# Display & Error Codes The CEMOTO D-series instrument panel reports faults as decimal error codes. This page is the full reference. --- ## Error code reference | Code | Status | Meaning | | --- | --- | --- | | **E00** | Normal | No fault. The vehicle is operating normally. | | **E01** | Reserved | Reserved code — not used. | | **E02** | Brake Error | Fault in the brake circuit / brake sensor. The brake signal or brake lever sensor is not reporting correctly. Check the brake connector and lever sensor, then verify the wiring to the controller. | | **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 | The battery voltage has dropped below the protection threshold. Charge the battery. If the code appears on a fully charged battery, check the charger output and battery health. | | **E07** | Motor Error | Motor fault — hall sensor, phase wiring or motor internal fault. Check the motor connector and phase wires before replacing the motor. See [Motor & Controller Faults](https://help.cemotoride.com/link/333). | | **E08** | Throttle Error | Throttle fault. Check the throttle connector, the throttle's free return, and the throttle signal before replacing the throttle. See [Throttle & Controls](https://help.cemotoride.com/link/337). | | **E09** | Controller Error | Controller fault. This code indicates a controller-internal failure. Confirm power supply and all connectors before replacing the controller — the fault is sometimes upstream (short circuit, damaged phase wire). | | **E10** | Communications Error | Communication failure between the display and the controller. Check the display cable and the controller connector. | | **E12** | BMS Communications Error | Communication failure between the controller and the battery management system. Check the battery connector and BMS wiring. | | **E13** | Front Light Error | Front light circuit fault. Check the headlight connector and wiring before replacing the headlight assembly. | > **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](https://help.cemotoride.com/link/358) | [Brakes](https://help.cemotoride.com/link/328) | | E06 Low Voltage | [Low Voltage E06](https://help.cemotoride.com/link/359) | [Charging Faults](https://help.cemotoride.com/link/329) · [Range & Performance](https://help.cemotoride.com/link/335) | | E07 Motor Error | [Motor Error E07](https://help.cemotoride.com/link/360) | [Motor & Controller Faults](https://help.cemotoride.com/link/333) | | E08 Throttle Error | [Throttle Error E08](https://help.cemotoride.com/link/361) | [Throttle & Controls](https://help.cemotoride.com/link/337) | | E09 Controller Error | [Controller Error E09](https://help.cemotoride.com/link/362) | [Motor & Controller Faults](https://help.cemotoride.com/link/333) | | E10 Communications Error | — | [Display & Settings](https://help.cemotoride.com/link/330) | | E12 BMS Communications Error | — | [Charging Faults](https://help.cemotoride.com/link/329) · [Motor & Controller Faults](https://help.cemotoride.com/link/333) | | E13 Front Light Error | [Front Light Error E13](https://help.cemotoride.com/link/363) | [Throttle & Controls](https://help.cemotoride.com/link/337) | E10 and E12 have no dedicated video walkthrough. For both, the fault is almost always a **connector or cable problem** rather than a failed component — reseat every connector in the affected circuit before ordering a part. The general wiring video is a useful companion for both: [Connecting the Wires](https://help.cemotoride.com/link/355). --- ## 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!](https://help.cemotoride.com/link/358) | | E06 | [CEMOTO E06 Error? What Would You Check First?](https://help.cemotoride.com/link/359) | | E07 | [Cemoto E07 Error — Motor & Wiring Troubleshooting Guide](https://help.cemotoride.com/link/360) | | E08 | [E08 Error — Check the Throttle Before Replacing Parts](https://help.cemotoride.com/link/361) | | E09 | [E09 Error — Check These Before Replacing the Controller](https://help.cemotoride.com/link/362) | | E13 | [E13 Error? Don't Swap the Headlight Yet — Check This First](https://help.cemotoride.com/link/363) | | Battery not charging | [CEMOTO Battery Not Charging? What Would You Check First?](https://help.cemotoride.com/link/357) | | Won't turn on | [CEMOTO Won't Turn On? What Would You Check First?](https://help.cemotoride.com/link/365) | | Horn not working | [Horn Not Working — Check These Before Replacing Parts](https://help.cemotoride.com/link/364) | 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](https://help.cemotoride.com/link/336). --- ## 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, the fault is still present. If it returns intermittently, suspect a loose connector or an intermittent wiring fault — reseat every connector in the affected circuit. --- ## 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](https://help.cemotoride.com/link/330). > **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](https://help.cemotoride.com/link/391). --- ## Related pages - [Display & Settings](https://help.cemotoride.com/link/330) — P01–P17 parameters and key operations - [Troubleshooting Overview](https://help.cemotoride.com/link/327) - [Motor & Controller Faults](https://help.cemotoride.com/link/333) - [Throttle & Controls](https://help.cemotoride.com/link/337) - [All Video Tutorials](https://help.cemotoride.com/link/393) — 23 step-by-step guides *Error code definitions are taken from the official CEMOTO electric dirt bike owner manual, section 5.1.*