle.
pedal is at idle.
The engine will only idle.
The engine will only idle.
43
433
3 -
- Y
Yel
elllow
ow
V
Vol
olttag
age
e si
sign
gnal
al at
at iint
ntak
ake
e ma
mani
niffol
old
d pr
pres
essu
sure
re ci
cirr--
cuit indicates high intake manifold pressure
cuit indicates high intake manifold pressure
but other engine characteristics indicate intake
but other engine characteristics indicate intake
manifold pressure must be low.
manifold pressure must be low.
Derate to no air setting.
Derate to no air setting.
https://www.forkliftpdfmanuals.com/
Содержание THDC-954
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