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RideFixer Android App Scan errors, compare sounds and diagnose e-bike issues on your phone.
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Shimano Error Code

W013 - Torque Sensor Initialization

Torque sensor failed to initialize correctly at power-on.

Medium severity Caution rideability Soon urgency

What it means

Assist calibration did not complete with stable pedal force reference.

Common causes

  • Pedal pressure during startup
  • Sensor calibration drift

Symptoms

  • Weak assist
  • Delayed assist engagement

How to fix it

  • Power on without pedal load
  • Restart system
  • Run service calibration
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