Hi there and welcome to the forum. Here is the list of Shimano Steps error codes, but it sounds like yours isn't giving you an error right?
Shimano Steps Troubleshooting & Error Codes
W010 – Drive unit temperature higher than normal
Restrictions:
Power assist may be lower than usual.
Remedy:
Stop using until temperature drops. If no improvement, contact place of purchase.
W011 – Cannot detect travel speed
Restrictions:
Max power assist speed may be lower than usual.
Remedy:
Check that speed sensor is properly installed. If no improvement, contact place of purchase.
W012 – Crank installed in incorrect direction or drive-unit setting angle
Remedy:
Reinstall the crank in the correct direction and angle, then turn power back on. If no improvement, contact your local dealer.
W013 – Initialization of torque sensor not completed successfully
Restrictions:
Power assist may be lower than usual.
Remedy:
With foot off the pedal, press battery power button and turn on power again. If no improvement, contact place of purchase.
W030 – Two or more assist switches connected to the system
Restrictions:
Not possible to shift gears with electronic derailleurs
Remedy:
If this error appears, consult your dealer.
W031 – Chain tension may not yet be adjusted or installation angle of cranks needs to be checked
Restrictions:
Assist functions don’t work, including power gear shifting.
Remedy:
Visit dealer to have chain tension and installation angle of cranks checked.
W032 – Electronic derailleur may have been installed in place of mechanical derailleur
Restrictions:
Power assist in [WALK] mode may be lower than usual (NOTE: [Walk] mode may not be accessible in certain regions outside EU.)
Remedy:
Reinstall the derailleur for which the system is configured to support. If no improvement, contact place of purchase.
E010 – System error detected
Restrictions:
No power assist while riding.
Remedy:
Restart the power system. If no improvement, connect unit to E-TUBE and follow instructions. If error persists, contact place of purchase.
E011 – System operation error occurred
Restrictions:
No power assist while riding.
Remedy:
Restart the power system. If no improvement, connect unit to E-TUBE and follow instructions. If error persists, contact place of purchase.
E012 – Initialization of torque sensor failed
Restrictions:
Power assistence is not provided during riding.
Remedy:
With your foot off the pedal, press the power switch of the battery to turn on the power again. Refer to 'Measuring and adjusting the chain tension', then check that the chain tension is appropriate. If the situation does not improve, consult an agent.
E013 – Anomaly detected in drive unit’s firmware
Restrictions:
No power assist while riding.
Remedy:
Restore drive unit's firmware by connecting to E-TUBE. If error persists, contact local dealer.
E014 – Speed sensor may be installed in the wrong position
Restrictions:
No power assist while riding.
Remedy:
Amend position of speed sensor and magnet unit, turn on power and rotate crank clockwise until error resolves. This may take up to 100 rotations.
E020 – Communication error detected between battery and drive unit
Restrictions:
No power assist while riding.
Remedy:
Let your dealer check that the cable between drive unit and battery is properly connected. If cable is damaged, replace with new one.
E021 – Battery connected to drive unit conforms with system standards but is not supported
Restrictions:
No power assist while riding.
Remedy:
Press battery’s power button to turn it on again. If no improvement, contact place of purchase.
E022 – Battery connected to drive unit does not conform with system standards
Restrictions:
A shutdown of all system functions.
Remedy:
Press battery’s power button to turn it on again. If no improvement, contact place of purchase.
E030 – “Total number of gears” setting for motor unit doesn’t match number of gears in internal geared hub
Restrictions:
No power assist while riding.
Remedy:
Let your dealer configure motor unit so that “total number of gears” setting matches number of gears in internal geared hub.
E031 – Chain tension may not yet be adjusted or cranks may not be installed in proper position
Restrictions:
Assist functions don’t work, including power gear shifting.
Remedy:
Let your dealer adjust chain tension and installation angle of cranks. Then select “Yes” in response to W031, which displays when power is turned on for the first time.
E033 – Current firmware not compatible with this system
Restrictions:
Power assistance is not provided during riding.
Remedy:
Connect to E-TUBE PROJECT, then update the firmware for all units to the latest version.
E043 – Error detected in bike computer’s firmware
Restrictions:
No power assist while riding.
Remedy:
Let your dealer restore bike computer’s firmware using E-TUBE.
