Error list solution

After replacing the motor, test. If the fault persists after replacing the motor, replace the controller and test again.

Try again after replacing the accelerator shifter.

Try again after replacing the controller.

Try unplugging and plugging the brake lever into the port again. If the error persists after unplugging and plugging it in again, you will need to replace the brake lever to troubleshoot the problem.

The battery is low. Please charge it and try again.

This indicates a problem with the instrument receiver. It is recommended to replace the controller first to troubleshoot. If the error persists after replacing the controller, then the instrument itself needs to be replaced for further troubleshooting.

This indicates a fault in the instrument. It is recommended to replace the instrument first to troubleshoot. If the error persists after replacing the instrument, then the controller needs to be replaced for troubleshooting.

The error message indicating overheating of the motor should disappear once the motor cools down. If the error persists after the motor has been stationary for a period of time, the motor needs to be replaced for further troubleshooting.

This fault occurs after the controller has been overheating for a long time, and disappears when the controller cools down. Check whether the controller's heat dissipation is good.

Replace bearing cup assembly

First, tighten the screws at the fixed pole. If there is still wobbling after tightening them all, it means that the bearing assembly is worn and causing the wobbling. Replace the bearing assembly to troubleshoot.

First, ask the customer if the charger can charge normally and if the indicator light on the charger changes from red to green correctly during charging. Next, ask if the customer has a multimeter. If so, measure the battery voltage and the charger's output voltage. If the charger has no output voltage, replace the charger first. If the battery voltage is below 40V, replace the battery first. If both the battery voltage and the charger voltage are normal, replace the meter to troubleshoot.

First, obtain the following data from the customer: local weather temperature, customer weight, the gear used during riding, and road conditions. Because the range data we provide is the battery's maximum range, and the tester weighed 65kg, rode at a constant speed in second gear on a flat road until the battery was depleted, a slight deviation in range during the customer's actual riding is normal. However, if the deviation is too large, we need to consult the customer for the corresponding data to determine if their range is within the normal range. Also, have the customer fully charge the battery, turn it on, and take a picture of the total odometer reading. Then, have them ride again at a constant speed in second gear on a flat road until the battery is depleted, and take another picture of the total odometer reading to see the maximum range.

Replace the instrument to troubleshoot.

The problem may be caused by interference in the motor. It is recommended to replace the motor to troubleshoot the issue.

First, unplug and replug the motor wires to see if the error message disappears. If it still doesn't work, the motor needs to be replaced.

First, unplug and replug the accelerator dial port to check if the error is caused by a loose port. If the error persists after unplugging and replugging the port, you will need to replace the accelerator dial to troubleshoot the problem.

Replace the controller

First, reconnect and reconnect the brake shifter connector to check if the error is caused by a loose connector. If the error persists after reconnecting and reconnecting the connector, the brake shifter needs to be replaced for further troubleshooting.

This error message appears when the vehicle's battery is low. Turn off the vehicle and connect the charger to charge it until fully charged. If the error persists after a full charge, the battery needs to be replaced for further troubleshooting.

First, reconnect the integrated cable to the instrument's port to check if the error is caused by a loose port. Next, check if the pins inside the port are bent. If they are bent, the instrument needs to be replaced. If the pins inside the port are not bent, and reconnecting the cable does not resolve the error, the instrument needs to be replaced for further troubleshooting.

First, reconnect the integrated cable to the instrument's port to check if the error is caused by a loose port. Next, check if the pins inside the port are bent. If they are bent, the instrument needs to be replaced. If the pins inside the port are not bent, and reconnecting the cable does not resolve the error, the instrument needs to be replaced for further troubleshooting.

The controller overheating caused by continuous high-power operation can be resolved by shutting down and letting it stand for a while. If the error persists after a day of inactivity, the controller needs to be replaced for troubleshooting.

First, ask the customer if the charger can charge normally and if the indicator light on the charger changes from red to green correctly during charging. Next, ask if the customer has a multimeter. If so, measure the battery voltage and the charger's output voltage. If the charger has no output voltage, replace the charger first. If the battery voltage is below 40V, replace the battery first. If both the battery voltage and the charger voltage are normal, replace the meter to troubleshoot.

