HELI G3 Series, Operation & Service Manual

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4.6 Diagnosis
4.6.1 General instruction
The traction control system, loading control system, steering control system and color
screen instrument system assembled in the truck are continually monitoring micro-processor
controller. They all have a diagnosis program to a main function. The program includes the
following point:
(1) Diagnosis when the key switch being off: the circuit of the watching dog, current
censor, charging of the capacity, phase voltage, driving of the connector, CAN-bus connector,
the order of the switch operation, the output of the acceleration, the synchronism of the two
micro-processor, the input of the hardware that having something to do with the safety.
(2) The alternate check
；
The circuit of the watch dog, phase voltage, current censor,
driving of the connector, can-bus connector
(3) Check when working: the circuit of the watch dog, the driving of the connector, the
current sensor, can-bus connector
(4) Continuously check: inverter temperature, motor temperature
The information is transmitted through CAN-bus and the fault code and module node
are displayed on the color screen instrument meter.
4.6.2 Fault diagnosis of INMOTION
Table 4-3 Troubleshooting
Fault
code
Description Remedy
20
Acceleration switch active at key
on
Loose the acceleration pedal
21
Direction switch active at key on
Place the direction switch on neutral gear
22
Application Direction switch
both on error
1
）
Fault of direction switch
2
）
Fault of harness; short circuit of direction signal
23
Application traction pot value out
of range error
1
）
Fault of acceleration pedal or the analog quantity
needs to be demarcated.
2
）
Fault of harness; the output signal of accelerator is
broken.
24
Application traction switch off
and pot value more than 30%
1
）
Fault of acceleration pedal or the analog quantity
needs to be demarcated.