Advertisement
2-36
2-36
3.13 3 Tra
3.1
Tracti
ction M
Error code: 26
Error code: 26
Display: "26".
Display: "26". Traction motor and pump motor oper
Situation
Situation
HOLD
HOLD
Possible
Possible
Stall current flowed more than 7s right traction motor, faulty
Stall current flowed more than 7s right traction motor, faulty right traction inverter current sensor, shorted
cause
cause
harness wiring, faulty right traction inverter DSP card, faulty logic unit.
harness wiring, faulty right traction inverter DSP card, faulty logic
Trigger of
Trigger of
the error
the error
7s is measured while stalling.
7s is measured while stalling.
code
code
Checks
Checks
(1) Turn off power, then turn on power again
(1) Turn off power, then turn on power again
Confirm error code display
Confirm error code display
(2) Check to see if truck is operated with heavy cargo
(2) Check to see if truck is operated with heavy cargo
load or on steps when motor stalls
load or on steps when motor stalls
Normal
Normal
(4) Disconnect battery plug, then perform inverter
(4) Disconnect battery plug, then perform inverter
discharging work
discharging work
(6) Dis
(6)
Disconne
connect conne
and remove DSP cover, then check DSP flat cable for
and remove DSP cover, then check DSP flat cable for
looseness or wire breakage
looseness or wire breakage
Normal
Normal
Power supply
Power supply
(7) Disc
(7)
Disconnec
onnect connector E-01
Check continuity between E-01-5 and E-06-16(9)
Check continuity between E-01-5 and E-06-16(9)
Check continuity between E-01-6 and E-06-20(12)
Check continuity between E-01-6 and E-06-20(12)
Continuity
Continuity
CAN
CAN
(9)
(9) Disc
Disconnec
onnect connector E-02
Check continuity between E-02-5 and E-06-3(3)
Check continuity between E-02-5 and E-06-3(3)
Check continuity between E-02-6 and E-06-4(4)
Check continuity between E-02-6 and E-06-4(4)
Continuity
Continuity
(10) Connec
(10)
Connect connector E-01
power again
power again
(12) Measure voltage between E-06-16(9) and
(12) Measure voltage between E-06-16(9) and
E-06-20(12)
E-06-20(12)
Confirm valu
Con
firm
Normal
Normal
(13) Disconnect battery plug, then perform inverter discharging work
(13) Disconnect battery plug, then perform inverter discharging work
(14) Replac
(14)
Replace DSP c
e DSP
on Moto
otor L.
r L.H.,
H., Sta
Stall T
ll Time
imer (26
Traction motor and pump motor operation inhibited. Line contactor HOLD and ST contactor
N
N
o
o
e
e
r
r
r
r
o
o
r
r
,
,
p
p
r
r
o
o
b
b
l
l
e
e
m
m
r
r
e
e
o
o
steeps
steeps
Heavy
Heavy
ct
connector E-06
ctor E-06
of left
of left
traction inve
traction
Abnormal
Abnormal
t connector E-01
of logic unit
of logic unit
No
No
continuity
continuity
t connector E-02
of logic unit
of logic unit
Abnormal
Abnormal
and
and
no
no
t connector E-01
to logic unit, then turn on
to logic unit, then turn on
value is
e is
12 ±
12 ±
1 V
1 V
Abnormal
Abnormal
card of left
ard of left
traction inverter
traction inverter
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
r (26) )
ation inhibited. Line contactor HOLD and ST contactor
c
c
c
c
u
u
r
r
s
s
(3) See troubleshooting for code "24"
(3) See troubleshooting for code "24"
load
load
(5) Operate under normal
(5) Operate under normal
inverter
rter
(8) Secure harness if loose
(8) Secure harness if loose
Replace lefttraction inverter if
Replac
continuity
continuity
(11) Repair or replace harness
(11) Repair or replace harness
(15) Replace power supply card of logic unit
(15) Replace power supply card of logic unit
right traction inverter current sensor, shorted
unit.
E
E
r
r
r
r
o
o
r
r
c
c
o
o
d
d
e
e
"
"
24
24"
"
condition
cond
ition
e lefttraction inverter if
wire breaks
wire breaks
501136
501136
Advertisement