First, obtain the following data from the customer: local weather temperature, customer weight, the gear used during riding, and road conditions. Because the range data we provide is the battery's maximum range, and the tester weighed 65kg, rode at a constant speed in second gear on a flat road until the battery was depleted, a slight deviation in range during the customer's actual riding is normal. However, if the deviation is too large, we need to consult the customer for the corresponding data to determine if their range is within the normal range. Also, have the customer fully charge the battery, turn it on, and take a picture of the total odometer reading. Then, have them ride again at a constant speed in second gear on a flat road until the battery is depleted, and take another picture of the total odometer reading to see the maximum range.

test helpArticle English version

First, unplug and replug the motor connector. If the problem persists after unplugging and replugging, you will need to replace the motor to troubleshoot the issue.

Replace the controller

First, try unplugging and replugging the controller port. If the problem persists after unplugging and replugging, you will need to replace the controller to troubleshoot the issue.

First, unplug and replug the instrument panel port. If the problem persists after unplugging and replugging, the instrument panel needs to be replaced.

First, unplug and replug the instrument panel port. If the problem persists after unplugging and replugging, the instrument panel needs to be replaced.

Replace brake lever

This is because the customer adjusted the default voltage setting. The C1pro's default voltage is 48V. If it is adjusted to 36V, the battery indicator will show a full charge, but the battery level will be low. If it is adjusted to 48V or higher, the battery level will show a full charge, but the battery indicator will be low.
Simply adjust the voltage back to the default setting as instructed to restore the normal battery display.

Replace the front fork first

After removing the disc brake, check if the noise persists by running the engine without load. If it does, the motor needs to be replaced; otherwise, simply adjust the disc brake.

Check if the motor Hall effect sensor wires are damaged, if the motor is damaged, and if the motor wiring is damaged. Reconnect the motor wiring. If the error persists after these steps, replace the motor to troubleshoot and resolve the error.

Check the dials for damage and the instrument panel for any damage or breakage. Reconnect the instrument panel to the port. If the error persists after these steps, replace the instrument panel to troubleshoot and resolve the error.

Check the controller for water damage, broken or detached wiring, short circuits, burnt or blackened areas, and signs of burst capacitors. If the error persists, replace the controller for further troubleshooting.

If the battery voltage is below 40V, the controller input port voltage is insufficient. Please charge the battery as soon as possible to resolve the error. If the error persists after fully charging, the battery may be damaged. Replace the battery to troubleshoot the problem.

Check the main power line for damage and the communication line between the instrument and the controller for damage or disconnection. Check the internal communication circuit of the controller or instrument for damage. If the error persists after completing the above operations, replace the instrument first to troubleshoot and resolve the error. If the error still exists after replacing the instrument, then the controller needs to be replaced for troubleshooting.

Check the main power line for damage and the communication line between the instrument and controller for damage or disconnection. Check the internal communication circuit of the controller or instrument for damage. If the error persists after completing the above operations, replace the controller first to troubleshoot and resolve the error. If the error still exists after replacing the controller, then the instrument needs to be replaced for troubleshooting.

The motor's magnets have a high-temperature performance rating of H, with a maximum temperature resistance of 120°C. Wait for the motor temperature to decrease (motor current limiting at 110°C; if the error persists after the motor has been shut down and stationary for a period of time, the controller needs to be replaced for troubleshooting). Stop the motor at 120°C for protection.

First, ask the customer if the charger can charge normally and if the indicator light on the charger changes from red to green correctly during charging. Next, ask if the customer has a multimeter. If so, measure the battery voltage and the charger's output voltage. If the charger has no output voltage, replace the charger first. If the battery voltage is below 40V, replace the battery first. If both the battery voltage and the charger voltage are normal, replace the meter to troubleshoot.

First, obtain the following data from the customer: local weather temperature, customer weight, the gear used during riding, and road conditions. Because the range data we provide is the battery's maximum range, and the tester weighed 65kg, rode at a constant speed in second gear on a flat road until the battery was depleted, a slight deviation in range during the customer's actual riding is normal. However, if the deviation is too large, we need to consult the customer for the corresponding data to determine if their range is within the normal range. Also, have the customer fully charge the battery, turn it on, and take a picture of the total odometer reading. Then, have them ride again at a constant speed in second gear on a flat road until the battery is depleted, and take another picture of the total odometer reading to see the maximum range.

First, check the LED strip ports for looseness and wiring breaks as instructed in the tutorial. Try unplugging and replugging them to see if it returns to normal. If it still cannot switch, then the LED strip needs to be replaced.

After confirming the wheels are not stuck, restart the motor if it stalls.

If the battery is overvoltage, allow the customer to let it rest for two days. If the error persists after resting, the customer will need to connect the reset software to perform a battery reset.

