Ninebot ESX Error Code 15

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Error 15 on a Ninebot ESX.
"Brake Hall is abnormal, please check the Throttle Switch, Dashboard & related Connections"

If your Ninebot ESX(ES1, ES2, ES3, or ES4) or SNSC (1.0 or 1.1) is beeping or has a red wrench icon and flashes this code, read below.

If you clicked the wrong error code, go back to the Error Code Index.

Previous Error Code: Ninebot ESX Error Code 14 - Next Error Code: Ninebot ESX Error Code 16

Cause

Error 15 occurs when the hall sensor in the brake receives an incorrect reading upon startup.

This can be due to demagnetization of the neodymium magnets, dislodging of the magnets, or damage to the housing of the brake assembly causing the lever to not seat properly.

It can also be caused if the lever is slightly pressed upon vehicle startup.

Fix

Temporary

In some cases, the error can be resolved by manually adjusting the brake lever until the error disappears before riding.

Permanent

Magnets may be dislodged from the brake assembly and can be re-inserted into the proper slots by taking apart the brake assembly. It is necessary to ensure that the polarity of the magnets is correct upon re-insertion.

In some cases, this does not fix the issue or is not the problem, to begin with. In this case, the easiest solution is to replace the entire brake assembly although it is possible that new magnets would also solve the issue.

If the above doesn't solve error 15, you may need to try following the steps at Replace Ninebot ESX Brake Hall Sensor.