Loopback Blanking Plug
From Unofficial Zero Manual
The loopback blanking plug is a Zero electrical connector cap that wires two pins together in a loopback circuit.
- This meant to emulate a basic connectivity feature for the BMS1 connection so that the vehicle's CAN Bus can operate properly.
If you own a non-longbrick X platform model or an S-platform model with a Power Tank, retain this blanking plug in case your second BMS fails to connect or issues errors that prevent your motorcycle from operating.