If the battery is low on voltage, have the customer connect the charger and fully charge it before turning on the device to check for any error messages. If the error persists, the battery needs to be replaced. If the charger indicator light does not change from red to green when connected to the charger, then the charger needs to be replaced for troubleshooting.

First, unplug and replug the main line port. If this doesn't work, the controller needs to be replaced.

First, try unplugging and replugging the brake lever. If the error persists after this process, the brake lever needs to be replaced.

First, unplug and replug the accelerator DIP switch. If the error persists after unplugging and replugging, then the accelerator DIP switch needs to be replaced.

First, unplug and plug the main line port again. If the problem persists after unplugging and plugging, replace the main line to troubleshoot. If the error still occurs after replacing the main line, the controller needs to be replaced for troubleshooting.

First, unplug and replug the motor wires. If the error persists after unplugging and replugging, then the motor needs to be replaced. If the error still occurs after replacing the motor, then the controller needs to be replaced for troubleshooting.

The motor overheated due to continuous high-power load, causing an error message. Turning the motor off and letting it rest for a few minutes before turning it back on should resolve the error. If the error persists after resting, the software needs to be reset. If resetting doesn't solve the problem, the motor needs to be replaced for further troubleshooting.

We need to ask the customer if there is any resistance during implementation. If so, replace the controller first; otherwise, replace the display assembly first.

First, have the customer separate the brake lever, grip, and shifter to create some clearance. If it still gets stuck and won't spring back, then the accelerator shifter needs to be replaced.

The dot indicates that the customer has activated the speed limit mode.
Simply follow the troubleshooting instructions to remove the speed limit.

The customer has triggered the hidden combination lock and needs to unlock it to use the device normally.
Simply follow the troubleshooting tutorial to unlock it.https://youtu.be/rs0Hmi7oS5k?si=3Y0JFoVAWYa5JzF8

1. Please first ask the customer if the charger can charge normally, and whether the charger indicator light changes from red to green normally during charging.
2. Please ask the customer if they have a multimeter. If so, please measure the battery voltage and the charger output voltage to see what they are. (A normal fully charged battery voltage is 54.6V, and the charger output voltage is also 54.6V. If the charger voltage is lower than this, there is a problem. If the battery voltage is lower than 36V, the battery is faulty.)
3. If the customer has checked the battery voltage and the charger output voltage and found no problems, then the problem lies with the display screen assembly. Replace the display screen assembly first to troubleshoot.

An E2 error occurred, and the battery was replaced, but the display still showed an E2 error. This indicates a controller problem; the controller should be replaced first.

If the customer experiences resistance when turning the ball bearing left or right, this indicates a problem with the ball bearing; replacing the bearing will resolve the issue.

Simply replace the display screen lens.

Simply replace the front wheel.

First, have the customer check if the shock absorber locking screws are loose. If not, have the customer replace the corresponding front and rear shock absorbers.

If there is an unusual noise when the rear wheel is turned, please have the customer remove the disc brake and then turn the rear wheel to check if the noise persists. If it does, replace the motor; if not, replace the brake disc.

This is because the customer adjusted the default voltage setting. The G2pro's default voltage is 48V. If it is adjusted to 36V, the battery indicator will show a full charge, but the battery level will be low. If it is adjusted to 52V or higher, the battery level will show a full charge, but the battery indicator will be low.
Enter the parameter settings page P02, adjust the value back to 48, save and exit to restore normal operation.

1. Reconnect the motor wiring terminals and check if the error persists. If the error still occurs, the motor needs to be replaced first. If the error persists after replacing the motor, the controller needs to be replaced.

1. Re-plug the accelerator shifter connector.
2. If the error persists after re-plugging, the accelerator shifter needs to be replaced.

Replace the controller

1. First, have the customer plug in the charger to see if it charges normally. If it charges normally, have the customer fully charge it for at least 10 hours and then check the voltage. If it cannot charge normally, the charger needs to be replaced.
2. Have the customer open the cover and re-plug the battery terminals to reactivate the battery protection board and see if the error message persists.
3. If the above two steps have been checked and the problem still persists, then the battery needs to be replaced.

Try unplugging and replugging the integrated cable connector. If that doesn't work, replace the controller first.

Try unplugging and replugging the integrated cable and the instrument terminal. If that doesn't work, replace the instrument first.

Error 009 indicates that the controller temperature is too high. The error can be resolved by having the customer turn off the machine, let it stand still for a while, and then turn it back on.

1. Have the customer adjust the disc brake.
2. If the noise persists after adjustment, check if the disc brake rotor is bent. If bent, the disc brake rotor needs to be replaced.
3. If the disc brake rotor is not bent and the noise persists after adjustment, the disc brake assembly needs to be replaced.

