EP Equipment LIST JX0, Service Manual

Page: 178 / 206

REV. 07/2019
TROUBLESHOOTING
9
165
Table 9.1 Troubleshooting of Common Faults (continued)
Fault Fault Symptom Troubleshooting Order * Troubleshooting Measures
Steering Fault 1. The vehicle cannot
be steered (the
vehicle can travel)
a. Stepper motor or its circuit
connection failure
b. Steering motor or its circuit
connection failure
c. Proximity switch or its circuit
connection failure
d. Steering controller failure
Controller failure error, carry out
troubleshooting according to the
fault code information on the
instrument (see Section 6.9).
1) Check if the mechanical
connection between the
steering wheel and stepper
motor is solid;
(see Section 6.6)
2) Check the stepper motor or
its connection circuit;
(see Section 6.6)
3) Check the steering motor or
its connection circuit;
(see Section 5.7)
4) Check the proximity switch or
its connection circuit.
(see Section 5.6)
5) Replace the controller.
Other Failures 1. Blue lights do not
light
a. Light failure or circuit not
conducted
Check the light and its circuit
connection
(see Section 8.7)
2. Flash lights do not
flash
a. Light failure or circuit not
conducted
Check the light and its circuit
connection
(see Section 8.8)
3. When the paltform
lower, the lowering flash
light do not flash
a. Light failure or circuit not
conducted
Check the light and its circuit
connection
(see Section 8.12)
4. Horn does not
sound
a. Horn switch or its circuit
connection failure
b. Horn failure
1) Check the horn button and its
connection circuit;
(see Section 6.3)
2) Check the horn and its
connection circuit;
(see Section 6.3)
* Carry out trouble shooting in accordance with the order listed
in the table, it can help you quickly identify problems and
resolve accordingly.