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CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
CHAPTER 2 TROUBLESHOOTING FOR CONTROL CIRCUITS
3.30 0 Sea
3.3
Seat Swi
Error code: (E)
Error code: (E)
Situation
Situation
Possible
Possible
cause
cause
Trigger of
Trigger of
the error
the error
code
code
Checks
Checks
(1)
(1)
(2) Stop truck, then move direction lever to neutral
(2) Stop truck, then move direction lever to neutral
Sit properly in operator's seat and release accelerator
Sit properly in operator's seat and release accelerator
pedal
pedal
(4) Turn off power
(4) Turn off power
Sit on seat, then turn on power again
Sit on seat, then turn on power again
(5) Turn off power
(5) Turn off power
(6) Adjust seat suspension
(6) Adjust seat suspension
(8) Disconnect battery plug
(8) Disconnect battery plug
(9) Disconnect connector C-02, then short-circuit
(9) Disconnect connector C-02, then short-circuit
between terminals
between terminals C-
Turn on
Turn on
(10) Disconnect battery plug, then perform inverter
(10) Disconnect battery plug, then perform inverter
discharging work
discharging work
(12) Disc
(12)
Disconnec
1
1
2
2
3
3
4
4
t Switch
tch, Fau
, Faulty S
lty Sett
etting f
ing for Tr
Display: "(E)" flashes. Traction motor operation inhibited. Normal pump and power steering operations. Line
Display: "(E)" flashes. Traction motor operation inhibited. Normal pump and
contactor OPEN.
contactor OPEN.
Operator is not seated, seat switch turned off during running, improper seat suspension
Operator is not seated, seat
switch, faulty main harness, faulty logic unit.
switch, faulty main harness, faulty logic unit.
Detects seat switch opening when turning on power or during running.
Detects seat switch opening when turning on power or during running.
If
If
this
this
fault
fault
occ
occurre
urred
during
during
running
running
If
If
fault
fault
remains
remains
(3) Fail-safe function
(3) Fail-safe function
If fault remains
If fault remains
If
If
fault
fault
remains
remains
(7) Faulty seat switchposition
(7) Faulty seat switchposition
C-02-3
02-3
and C-02-2
and C-02-2
power
power
again
again
If
If
fault
fault
remains
remains
onnect connector
t
connectors E-04
s E-04
and E-03
and E-03
3
3
1
1
2
2
9
9
2
2
7
7
2
2
5
5
2
2
3
3
2
2
1
1
3
3
2
2
3
3
0
0
2
2
8
8
2
2
6 2
6
24
4
-
-
or Tract
action (
ion ((E)
(E)) )
switch turned off during running, improper seat suspension adjustment, faulty seat
d
Normal
Normal
Normal
Normal
Normal
Normal
(11) Replace seat switch
(11) Replace seat switch
of logic unit
of logic unit
E-12
E-12
1
1
9 -
9 -
-
-
-
-
-
-
-
-
7
7
-
-
2
2
0 1
0
18
8
-
-
1
1
4
4
-
-
-
-
8
8
-
-
power steering operations. Line
adjustment, faulty seat
If
If
this
this
fault
fault
occurre
occ
urred
d
when
when
turning
turning
on
on
power
power
-
-
1
1
-
-
2
2
501160
501160
2-71
2-71
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