How to Interpret and Deal With Instrument Fault Codes

G51 Display Fault Code（Suitable for models: :F1，F1Pro，F2，F2Pro，DK200，DK200Pro）

1. **E02: **Brake Lever Fault; The brake lever is broken

**Solution: **Remove the brake lever cable; If the fault code disappears, replace the brake lever

2. **E07: **Motor Fault;

• 1. Check if the motor wires are damaged;
• 2 Re plug and unplug the motor cable;
• 3. Replace the motor.

**Solution: **Replace the motor

3. **E08: **Throttle Fault;

• 1. The throttle lever did not return to its original position before starting up;
• 2. The plug of the throttle lever cable is loose;
• 3. The throttle lever is broken.

**Solution: **Replace the throttle

4. **E09: **Controller Malfunction; Is there a short circuit in the motor wire? The controller is broken?

**Solution: **Replacing the controller

5. **E10: **Communication Reception Failure;

• 1. Unplug all the wires on the meter and controller and plug them back in;
• 2. After idling the rear wheel, suspend the rear wheel and turn the foot pedal. Does the meter display the speed? Does the rear wheel emit electrical noise?
• 3. The controller or motor is broken.

**Solution: **Replace the controller or motor

YL81F Display Fault Code（Suitable for models: F3PRO,F3PRO MAX）

1. **br0000: **Brake Lever Fault; Does the brake lever return to its original position?

**Solution: **Replace the brake lever

2. **E001: **Controller Malfunction; Check the connection of each line in the controller, unplug it and plug it back in.

**Solution: **Replace the controller

3. **E002: **Communication Failure; Check the connection of each line in the controller, unplug it and plug it back in, Check the connection of the motor wires.

**Solution: **Replace the controller or motor

4. **E003: **Hall Fault; Check the connection of each line in the controller, unplug it and plug it back in; Check the connection of the motor wires.

**Solution: **Replace the controller or motor

5. **E004: **Throttle Fault; Check if the throttle lever has returned to its original position; Check the connection of the throttle lever cable.

**Solution: **Replace the throttle

6. **Error05: **Brake Lever Fault; Does the brake lever return to its original position?

**Solution: **Replace the brake lever

7. **Error06: **Battery Undervoltage;

• 1. Check if the parameter value of P03 is within 48;
• 2. The battery needs to be charged.

**Solution: **Replace the battery

8. **Error07: **Motor Fault;

• 1. Check if the motor wires are damaged;
• 2. Re-plug and unplug the motor cable.

**Solution: **Replace the motor

9. **Error08: **Throttle Fault; Check if the throttle lever has returned to its original position; Check the connection of the throttle lever cable.

**Solution: **Replace the throttle

10. **Error09: **Controller Malfunction; Is there a short circuit in the motor wire? The controller is broken?

**Solution: **Replace the controller

11. **Error10: **Communication Reception Failure;

• 1. Unplug all the wires on the meter and controller and plug them back in.
• 2. After idling the rear wheel, suspend the rear wheel and turn the foot pedal. Does the meter display the speed? Does the rear wheel emit electrical noise?
• 3. The controller or motor is broken.

**Solution: **Replace the controller or motor

Updated on: 18/01/2024