1-15
1-15
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
P
Prro
ob
blle
em
m
C
Ca
au
us
se
e
C
Co
orrrre
ec
cttiio
on
n
14.
14. Engin
Engine
e dif
diffic
ficult to
ult to
start or will not
start or will not
start (no smoke
start (no smoke
from exhaust)
from exhaust)
1.
1. Electroni
Electronic f
c fault c
ault codes ar
odes are act
e active.
ive.
2.
2. Low
Low fuel
fuel tank
tank lev
level.
el.
3.
3. Exha
Exhaust s
ust syst
ystem is l
em is leaki
eaking hot air
ng hot air
into engine compartment.
into engine compartment.
4.
4. Fuel
Fuel shut
shutoff
off valv
valve clos
e closed.
ed.
5.
5. Batte
Battery vo
ry volta
ltage suppl
ge supply to the el
y to the elec-
ec-
tronic control system is
tronic control system is low
low,
, inter-
inter-
rupted, or open.
rupted, or open.
6.
6. Fuel
Fuel fil
filter
ter(s)
(s) are pl
are plugged.
ugged.
7.
7. Fuel c
Fuel connec
onnection i
tion is loos
s loose on suct
e on suction
ion
side of fuel pump.
side of fuel pump.
8.
8. Starting
Starting motor
motor rotation
rotation is i
is incorrect
ncorrect..
9.
9. Engin
Engine cran
e crankin
king speed to
g speed too slow
o slow..
10.
10. Loose wire on mas
Loose wire on master discon
ter disconnect
nect
switch.
switch.
1.
1. Re
Refer
fer to
to the
the
QSM11 Fault Code
QSM11 Fault Code
Information
Information
chart in this section.
chart in this section.
2.
2. Ad
Add
d fu
fuel
el..
3.
3. Chec
Check the e
k the exhaus
xhaust plu
t plumbi
mbing for
ng for
leaks or broken components.
leaks or broken components.
4.
4. Repa
Repair f
ir fuel s
uel shutdow
hutdown sol
n solenoid
enoid..
5.
5. Chec
Check the bat
k the battery c
tery connec
onnection
tions.
s.
Check the fuses and the un-
Check the fuses and the un-
switc
switched
hed battery supply
battery supply circui
circuit.
t.
6.
6. Repl
Replace f
ace fuel f
uel filt
ilter(
er(s).
s).
7.
7. T
Tight
ighten all fue
en all fuel fitt
l fittings an
ings and connec
d connec--
tions from fuel tank to fuel pump.
tions from fuel tank to fuel pump.
8.
8. Check
Check directi
direction of
on of cranks
crankshaft r
haft rota-
ota-
tion.
tion. Replace s
Replace starting m
tarting motor if nec
otor if nec--
essary.
essary.
9.
9. Chec
Check
k engin
engine c
e crank
ranking
ing rpm
rpm.
. Refe
Referr
to Problem 26. of this troubleshoot-
to Problem 26. of this troubleshoot-
ing chart.
ing chart.
10.
10. Iso
Isolate and tighten wir
late and tighten wire.
e.
11. Contact a Cummins Authorized
11. Contact a Cummins Authorized
Repair Facility.
Repair Facility.
15.
15. Engin
Engine
e dif
diffic
ficult to
ult to
start or will not
start or will not
start (exhaust
start (exhaust
smoke present)
smoke present)
continued
continued
1.
1. Electroni
Electronic f
c fault c
ault codes ar
odes are act
e active.
ive.
2.
2. Batte
Batterie
ries hav
s have dra
e drained o
ined or ar
r are
e
defective.
defective.
3.
3. Fuel s
Fuel shutof
hutoff valv
f valve(s) i
e(s) is clos
s closed
ed
(electronically controlled injection).
(electronically controlled injection).
4.
4. Fuse(s
Fuse(s)
) malfunct
malfunctioning.
ioning.
5.
5. Fuel
Fuel fil
filter
ter(s)
(s) are pl
are plugged.
ugged.
6.
6. Inta
Intake air o
ke air or exha
r exhaust s
ust syste
ystem is
m is
restricted.
restricted.
7.
7. Fuel
Fuel grade i
grade is not c
s not corr
orrect o
ect or fuel
r fuel
quality is poor.
quality is poor.
8.
8. Engin
Engine cran
e crankin
king speed to
g speed too slow
o slow..
9.
9. Hyd
Hydraul
raulic pum
ic pump is de
p is dead-he
ad-headed.
aded.
1.
1. Re
Refer
fer to
to the
the
QSM11 Fault Code
QSM11 Fault Code
Information
Information
chart in this section.
chart in this section.
2.
2. Rec
Recharg
harge or re
e or replac
place batte
e batterie
ries.
s.
3.
3. Chec
Check the f
k the fuel s
uel shutof
hutoff val
f valve and
ve and
circuit.
circuit.
4.
4. Repl
Replace t
ace the fus
he fuse(s
e(s) in t
) in the OEM
he OEM
interfac
interface
e harness.
harness.
5.
5. Repl
Replace f
ace fuel f
uel filt
ilter(
er(s).
s).
6.
6. Chec
Check int
k intake ai
ake air and exh
r and exhaust s
aust sys-
ys-
tems for r
tems for restric
estrictions.
tions. Remove
Remove
restrictions.
restrictions.
7.
7. Oper
Operate t
ate the engi
he engine fr
ne from a t
om a tank of
ank of
high-quality fuel (refer to the
high-quality fuel (refer to the
Fuel
Fuel
and Lubricant Specifications
and Lubricant Specifications
in
in
the
the
Appendices
Appendices
).
).
8.
8. Chec
Check
k engin
engine c
e crank
ranking
ing rpm
rpm.
. Refe
Referr
to Problem 26. of this troubleshoot-
to Problem 26. of this troubleshoot-
ing chart.
ing chart.
9.
9. De-energi
De-energize
ze hydrauli
hydraulic
c circui
circuit.
t.
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