REPAIR PROCEDURES
AB18EJ&18HJ Maintenance Manual 6-29 © Oct 2020
Fault
code
Description
Cause Check
0268
VCL run error of FR motor
controller
0368
VCL run error of RL motor
controller
0468
VCL run error of RR motor
controller
0069
Power supply of pump
motor controller exceeding
the range
1. Excessively high/low
current of external
loads;
2. Check the setup.
1. Check the external loads of 5V and 10V
loading devices for short circuit or
damage;
2. Check the setup (external supply max and
external supply min);
3. Replace the failed devices.
0169
Power supply of FL motor
controller exceeding the
range
0269
Power supply of FR motor
controller exceeding the
range
0369
Power supply of RL motor
controller exceeding the
range
0469
Power supply of RR motor
controller exceeding the
range
0071
Operation software fault of
pump motor controller
1. Software problem;
2. Controller failure.
1. Update the software to the correct version;
2. Replace the controller.
0171
Operation software fault of
FL motor controller
0271
Operation software fault of
FR motor controller
0371
Operation software fault of
RL motor controller
0471
Operation software fault of
RR motor controller
0072
PDO timeout of pump
motor controller
1. Software problem;
2. CAN bus
commnication error.
1. Update the software to the correct version,
and ensure the bus free of interference;
2. Ensure the the bus terminal resistance is
60 ohm, the bus voltage approx. 2.5V;
3. Ensure the devices on the bus are
correctly connected;
4. Check the on-bus devices are correctly
programmed;
5. Use the exlusion method to replace the
failed devices.
0172
PDO timeout of FL motor
controller
0272
PDO timeout of FR motor
controller
0372
PDO timeout of RL motor
controller
0472
PDO timeout of RR motor
controller
0073
Motor rotary choke of
pump motor controller
1. Motor rotary choke;
2. Encoder fault;
3. Improper wiring or
motor damage
1. Check the power supply and wiring of
motor encoder to ensure the speed signal
can be properly delivered;
2. Ensure the brake is fully disengaged;
0173
Motor rotary choke of FL
motor controller
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