1. Have the customer check the outer tire for any punctures.
2. If there are any, both the inner and outer tires need to be replaced; otherwise, only the inner tire needs to be replaced.

1. First, confirm with the customer whether charging is normal (whether the charger indicator light changes from red to green). If charging is normal, replace the ignition lock first.
2. If the customer reports that charging is not normal and the charger indicator light does not change from red to green, then the customer needs to use a multimeter to check the battery/charger voltage (battery voltage is a maximum of 54.6V and a minimum of 33V; if the battery voltage is within this range, it is normal. The charger output voltage is 54.6V; a voltage lower than this is abnormal, and a difference of 1-2V is normal. After checking, replace the part with the abnormal voltage).
3. If both the battery voltage and the charger output voltage are normal, replace the charging interface first.

1. First, confirm the instrument panel voltage with the customer after a full charge. If the voltage is normal, have the customer take a photo after a full charge to see the total mileage, and the total mileage after the battery is depleted. (Confirm the customer's weight, weather temperature, and road conditions. If the customer weighs around 60-70kg, the weather temperature is not low, and the road conditions are flat, but the range is insufficient, then it's a battery issue and the battery needs to be replaced.)
2. If the instrument panel still shows insufficient voltage after a full charge, confirm with the customer whether there is a problem with the charger or charging port. Have the customer check the charger's output voltage. The charger's output voltage is 54.6V. If it's lower than this value, it indicates a problem with the charger. If the value is normal, then it's a problem with the charging port.

1. First, confirm with the customer that the charger indicator light illuminates correctly when plugged in. If so, the customer needs to record a video showing the device not fully charged after disconnecting the charger and turning it on. Once confirmed, a replacement charging port can be sent to the customer for initial replacement.
2. If the customer plugs in the charger but the indicator light does not illuminate, then the charger is faulty, and a replacement charger can be arranged.
3. If the customer has a multimeter, they can directly test the charger, charging port, and battery voltage to determine the correct voltage. The correct voltage is indicated in the product specifications and can be referred to accordingly.

If the motor makes a lot of noise while idling, it may be due to a Hall effect fault inside the motor, and the motor needs to be replaced. (Note the difference in noise; one type of abnormal noise is that of a disc brake scraping, which is a metallic friction and collision sound, while the noise from a Hall effect fault in the motor is a roaring sound.)

1. Check if all lights except the headlights are working properly. If they are, the problem is with the headlights, and it's recommended to replace them.
2. If the side lights and taillights are also not working when the headlights are not working, and the turn signal switch does not activate the turn signals, and the horn does not sound, then the problem is with the light switch, and it needs to be replaced.

Check if all lights except the turn signal can be turned on and illuminated normally. If they can, then the problem is with the turn signal; if not, then the problem is with the light switch.

Replace the instrument directly

Replace the taillights directly

1. First, confirm with the customer whether non-zero start mode is activated. If so, simply adjust it back to zero start mode.
2. If the customer cannot move the vehicle when pressing the accelerator in zero start mode, check if the power-off brake is continuously engaged (have the customer check if the brake lights are constantly on). If so, have the customer disconnect the brake lever and try pressing the accelerator again. If it moves, the problem is with the brake lever. If it still doesn't work, it might be a short circuit in the taillight causing the power-off brake to remain engaged; replace the taillight.
3. If the above two steps don't resolve the issue, reconnect the accelerator shifter. If the problem persists after reconnecting, replace the accelerator shifter.

Replace motor hub

Replace headlights for troubleshooting

If a customer's vehicle won't turn on, first ask if they have a multimeter. If so, follow the video tutorial to measure the actual voltage of the battery and charger. If the battery and charger voltages are normal, replace the instrument cluster and wiring harness. If the battery and charger voltages are inaccurate, replace the corresponding parts.

1. Check the customer's maximum idle speed. If it's 25 km/h, it's possible the customer has adjusted the speed limiting mode or connected the speed limiting wire on the controller, resulting in a maximum speed of only 25 km/h.
2. If the customer's idle speed is not 25 km/h when fully charged, but is lower than the maximum speed listed on the parameter table, the customer needs to check if the default values ​​of P3/P4 in the internal parameters are normal. The default values ​​can be found in the instrument manual on Baidu Cloud.

