Handling Error Codes

1. Error Code E034: Throttle Fault

If your electric bike screen says E034, it means there's somethirng funky with the throttle.

why does it occur

Usually, it's either the throttle sensor acting up or it's not hookeed up right
Lots of things can cause this, like hiccups during manufacturingor damage
from a rough ride.

Troubleshooting

Here's what you can try

Check the throttle sensor wire. Unplug it, then plug it back inIf the E034
message disappears, it was probably just a bad connection. Easy fix, just make
sure everything's snug.

If the E034 message sticks around even after you've checkedthe wire, it's
likely the throttle itself is busted. No worries, though! Just reach out to our
customer service team, and we'll send you a new throttle.

Please do the test according to the video

2. Error Code E037: Brake Abnormality

If you see error code E037 on the display screen, it indicates a brake abnormality.

Why does it occur

A common cause of this problem is a bad brake sensor cable connection, partly due to a faulty display.

Which cables are the brake sensor ones

The yellow labeled ones as shown in the picture below are the brake sensor cables, one on the left and one on the right.

Troubleshooting

1.Bad brake sensor cable connection

1.1Which sensor works unwell

Reconnect the left and right sense cable separately until the E37 code disappears（For example, if E37 disappears after disconnecting the left side the trouble point is on the left side.）

If you unplug the brake cables on both sides at the same time and the screen does not display E037, there is a problem with the brakes on both sides and need to be replaced.

2.Display fault

If both sides are unplugged at the same time and the display still displays E037, it means there is a problem with the display, You need to reset the display. You can reset the display by following these steps:

Long-press the "+" and "-" buttons to enter the display settings. Then, short-press the power button until you reach the P16 setting.

Long-press the "-" button for 5 seconds to restore the factory settings.

Once you've made the adjustments, long-press the "+" and "-" buttons again to save the changes. 

If the display still displays E037 after resetting, then need to replace the display.