CFMoto Uforce 500 - Electronic Power Steering (EPS) fault diagnosis and solution

VEHICLE DIAGNOSIS
166
Electronic Power Steering (EPS) fault diagnosis and solution
Failure
Probable Reason
Solution
Steering without
assistance
1- Wire Connectors have bad
contact or are disconnected
2- The fuse blew out
3- Relay damage
4- The controller, motor, or sensor is
damaged
1- Check whether wire
connectors and pins are
fully inserted
2- Replace the fuse (30A)
3- Contact your dealer
4- Contact your dealer
Power assist doesn’t
weigh the same for left
and right
1- The median output voltage has
deviation
2- Controller, motor or sensor is
damaged
1. Contact your dealer
2. Contact your dealer
When system is ‘ON’, the
steering swings to both
sides
1. Motor is mounted backwards
2. Controller or sensor is damaged
1. Contact your dealer
2. Contact your dealer
Steering becomes heavy
1. Battery has power loss
2. Air pressure of the tires (front) is
insufficient.
3. Motor damage (power reduction)
1. Charge the battery
2. Inflate the tires
3. Contact your dealer
System has noise
1. Motor damage
2. Gap of lower steering shaft
assembly or mechanical steering
assembly is too large
3. Installation of lower steering shaft
assembly or mechanical steering
assembly is loose
1. Contact your dealer
2. Contact your dealer
3. Contact your dealer