Yamaha PW error E11: Switch unit error
Yamaha PW series (PW-X3, PW-X2, PW-X, PW-ST, PW-TE, PW-SE, PW-CE) and Giant/Liv SyncDriveFix at homeSafe to keep riding
E11 is a fault in the handlebar switch (assist selector) or its connection. Buttons stop responding or the display shows E11 while assist keeps working in the last mode. Also shown on Giant/Liv (SyncDrive) bikes, sometimes with a leading zero (E01) or as 'Er' followed by the number on older Yamaha displays.
Likely causes
- Switch connector loose or corroded
- Water inside the switch after washing
- Cable crushed by a grip or brake lever clamp
- Switch button stuck
How to fix Yamaha PW error E11
- Reconnect the switch cable, dry the connector
- Check the cable is not trapped under the grip or lever clamp
- Press each button once to free a stuck one
- If unresponsive, have the dealer replace the switch
Go to a dealer if: Dealer with the Yamaha/Giant diagnostic tool (Yamaha PW diagnostic or Giant's RideControl/e-bike diagnostic software) is needed to read the fault log and test the component when the home checks do not clear the code.
Warranty: Component faults inside the drive unit, battery or display are covered by the bike brand's warranty via the dealer; damage from crashes, water ingress or tuning devices is not.
Typical cost: A replacement switch unit is inexpensive.
Warranty: Component faults inside the drive unit, battery or display are covered by the bike brand's warranty via the dealer; damage from crashes, water ingress or tuning devices is not.
Typical cost: A replacement switch unit is inexpensive.
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.
Frequently asked
Can I reset E11 myself?
Reconnecting and power-cycling clears it in most cases.
Can I keep riding with E11?
Yes, the motor usually keeps working in the last selected mode.
Is E11 covered by warranty?
Yes for a failed switch within the warranty period.
Related Yamaha PW codes
Not an official Yamaha PW document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.