1. If the customer's weight is normal and the speed difference is significant, it may be a motor problem, requiring motor replacement for troubleshooting.
2. If the speed difference is small (within 5-8 km/h) and the customer's weight is normal, then it's normal. Alternatively, it could be due to a heavier customer causing a decrease in load speed.

First, send the customer a controller and switch. Try replacing the switch to see if it still makes the sound. If the problem persists, replace the controller.

Instrument problem, replace the instrument to troubleshoot.

1. Reconnect the motor wiring terminals and check if the error persists. If the error still occurs, the motor needs to be replaced first. If the error persists after replacing the motor, the controller needs to be replaced.

1. Re-plug the accelerator shifter connector.
2. If the error persists after re-plugging, the accelerator shifter needs to be replaced.

Replace the controller

1. First, have the customer plug in the charger to see if it charges normally. If it charges normally, have the customer fully charge it for at least 10 hours and then check the voltage. If it cannot charge normally, the charger needs to be replaced.
2. Have the customer open the cover and re-plug the battery terminals to reactivate the battery protection board and see if the error message persists.
3. If the above two steps have been checked and the problem still persists, then the battery needs to be replaced.

Try unplugging and replugging the integrated cable connector. If that doesn't work, replace the controller first.

Try unplugging and replugging the integrated cable and the instrument terminal. If that doesn't work, replace the instrument first.

Error 009 indicates that the controller temperature is too high. The error can be resolved by having the customer turn off the machine, let it stand still for a while, and then turn it back on.

1. Have the customer adjust the disc brake.
2. If the noise persists after adjustment, check if the disc brake rotor is bent. If bent, the disc brake rotor needs to be replaced.
3. If the disc brake rotor is not bent and the noise persists after adjustment, the disc brake assembly needs to be replaced.

1. Have the customer check the outer tire for any punctures.
2. If there are any, both the inner and outer tires need to be replaced; otherwise, only the inner tire needs to be replaced.

1. First, confirm with the customer that the charger indicator light illuminates correctly when plugged in. If so, the customer needs to record a video showing the device not fully charged after disconnecting the charger and turning it on. Once confirmed, a replacement charging port can be sent to the customer for initial replacement.
2. If the customer plugs in the charger but the indicator light does not illuminate, then the charger is faulty, and a replacement charger can be arranged.
3. If the customer has a multimeter, they can directly test the charger, charging port, and battery voltage to determine the correct voltage. The correct voltage is indicated in the product specifications and can be referred to accordingly.

1. First, confirm the instrument panel voltage with the customer after a full charge. If the voltage is normal, have the customer take a photo after a full charge to see the total mileage, and the total mileage after the battery is depleted. (Confirm the customer's weight, weather temperature, and road conditions. If the customer weighs around 60-70kg, the weather temperature is not low, and the road conditions are flat, but the range is insufficient, then it's a battery issue and the battery needs to be replaced.)
2. If the instrument panel still shows insufficient voltage after a full charge, confirm with the customer whether there is a problem with the charger or charging port. Have the customer check the charger's output voltage. The charger's output voltage is 54.6V. If it's lower than this value, it indicates a problem with the charger. If the value is normal, then it's a problem with the charging port.

1. First, confirm with the customer that the charger indicator light illuminates correctly when plugged in. If so, the customer needs to record a video showing the device not fully charged after disconnecting the charger and turning it on. Once confirmed, a replacement charging port can be sent to the customer for initial replacement.
2. If the customer plugs in the charger but the indicator light does not illuminate, then the charger is faulty, and a replacement charger can be arranged.
3. If the customer has a multimeter, they can directly test the charger, charging port, and battery voltage to determine the correct voltage. The correct voltage is indicated in the product specifications and can be referred to accordingly.

If the motor makes a lot of noise while idling, it may be due to a Hall effect fault inside the motor, and the motor needs to be replaced. (Note the difference in noise; one type of abnormal noise is that of a disc brake scraping, which is a metallic friction and collision sound, while the noise from a Hall effect fault in the motor is a roaring sound.)

1. Check if all lights except the headlights are working properly. If they are, the problem is with the headlights, and it's recommended to replace them.
2. If the side lights and taillights are also not working when the headlights are not working, and the turn signal switch does not activate the turn signals, and the horn does not sound, then the problem is with the light switch, and it needs to be replaced.

Check if all lights except the turn signal can be turned on and illuminated normally. If they can, then the problem is with the turn signal; if not, then the problem is with the light switch.

