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Display & Error Codes

The CEMOTO D-series instrument panel reports faults as decimal error codes. Find your display code below. The code points to an area to check; it does not identify a part to buy.

Error code reference

Code Status Meaning
E00 Normal No fault. The vehicle is operating normally.
E01 Reserved Reserved code — not used.
E02 Brake Error An unexpected brake signal. With power off, check that the levers return freely. Stop riding if braking is poor, a lever sticks or the error remains.
E03 PAS Sensor Error (Riding Mark) Pedal assist sensor fault. Marked "not realized" in the manual — may not be implemented on all configurations.
E04 Walk Assist Mode Informational. The bike is in walk assist mode, not a fault.
E05 Real-Time Cruise Informational. The bike is in cruise mode, not a fault.
E06 Low Voltage Protection Low-voltage protection. Let a hot battery cool and charge with the original charger. Contact support if the warning returns after charging.
E07 Motor Error A motor-related fault, possibly involving the motor or its connections. Contact support before replacing parts.
E08 Throttle Error An unexpected throttle signal. With power off, check that the throttle returns freely. Do not ride with a sticking throttle.
E09 Controller Error A controller-related fault. The controller manages motor power. The code alone does not prove this unit has failed; contact support if it remains or returns.
E10 Communications Error The display and controller are not communicating correctly. Look for visible cable damage with power off and contact support.
E12 BMS Communications Error The bike cannot communicate with the battery protection electronics, called the BMS. With power off, check the battery is seated properly, then contact support if it remains.
E13 Front Light Error A front-light-related fault. With power off, look for visible damage or moisture. Contact support before replacing the light.

Codes E03, E04 and E05 are informational or not implemented. Do not replace parts on the basis of these codes alone.

Error codes mapped to this documentation

Code Video walkthrough Written guide
E02 Brake Error Brake Error E02 Brakes
E06 Low Voltage Low Voltage E06 Charging Faults · Range & Performance
E07 Motor Error Motor Error E07 Motor & Controller Faults
E08 Throttle Error Throttle Error E08 Throttle & Controls
E09 Controller Error Controller Error E09 Motor & Controller Faults
E10 Communications Error — Display & Settings
E12 BMS Communications Error — Charging Faults · Motor & Controller Faults
E13 Front Light Error Front Light Error E13 Connecting the Wires — Connector & Wiring Guide

E10 and E12 have no dedicated video walkthrough. Send support your model and a photo of the code. Do not unplug unfamiliar wiring or open electrical parts. See safe visual wiring checks.

Video troubleshooting guides

CEMOTO publishes a video walkthrough for the most commonly reported codes. Each one follows the same principle: check these before replacing parts.

Code / issue Video walkthrough
E02 CEMOTO E02 Error? Check THESE Before Replacing Parts!
E06 CEMOTO E06 Error? What Would You Check First?
E07 Cemoto E07 Error — Motor & Wiring Troubleshooting Guide
E08 E08 Error — Check the Throttle Before Replacing Parts
E09 E09 Error — Check These Before Replacing the Controller
E13 E13 Error? Don't Swap the Headlight Yet — Check This First
Battery not charging CEMOTO Battery Not Charging? What Would You Check First?
Won't turn on CEMOTO Won't Turn On? What Would You Check First?
Horn not working Horn Not Working — Check These Before Replacing Parts

Each of these pages embeds the video inline, with a short written checklist of what to check and in what order. Full video catalog: Technical Guides.

Clearing an error code

After correcting the underlying fault, cycle the power:

  1. Turn the electric door lock / power switch off.
  2. Wait approximately 10 seconds.
  3. Turn the power back on.

If the code returns immediately or comes and goes, contact support. Do not repeatedly reset the display to keep riding with a fault.

When the display itself is faulty

If the display does not illuminate at all, is dim, or is frozen, the fault may be the display or its cable rather than a system error. See Display & Settings.

Warranty note: The instrument panel (display) carries a 6-month warranty period, shorter than the 12-month period for the frame, battery, controller and motor. See Warranty.

Error code definitions are taken from the official CEMOTO electric dirt bike owner manual, section 5.1.

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