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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.28 8 Out
3.2
Output
Error code: 56
Error code: 56
Sit
Situat
uation
ion
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1)
(1)
Disconnect battery plug,
Disconnect battery plug,
(2)
(2) Dis
Disconn
connect connec
Disconnec
Disc
(3) Check short circuit between all pin patterns[E-11-21(1) to E-11-32(12)]
(3) Check short circuit between all pin patterns[E-11-21(1) to E-11-32(12)]
(4) Measure solenoid coil resistance
(4) Measure solenoid coil resistance
[13 Ω at -30 °C(-22 °F) to 24 Ω at 80 °C(176 °F)]
[13 Ω at -30 °C(-22 °F) to 24 Ω at 80 °C(176 °F)]
(6) Replace output unit
(6) Replace output unit
put Uni
Unit t Sol
Soleno
enoid id Cur
Curren
Displa
Dis
play: "5
y: "56".
6". All t
All truc
ruck ope
k operat
Faulty lift solenoid, faulty tilt solenoid, faulty attachment 1 and 2 solenoids, faulty main harness, faulty output
Faulty lift solenoid, faulty tilt solenoid, faulty attachment 1 and 2 solenoids, faulty main harness, faulty output
unit.
unit.
When signal is not outputted, current is more than 0.18 A.
When signal is not outputted, current is more than 0.18 A.
then perform inverter
then perform inverter
ect
connector
tor
E-1
E-11
1
of output
of output
onnect
t
conne
connectors
ctors
E-28
E-28
to
to
E-35
E-3
5
N
N
o
o
t
t
s
s
h
h
o
o
r
r
t
t
e
e
d
d
Normal
Normal
Abnormal
Abnormal
rent L
t Leak
eak (56
(56) )
ration
ions inh
s inhibi
ibited
ted. Li
. Line c
ne cont
ontact
actor O
discharging w
discharging
work
ork
unit
unit
of s
of
solenoids
olenoids
(5) Repair or replace harness
(5) Repair or replace harness
(7) Replace related solenoid
(7) Replace related solenoid
or OPEN
PEN and p
and pum
ump con
p contac
tactor
tor OPE
OPEN. N.
S
S
h
h
o
o
r
r
t
t
e
e
d
d
501150
501150
2-67
2-67
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