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Yamaha Error Code

E03 - Torque Sensor Fault

Pedal torque reading is outside the valid range.

High severity Caution rideability Soon urgency

What it means

The bike cannot calculate support from rider input.

Common causes

  • Pedal load during startup
  • Sensor calibration issue
  • Bottom bracket sensor fault

Symptoms

  • Weak assist
  • Jerky assist
  • No assist

How to fix it

  • Restart without pedal pressure
  • Check crank area
  • Dealer calibration
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