Replace the instrument directly

Replace the taillights directly

1. First, confirm with the customer whether non-zero start mode is activated. If so, simply adjust it back to zero start mode.
2. If the customer cannot move the vehicle when pressing the accelerator in zero start mode, check if the power-off brake is continuously engaged (have the customer check if the brake lights are constantly on). If so, have the customer disconnect the brake lever and try pressing the accelerator again. If it moves, the problem is with the brake lever. If it still doesn't work, it might be a short circuit in the taillight causing the power-off brake to remain engaged; replace the taillight.
3. If the above two steps don't resolve the issue, reconnect the accelerator shifter. If the problem persists after reconnecting, replace the accelerator shifter.

1. Check the customer's maximum idle speed. If it's 25 km/h, it's possible the customer has adjusted the speed limiting mode or connected the speed limiting wire on the controller, resulting in a maximum speed of only 25 km/h.
2. If the customer's idle speed is not 25 km/h when fully charged, but is lower than the maximum speed listed on the parameter table, the customer needs to check if the default values ​​of P3/P4 in the internal parameters are normal. The default values ​​can be found in the instrument manual on Baidu Cloud.

1. If the customer's weight is normal and the speed difference is significant, it may be a motor problem, requiring motor replacement for troubleshooting.
2. If the speed difference is small (within 5-8 km/h) and the customer's weight is normal, then it's normal. Alternatively, it could be due to a heavier customer causing a decrease in load speed.

1. First, have the customer remove the disc brake and run it idle to see if the abnormal noise persists. If it does, prioritize replacing the motor for troubleshooting.

Instrument problem, replace the instrument to troubleshoot.

The Hall sensor inside the motor may be faulty. Try replacing the motor first to troubleshoot.

1. First, check if the screws at the folding position are tightened. If not, tighten them. If still not tightened, replace the upright folding mechanism first. 2. If the steering is not responsive, replace the bearing headset first.

Simply replace the small beam head and the threaded pipe.

Replace battery to troubleshoot

Troubleshooting by replacing the charger

Rear drive Hall effect fault ------- Connect the rear motor connector to the front drive and the front motor connector to the rear drive. See if an E-011 fault is reported. If an E-011 fault is reported, it's a rear motor Hall effect fault; replace the rear motor and test again. Otherwise, it's a controller Hall effect drive fault; replace the controller and test again.

accelerator shifter malfunction ------- Disconnect the waterproof connector from the accelerator shifter and check if the pins are bent. If not, replace the accelerator shifter and test again. If the E002 error persists after replacing the accelerator shifter, replace the instrument cluster and test again.

The controller fault code E-003 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-003 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-003 only appears briefly and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

Instrument fault transmission ------ First, disconnect the waterproof connectors from the instrument and the main line, and from the controller and the main line to check if the pins are bent. If they are not bent, replace the instrument and test again. If the fault persists after replacing the instrument, replace the controller and test again.

Instrument receiver failure ------ First, disconnect the waterproof connectors from the instrument and the main line, and the controller and the main line respectively, and check if the pins are bent. If they are not bent, replace the instrument and test again; if the fault persists after replacing the instrument, replace the controller and test again.

Rear controller over-temperature protection – The controller overheats and the protection will recover after the controller cools down naturally.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

Front controller fault – E-013 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-013 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-013 only appears for a brief moment and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Controller reception failure ------ Testing after controller replacement

Controller over-temperature protection – The controller overheats and will recover after it cools down naturally.

First, try replacing the headlight module to troubleshoot. If the problem persists, it indicates water has entered the headlight, and the headlight itself needs to be replaced.

Simply replace the instrument.

If there is an unusual noise when the rear wheel is turned, please have the customer remove the disc brake and then turn the rear wheel to check if the noise persists. If it does, replace the motor; if not, replace the brake disc.

This is because the customer adjusted the default voltage setting P02. The G2master's default voltage is 52V. If it is adjusted to 36V, the battery indicator will show a full charge, but the battery level will be low. If it is adjusted to 52V or higher, the battery level will show a full charge, but the battery level will be low.

Simply adjust the voltage back to the default setting as instructed to restore the normal battery display.

The problem is with the headlights; the headlights need to be replaced for troubleshooting.

Instrument problem, replace the instrument to troubleshoot.

First, remove the disc brake and then spin it again without load. If it spins normally without any abnormal noise after removing the disc brake, then replace the brake disc to troubleshoot.

Controller problem, replace it directly.

If the rotation is difficult or makes a clicking sound, there might be a problem with the internal truss. Try replacing the truss first to troubleshoot.

Only the fuse needs to be replaced.

Instrument problem, replace the instrument to troubleshoot.

