Error code Error Measure
U1071
Average power output of the AES-25
exceeds
the power limit.
Check whether the load on the
AES-25 motor is too high (steering
column stiff, bushes or bearings
worn). Contact the dealer.
U1072
Temperature of the AES-25 exceeds
the temperature
limit.
Switch off the AES-25 and let it cool
down. If the problem persists,
contact the dealer.
U1074
The AES-25 steering controller was
not initialised.
Turn the steering wheel manually by
one-quarter
turn.
U1075 - U1078
Reception interferences or sending
interferences
of the CAN signal.
Check all connectors and
connections. Switch the connection
box off and back on again. If the
problem persists, contact the dealer.
U1079
The steering angle sensor is not
connected.
Check the connections.
If necessary
, replace the faulty
sensor.
If the problem persists, contact the
dealer.
U1080
Short-circuit on the steering angle
sensor
.
Contact the dealer. The sensor may
have to be replaced.
U1082
CompactFlash file system has less
than 1 % available
memory.
Check the memory usage in the
miniature
view; see page 224.
If necessary, delete or export data
from the inventory manager; see
page 216.
U3001 Data transfer failed. Try to import or export again.
U4001
Error with the initialisation of the track
line.
Create track line again; see
page
146.
U4006 No valid system calibration available. Calibrate steering; see page 166.
U5001
Steering sub system was not
detected.
Check whether the steering sub
system is switched
on.
Check whether the lock switch for
road transport is disabled.
Check whether the correct steering
controller is selected; see page 78.
T | Troubleshooting| Error codes
MG5574-EN-II | B.1 | 25.10.2016
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