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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.18 8 Tra
3.1
Tracti
Error code: 45
Error code: 45
Situation
Situation
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1) Disconnect battery plug, then perform inverter discharging work
(1) Disconnect battery plug, then perform inverter discharging work
(2) Check right traction inverter and motor for cable
(2) Check right traction inverter and motor for cable
looseness and improper contact
looseness and improper contact
(3) Disconnect right traction motor cables from inverter
(3) Disconnect right traction motor cables from inverter
Measure resistance of mot
Measure resistance of
phases)
phases)
(5)
(5)
Check
Check
looseness
looseness
(7)
(7)
Disconnect c
Disconnect
traction inverter and remove DSP
traction inverter and remove DSP
cover. Check DSP flat cable for
cover. Check DSP flat cable for
looseness or wire breakage
looseness or wire breakage
Gate power
Gate power
supply
supply
(11)
(11)
Disconnect
Disconnect c
Check continuity between E-01-5 and E-07-16(9)
Check continuity between E-01-5 and E-07-16(9)
Check continuity between E-01-6 and E-07-20(12)
Check continuity between E-01-6 and E-07-20(12)
(13) Dis
(13)
Disconn
Check continuity between E-02-5 and E-07-3(3)
Check continuity between E-02-5 and E-07-3(3)
Check continuity between E-02-6 and E-07-4(4)
Check continuity between E-02-6 and E-07-4(4)
(14) C
(14)
Connec
onnect connector E
power again
power again
(16) Measure
(16) Measure
ction
on Mot
Motor or R.H
R.H., ., Op
Open
en (45
Display: "45". Traction motor operation inhibited. Pump motor and power steering operations inhibited if this
Display: "45". Traction motor operation inhibited. Pump motor and power steering operations inhibited if this
fault occurs before pump contactor CLOSE, and both operable if it
fault occurs before pump contactor CLOSE, and both operable if it occurs after pump contactor CLOSE. Line
contactor OPEN and pump
contactor OPEN and pump contactor CLOSE or OPEN.
Faulty contact or wire breakage of right side traction motor cable, faulty right side traction motor, faulty
Faulty contact or wire breakage of right side traction motor cable, faulty
contact or wire breakage of right side traction inverter connector, faulty contact of DSP flat
contact or wire breakage of right side traction inverter connector, faulty contact of DSP flat cable in right side
traction inverter, wire breakage of main harness, faulty power supply card of logic unit,
traction inverter, wire breakage of main harness, faulty power supply
side traction inverter, faulty right side traction inverter, when restarting after
side traction inverter, faulty
Motor voltage is abnormal when power is turned on. Current does not flow when torque instruction is
Motor voltage is abnormal when power is turned on. Current does not
requested.
requested.
Normal
Normal
Abnormal
Abnormal
motor cables
or
cables(U, V
(U, V
Less
Less
than
than
1
1
Ω
Ω
1
1
Ω
Ω
connector E-07
connector E-07
of right traction inverter for
of right traction inverter for
Normal
Normal
Abnormal
Abnormal
connector E-07
onnector E-07
of right
of right
Normal
Normal
Abnormal
Abnormal
connector E-01
onnector E-01
of logic unit
of logic unit
Continuity
Continuity
No
No
CAN
CAN
connect connec
ect
connector E-02
tor E-02
of logic unit
of logic unit
Continuity
Continuity
No
No
t connector
E-01
-01
to logic unit
to logic unit
voltage between
voltage between
E-07-16(9) and
E-07-16(9) and
(45) )
contactor CLOSE or OPEN.
right side traction inverter, when restarting after motor shorted.
(4) Secure cable if loose
(4) Secure cable if loose
and W
and W
or
or
more
more
(6) Measure resistance between terminals of both cable
(6) Measure resistance between terminals of both cable
ends (between U and U, V and V, and W and W)
ends (between U and U, V and V, and W and W)
(8)
(8) Connec
Connect
t
conne
connector
ctor
securely
sec
(
(
9
9
)
)
R
R
e
e
p
p
l
l
a
a
c
c
e
e
r
r
i
i
g
g
h
h
t
t
t
t
r
r
a
a
c
c
t
t
i
i
o
o
n
n
(12) Secure DSP flat cable if loose
(12) Secure DSP flat cable if loose
Replace inverter if wire breaks
Replace inverter if wire breaks
continuity
continuity
continuity
continuity
, then turn on
, then turn on
(15) Repair or replace harness
(15) Repair or replace harness
E-07-20(12)
E-07-20(12)
occurs after pump contactor CLOSE. Line
right side traction motor, faulty
card of logic unit, faulty DSP card of
faulty DSP card of right
motor shorted.
flow when torque instruction is
1
1
Ω
Ω
1
1
Ω
Ω
Less than
Less than
urely
m
m
o
o
t
t
o
o
r
r
(
(
1
1
0
0
)
)
R
R
e
e
p
p
501143
501143
2-47
2-47
cable in right side
right
or
or
more
mo
re
l
l
a
a
c
c
e
e
m
m
o
o
t
t
o
o
r
r
c
c
a
a
b
b
l
l
e
e
s
s
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