We need to ask the customer if there is any resistance during implementation. If so, replace the controller first; otherwise, replace the display assembly first.

First, have the customer separate the brake lever, grip, and shifter to create some clearance. If it still gets stuck and won't spring back, then the accelerator shifter needs to be replaced.

The dot indicates that the customer has activated the speed limit mode.
Simply follow the troubleshooting instructions to remove the speed limit.

The customer has triggered the hidden combination lock and needs to unlock it to use the device normally.
Simply follow the troubleshooting tutorial to unlock it.https://youtu.be/rs0Hmi7oS5k?si=3Y0JFoVAWYa5JzF8

Simply replace the display screen lens.

First, have the customer check if the shock absorber locking screws are loose. If not, have the customer replace the corresponding front and rear shock absorbers.

If there is an unusual noise when the rear wheel is turned, please have the customer remove the disc brake and then turn the rear wheel to check if the noise persists. If it does, replace the motor; if not, replace the brake disc.

Troubleshooting by replacing the controller

If the upright pole makes a jamming or squeaking sound when rotating, it may be due to damage to the upper and lower bearings.

This is because the customer adjusted the default voltage setting. The G3pro's default voltage is 52V. If it is adjusted to 36V, the battery indicator will show a full charge, but the battery level will be low. If it is adjusted to 52V or higher, the battery level will show a full charge, but the battery indicator will be low.
Simply adjust the voltage back to the default setting as instructed to restore the normal battery display.

Rear drive Hall effect fault ------- Connect the rear motor connector to the front drive and the front motor connector to the rear drive. See if an E-011 fault is reported. If an E-011 fault is reported, it's a rear motor Hall effect fault; replace the rear motor and test again. Otherwise, it's a controller Hall effect drive fault; replace the controller and test again.

accelerator shifter malfunction ------- Disconnect the waterproof connector from the accelerator shifter and check if the pins are bent. If not, replace the accelerator shifter and test again. If the E002 error persists after replacing the accelerator shifter, replace the instrument cluster and test again.

The controller fault code E-003 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-003 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-003 only appears briefly and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

1. First, check if there is brake fluid in the brake lever. If not, add brake fluid according to this tutorial.
2. If the brake lever still doesn't work despite having brake fluid, replace the brake lever and the hydraulic brake.

Instrument fault transmission ------ First, disconnect the waterproof connectors from the instrument and the main line, and from the controller and the main line to check if the pins are bent. If they are not bent, replace the instrument and test again. If the fault persists after replacing the instrument, replace the controller and test again.

Instrument receiver failure ------ First, disconnect the waterproof connectors from the instrument and the main line, and the controller and the main line respectively, and check if the pins are bent. If they are not bent, replace the instrument and test again; if the fault persists after replacing the instrument, replace the controller and test again.

Front drive Hall effect fault ------- Connect the rear motor connector to the front drive and the front motor connector to the rear drive. See if an E-001 fault is reported. If an E-001 fault is reported, it's a front motor Hall effect fault; replace the front motor and test again. Otherwise, it's a controller Hall effect drive fault; replace the controller and test again.

Rear controller over-temperature protection – The controller overheats and the protection will recover after the controller cools down naturally.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

Front controller fault – E-013 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-013 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-013 only appears for a brief moment and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Controller reception failure ------ Testing after controller replacement

Controller over-temperature protection – The controller overheats and will recover after it cools down naturally.

If there is any liquid leaking from the shock absorber, replace the shock absorber first to check.

If all the lights on the scooter are not working, the light panel module may be faulty. Replace the light panel module first to troubleshoot.

After confirming the wheels are not stuck, restart the motor if it stalls.

If the battery is overvoltage, allow the customer to let it rest for two days. If the error persists after resting, the customer will need to connect the reset software to perform a battery reset.

If the battery is low on voltage, have the customer connect the charger and fully charge it before turning on the device to check for any error messages. If the error persists, the battery needs to be replaced. If the charger indicator light does not change from red to green when connected to the charger, then the charger needs to be replaced for troubleshooting.

First, unplug and replug the main line port. If this doesn't work, the controller needs to be replaced.

First, try unplugging and replugging the brake lever. If the error persists after this process, the brake lever needs to be replaced.

First, unplug and replug the accelerator DIP switch. If the error persists after unplugging and replugging, then the accelerator DIP switch needs to be replaced.

First, unplug and plug the main line port again. If the problem persists after unplugging and plugging, replace the main line to troubleshoot. If the error still occurs after replacing the main line, the controller needs to be replaced for troubleshooting.

