E025
Battery does not recognize the drive unit
The battery cannot identify the connected drive unit, so no system functions start. This occurs when a non-genuine drive unit is connected or when the power cord between battery and motor has come loose or is damaged. The dealer verifies that genuine, matching components are connected and inspects the power cord.
- Drive system
- Shimano STEPS
- Category
- Battery
- Motor behavior
- assist off
- DIY-friendly?
- shop recommended
Roadside self-help
- Reseat the battery and restart once.
- If the error remains, have the dealer inspect the power cord and component pairing.
Possible causes
- Power cord between battery and drive unit loose or damaged high
- Non-genuine drive unit or battery in the system medium
Symptoms
- System does not start at all
- Battery LED may flash an error pattern
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- dealer diagnostic tool required
- Component: battery
- Component: drive unit
- Component: power cable