2-63
2-63
E-18
E-18
E-15
E-15
501136
501136
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.
3.26
26 FC
FC Le
Leve
ver F
r Fau
ault
lt (5
(54)
4)
Error code: 54
Error code: 54
Situa
Situation
tion
Displ
Display:
ay: "54".
"54". Relat
Related
ed leve
lever o
r opera
peration
tion inhib
inhibited
ited. N
. Norma
ormal t
l tract
raction
ion moto
motor a
r and p
nd powe
ower s
r steer
teering
ing oper
operatio
ations.
ns.
Possible
Possible
cause
cause
Faulty lift FC control lever, faulty tilt FC control lever, faulty attachment 1 and 2 FC control levers, faulty main
Faulty lift FC control lever, faulty tilt FC control lever, faulty attachment 1 and 2 FC control levers, faulty main
harness, faulty input unit.
harness, faulty input unit.
Trigger of
Trigger of
the error
the error
code
code
FC control lever voltage is out of range of 0.1 V to 4.9 V.
FC control lever voltage is out of range of 0.1 V to 4.9 V.
Checks
Checks
(6) D
(6) D
isconnect connector E
isconnect connector E
-12
-12
of input unit.
of input unit.
Disconnect c
Disconnect c
onnectors H-04
onnectors H-04
to H-07
to H-07
of FC control levers
of FC control levers
(FC-IN harnes
(FC-IN harnes
s)
s)
Lift
Lift
Til
Til
t
t
Attachment
Attachment
1
1
Attachment
Attachment
2
2
(1) Operate all FC control levers to find faulty FC control lever
(1) Operate all FC control levers to find faulty FC control lever
Attachment
Attachment
2: 4-valv
2: 4-valv
e spec
e spec
ification only
ification only
Attachment
Attachment
1 and 2: Inspec
1 and 2: Inspec
t by check
t by check
ing pump motor running so
ing pump motor running so
und if att
und if att
achment is not installed
achment is not installed
Found
Found
Not
Not
found,
found,
with
with
service
service
tool
tool
(2) Fin
(2) Fin
d faulty FC c
d faulty FC c
ontrol lev
ontrol lev
er with FC
er with FC
input
input
/
/
output
output
Monitor
Monitor
FC contro
FC contro
l lever voltage sho
l lever voltage sho
uld be
uld be
2.5 ±
2.5 ±
0.2 V if it
0.2 V if it
is not operated
is not operated
(5) Disconnect battery plug, then perform inverter
(5) Disconnect battery plug, then perform inverter
discharging work
discharging work
(
(
1
1
1
1
)
)
R
R
e
e
p
p
l
l
a
a
c
c
e
e
i
i
n
n
p
p
u
u
t
t
u
u
n
n
i
i
t
t
(
(
1
1
2
2
)
)
R
R
e
e
p
p
a
a
i
i
r
r
o
o
r
r
r
r
e
e
p
p
l
l
a
a
c
c
e
e
h
h
a
a
r
r
n
n
e
e
s
s
s
s
(
(
F
F
C
C
-
-
I
I
N
N
h
h
a
a
r
r
n
n
e
e
s
s
s
s
)
)
(7) Chec
(7) Chec
k continuity
k continuity
between
between
E-12-25 and H-04-2(S026),
E-12-25 and H-04-2(S026),
E-1
E-1
2-26
2-26
and H-04-4(S
and H-04-4(S
025),
025),
E-1
E-1
2-23 and H-04-
2-23 and H-04-
5(A084)
5(A084)
and
and
E-12-24 and H-04-1(G021)
E-12-24 and H-04-1(G021)
Continuity No continuity
Continuity No continuity
(8) Check continuity between
(8) Check continuity between
E-12-27 and H-05-2(S024),
E-12-27 and H-05-2(S024),
E-12-28 and H-05-4(S023),
E-12-28 and H-05-4(S023),
E-12-23 and H-05-5(A072)
E-12-23 and H-05-5(A072)
and
and
E-12-24 and H-05-1(G020)
E-12-24 and H-05-1(G020)
Continuity
Continuity
No
No
continuity
continuity
(9) Check continuity between
(9) Check continuity between
E-12-29 and H-06-2(S022),
E-12-29 and H-06-2(S022),
E-12-30 and H-06-4(S021),
E-12-30 and H-06-4(S021),
E-12-23 and H-06-5(A073)
E-12-23 and H-06-5(A073)
and
and
E-12-24 and H-06-1(G019)
E-12-24 and H-06-1(G019)
Continuity
Continuity
No
No
continuity
continuity
(10) Check continuity between
(10) Check continuity between
E-12-31 and H-07-2(S020),
E-12-31 and H-07-2(S020),
E-12-32 and H-07-4(S019),
E-12-32 and H-07-4(S019),
E-12-23 and H-07-5(A074)
E-12-23 and H-07-5(A074)
and
and
E-12-24 and H-07-1(G018)
E-12-24 and H-07-1(G018)
Continuity
Continuity
No
No
continuity
continuity
(4) Disconnect battery plug
(4) Disconnect battery plug
Replace FC control lever
Replace FC control lever
Note
Note
: -100 % equal
: -100 % equal
0.25 V
0.25 V
0 % equal 2.5 V
0 % equal 2.5 V
100 % equal 4.75 V
100 % equal 4.75 V
(13) Disconnect battery plug then perform inverter
(13) Disconnect battery plug then perform inverter
If fault remains
If fault remains
(3) Turn off power
(3) Turn off power
Replace abnormal FC control lever with normal control
Replace abnormal FC control lever with normal control
lever
lever
Turn on power
Turn on power
Check faulty FC control lever
Check faulty FC control lever
Not
Not
changed
changed
Changed
Changed
Содержание FB13PNT
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