First, unplug and replug the motor wires. If the error persists after unplugging and replugging, then the motor needs to be replaced. If the error still occurs after replacing the motor, then the controller needs to be replaced for troubleshooting.

We need to ask the customer if there is any resistance during implementation. If so, replace the controller first; otherwise, replace the display assembly first.

First, have the customer separate the brake lever, grip, and shifter to create some clearance. If it still gets stuck and won't spring back, then the accelerator shifter needs to be replaced.

The dot indicates that the customer has activated the speed limit mode.
Simply follow the troubleshooting instructions to remove the speed limit.

The customer has triggered the hidden combination lock and needs to unlock it to use the device normally.
Simply follow the troubleshooting tutorial to unlock it.https://youtu.be/rs0Hmi7oS5k?si=3Y0JFoVAWYa5JzF8

1. Please first ask the customer if the charger can charge normally, and whether the charger indicator light changes from red to green normally during charging.
2. Please ask the customer if they have a multimeter. If so, please measure the battery voltage and the charger output voltage to see what they are. (A normal fully charged battery voltage is 54.6V, and the charger output voltage is also 54.6V. If the charger voltage is lower than this, there is a problem. If the battery voltage is lower than 36V, the battery is faulty.)
3. If the customer has checked the battery voltage and the charger output voltage and found no problems, then the problem lies with the display screen assembly. Replace the display screen assembly first to troubleshoot.

Simply replace the display screen lens.

First, have the customer check if the shock absorber locking screws are loose. If not, have the customer replace the corresponding front and rear shock absorbers.

If there is an unusual noise when the rear wheel is turned, please have the customer remove the disc brake and then turn the rear wheel to check if the noise persists. If it does, replace the motor; if not, replace the brake disc.

If the upright pole makes a jamming or squeaking sound when rotating, it may be due to damage to the upper and lower bearings.

Try replacing the accelerator shifter first.

This is because the customer adjusted the default voltage setting. The G4max's default voltage is 60V. If it is adjusted to 36V, the battery indicator will show a full charge, but the battery level will be low. If it is adjusted to 60V or higher, the battery level will show a full charge, but the battery level will be low.
Simply adjust the voltage back to the default setting as instructed to restore the normal battery display.

Rear drive Hall effect fault ------- Connect the rear motor connector to the front drive and the front motor connector to the rear drive. See if an E-011 fault is reported. If an E-011 fault is reported, it's a rear motor Hall effect fault; replace the rear motor and test again. Otherwise, it's a controller Hall effect drive fault; replace the controller and test again.

accelerator shifter malfunction ------- Disconnect the waterproof connector from the accelerator shifter and check if the pins are bent. If not, replace the accelerator shifter and test again. If the E002 error persists after replacing the accelerator shifter, replace the instrument cluster and test again.

The controller fault code E-003 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-003 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-003 only appears briefly and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

Instrument fault transmission ------ First, disconnect the waterproof connectors from the instrument and the main line, and from the controller and the main line to check if the pins are bent. If they are not bent, replace the instrument and test again. If the fault persists after replacing the instrument, replace the controller and test again.

Instrument receiver failure ------ First, disconnect the waterproof connectors from the instrument and the main line, and the controller and the main line respectively, and check if the pins are bent. If they are not bent, replace the instrument and test again; if the fault persists after replacing the instrument, replace the controller and test again.

Front drive Hall effect fault ------- Connect the rear motor connector to the front drive and the front motor connector to the rear drive. See if an E-001 fault is reported. If an E-001 fault is reported, it's a front motor Hall effect fault; replace the front motor and test again. Otherwise, it's a controller Hall effect drive fault; replace the controller and test again.

Rear controller over-temperature protection – The controller overheats and the protection will recover after the controller cools down naturally.

Battery undervoltage fault ------ The controller's undervoltage protection value is around 41V. If the battery level is below 41V and an error E-005 is reported, it indicates insufficient battery power; simply charge the battery. If an error E-005 suddenly appears when the battery level is significantly higher than 41V, the battery may be damaged; replace the battery and test again.

Front controller fault – E-013 has two meanings: one is instantaneous overcurrent protection, and the other is a short circuit in the controller's MOSFET. If E-013 is always present, it indicates a short circuit in the controller's MOSFET; replace the controller and test again. If E-013 only appears for a brief moment and then disappears, it indicates an excessive instantaneous current, triggering the controller's protection.

Controller reception failure ------ Testing after controller replacement

Controller over-temperature protection – The controller overheats and will recover after it cools down naturally.