Introduction to the KG4 Color Display and Operations
Display Functions
- Battery capacity
- Speed (including real-time speed display, maximum speed display and average speed display)
- Distance including trip and odometer (ODO)
- PAS level selection
- Backlight always on
- Headlight turn on / off
- 6 Km/h walking assist
- Output power display
- Error code
- Setting that has multiple parameters such as: wheel diameter, speed limit, battery capacity setting, various PAS level and power assisted parameter setting, power on password setting, controller current limit setting, etc.
- USB Type C charging port
Button Definition
- The main body of the display is made of PC material, and the button part is made of soft silicone material, all in black. There are three buttons on the K5303 display. Including power on/mode button, plus button and minus button.
- In the following description, the button is replaced by the text [MODE]. the button is replaced by the text [UP]. and the button is replaced by the text [DOWN]
Speed / Single Trip / ODO
- Speed
- Short press the [MODE] button to switch the speed information, and speed (real-time speed), AVG (average speed) and max (maximum speed) are displayed respectively, as shown in the figure
- Single Trip/ODO
- Long press [MODE]+ [DOWN]button to switch the mileage information, and the indication is: ODO (cumulative mileage) →TRIP (single trip), as shown in the figure:
Walking Assist Mode
When the display is turned on, hold down the [DOWN] button for 2 seconds, and the ebike will enter the state of walking assist mode. The ebike will travel at a constant speed of 6km/h.
The walking assist mode can only be used when the user pushes the ebike. Do not use it when riding.
Headlight On/Off
Hold the [UP] button to display the interface as shown, and the icon appears, indicating that the lights have been turned on. Long press the [UP] button again to turn off the lights
PAS Level Selection
Short press the [UP] or [DOWN] button to switch the PAS level, the motor output power will be changed accordingly by the PAS level of the ebike. The default range of PAS levels is 0-5. At 0, the ebike functions just like a regular bicycle. Level 1 is the lowest Power Assist output level, and level 5 is the highest output power level of the motor.
Battery and Output Power Indicator
Show how much power you have left in your battery and how much power you are currently using.
Error Codes
When the ebike electronic control system fails, the display will automatically display an ERROR code. For the definition of the error codes, see the list below.
| Error Code | Description |
| 21 | Current abnormal |
| 22 | Throttle abnormal |
| 23 | Motor phase failure |
| 24 | Motor hall abnormal |
| 25 | Brake abnormal |
| 30 | Communication abnormal |
| 31 | Power on/off button adhesion |
| 34 | 6km function button adhesion |
| For more information see the article KG4 Error Code Troubleshooting | |
The ebike will not continue to run after the fault occurs. Only when the fault has been eliminated can you exit the fault display interface.