My bike doesn't come/turn on

My e-bike no longer turns on and the display/motor assistance doesn't engage.

  1. Check the battery for proper fit in the bike and its charge level. Measure its output voltage using a volt-/multimeter.
  2. Make sure the battery fuses are intact and exchange them to make sure as described here:
  3. Check all cable & plug connections for proper fit and/or damage, such as cable breakage, kinks and tightness. Especially the display cable needs to be inspected!
  4. Check the control unit and the wiring harness connector.
  5. Disconnect and reconnect each connector one at a time, making sure they are reasonably connected, clean and free of debris.