The main Shimano error codes
Error message
W010 A high-temperature
abnormality was detected
in the drive unit.
W101 (W011) No bicycle
speed signal was detected
from the speed sensor.
W012 The crank may be
installed in the wrong
direction.
W103 (W013) Sensor
initialization could not be
completed normally
E010 An abnormality was
detected in the drive unit.
E012 Sensor initialization
could not be completed
normally.
E014 An abnormal bicycle
speed signal was detected
from the speed sensor
E020 Communication
error between the battery
and drive unit detected.
Restrictions Solutions
Assistance
Do not ride the bicycle with the assist mode enabled until the
will be lower
drive unit temperature drops.
than normal.
If the error persists, contact your place of purchase or a
distributor for assistance.
The
Have your place of purchase perform the following.
maximum
Install the speed sensor in the appropriate location.
speed up to
Install the magnet in the appropriate location.
which assist
(Refer to the ""Disc brake"" section in ""General operations""
is provided
or to the STEPS series dealer's manual for how to install the
will be lower
removed magnet.)
than normal.
If the error persists, or if the information above does not apply,
contact your distributor for assistance.
-
Have your place of purchase perform the following.
Re-install the crank in the specified direction, then turn the
power back ON.
If the error persists, contact your distributor for assistance.
Assistance
Press the battery power button to turn the power OFF and
will be lower
then ON again without placing your feet on the pedals.
than normal.
If the error persists, contact your place of purchase or a
distributor for assistance.
Assist will not
Refer to the SHIMANO STEPS user's manual and perform the
be provided
following.
when riding
Turn the power OFF and then ON again.
If the error persists, stop using it and contact your place of
purchase or a distributor for assistance.
Assist will not
Press the battery power button to turn the power OFF and
be provided
then ON again without placing your feet on the pedals.
when riding.
Or, have your place of purchase perform the following.
Adjust the chain tension.
If the error persists, contact your distributor for assistance.
Assist will not
Have your place of purchase perform the following.
be provided
Install the speed sensor and magnet in the appropriate
when riding.
locations.
If the bicycle has been modified, return it to the factory default
setting.
Ride the bicycle for a short while after following the
instructions above to clear the error.
If the error persists, or if the information above does not apply,
contact your distributor for assistance.
Assist will not
Have your place of purchase perform the following.
be provided
Check to see if the cable between the drive unit and battery
when riding.
is connected correctly, and check the power cord for
abnormalities.
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