193
VEHICLE DIAGNOSIS
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 insucient.
3. Motor damage (power reduction)
1. Charge the battery
2. Inate 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
To Next Page
Loading...
