E-Bike & Scooter Error Code Database

Free roadside diagnostic reference for Bafang, Rad Power, Bosch and more. Find error code meanings, symptoms, and step-by-step fix guides. Built for commuters, delivery riders, and DIY mechanics who need answers fast.

15Error Codes
8Brands
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🔋 Battery Range Calculator

Estimate your eBike's remaining range based on battery voltage, capacity, and riding conditions.

15Error Codes
8Brands
Li-ion / LiFePO4Battery Types
EN 15194EU Standard
UL 2849Safety Certified

Popular Error Codes

Shimano · Error E010

Battery voltage abnormal — voltage outside safe operating range (below 30V or above 54V)

E...

Specialized · Error W04

Motor temperature warning — approaching thermal limit (85°C internal temp detected)

W...

Yamaha · Error 15

Torque sensor calibration error — sensor reading out of range or signal lost

E...

Brose · Error 20

Battery temperature warning — battery outside optimal 10-40°C range

E...

Engwe · Error 09

Controller overtemperature — internal temperature exceeded 85°C safety limit

E...

Bafang · Error 30

Communication failure between display and motor controller

D...

Battery Range Degradation Estimator

See how your battery capacity degrades over charge cycles.

Brands

Bafang

4 error codes

Bosch

3 error codes

Brose

1 error codes

Engwe

1 error codes

Rad Power Bikes

3 error codes

Shimano

1 error codes

Specialized

1 error codes

Yamaha

1 error codes

🔬 Our Diagnostic Methodology

STEP 1

Data Source

eBike manufacturer service manuals, EN 15194 test data

STEP 2

Verification

Cross-referenced with real-world repair shop data

STEP 3

Update Cycle

Monthly review with new model releases

STEP 4

Standards

EN 15194 (EU), UL 2849 (US), IEC 62133 (battery safety)

📋 Data Sources & Standards