... /36V, Blue: lock wire, Black: GND, Green/Yellow: RX/TX wire. If using the water proof connector, Users cannot ... have slightly different, all with actual use version. 30 button is connected to the bottom of the display ... wire cable. 4,Installation Instruction Fix the display and 30 button onto the handlebar and adjust to an appropriate ... malfunction codes. Definition Diagram of Error Codes BP LCD display