Bafang error 12: Controller current sensor fault

What it means

The controller cannot measure the motor current correctly, so assist is stopped.

Likely causes

• Faulty controller

Symptoms

• Code 12 shows
• No assist

How to fix it

1. Switch the bike off, wait 10 seconds and switch it on again.
2. Take the bike to your dealer; the controller may need replacing.

How urgent is it?

Needs a dealer repair.

More Bafang codes

• 09 Motor phase fault
• 10 Motor too hot
• 11 Motor temperature sensor fault
• 13 Battery temperature sensor fault
• 14 Controller too hot
• 15 Controller temperature sensor fault

All 36 Bafang codes →