HELI CQD16X1, Operation & Service Manual

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button again, the light on the meter turns off and the truck is standby, the
traction system works.
7) Steering proximity switch
The steering proximity switch is of NPN type and the sensing distance is 3-5mm.
when the proximity switch is on, yellow indicator at the tail of the switch turns on. If
automatic centering can not be realized when turning on the key switch, check if the
proximity switch is in the sensing distance or is damaged.
4.9.3 Diagnosis
1) General instruction
The traction control system, loading control system, steering control system and
intelligent 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 electric lock 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
Ways of diagnosis: the digital hand manual which can supply detailed diagnosis
information; the can-bus which will send fault code and the code and module node
will display in the meter.
2) Traction system common fault (TR node displayed on meter)
Fault Meaning explanation Remedy