TCM FB-8 Series, Service Manual

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3. TROUBLESHOOTING GUIDE
3.3 ERROR CODE TABLE
(1) Drive system (1/5)
Error code on display
Error description
Problem
Resetting
Error code conditions
LED code
Page
blinks.
Drive system neutral interlock
The truck won’
t travel.
Turn the key switch ON when: •
the accelerator is OFF
•
the F/R lever is in neutral
When the key switch is turned ON, •
an accelerator signal is present
•
a forward or reverse travel signal is present.
01
49
101
Low battery voltage detected (Battery voltage dropped)
The truck won’
t travel, steering system
and the load handling system won’
t
work.
Turn the key switch OFF
.
Battery voltage: 28
V
or less (for 48
V
trucks)
42
V
or less (for 72
V
trucks)
This error occurs if the voltage in the EPS system stays below 24
V
(for 48
V
trucks) or
36
V
(for 72
V
trucks) for at least 2 seconds.
09
49
102
Low battery voltage detected (Low output)
Lower output of drive and pump motors
Battery voltage: •
28
V
or less (for 48
V
trucks)
•
42
V
or less (for 72
V
trucks)
Battery voltage (for travel and load-handling systems): •
45
V
or less (for 48
V
trucks)
•
60
V
or less (for 72
V
trucks)
95
49
103
Battery dischar
ge
indicator blinks.
Low battery voltage detected (Overdischar
ge warning)
Lower output of drive and pump motors
The battery dischar
ge
indicator level rises above the warning level (factory set to Level 2).
The battery dischar
ge indicator level drops
below the warning level (factory set to Level 2).
-
49
blinks. 105
Seat switch OFF detected (after the key switch is turned ON)
The truck won’
t travel and the load
handling system won’
t work.
Lift lock solenoid OFF
.
Turn the seat switch ON. (The operator must sit in the seat.)
After the key switch is turned ON, the seat switch stays OFF for the preset period of time, or longer
.
02
50
blinks. 106
Seat switch OFF detected (When the key switch is turned ON)
The truck won’
t travel and the load
handling system won’
t work.
Lift lock solenoid OFF
.
The seat switch is ON when the key switch is turned ON.
The seat switch is OFF when the key switch is turned ON.
02
50
201
Forward or reverse travel switch abnormal
The truck won’
t travel.
Automatically resets when the input returns to normal.
The forward and reverse travel switches are turned ON simultaneously
.
07
50
202
Drive motor inverter unit temp. abnormal
The truck won’
t travel.
The temp. drops to less than 109°C [228°F].
This error occurs when the temp. reaches 109°C [228°F].
34
50
203
Drive motor inverter unit temp. too high
The truck can be driven (but the output is limited).
The temp. drops to 90°C [194°F] or below
.
This error occurs when the temp. reaches 94°C [201°F].
33
50