What should you do if the indicator light on an electric vehicle doesn’t illuminate during normal operation?

　　What should you do if the dashboard light on an electric vehicle doesn’t illuminate during normal operation?

　　Recently, some electric vehicle owners have encountered this issue: why doesn’t the instrument panel light up when the car’s power is turned on? Today, we’ll break it down—typically, there are four common reasons behind this phenomenon.

　　1. The power switch is damaged, and the instrument cannot be powered on normally.

　　When the power switch has poor contact or is already damaged, the electric vehicle’s instrument panel will fail to power on properly. In such cases, it is generally necessary to diagnose and repair the faulty connection points in the power cable. If the issue persists, the power switch must be replaced with a new one.

　　II. The fuse has blown, resulting in a failure to supply power normally.

　　If an electric vehicle experiences a malfunction, the fuse may blow, cutting power to the instrument cluster and preventing it from displaying information. In such cases, replacing the fuse can resolve the issue.

　　3. Poor contact in the battery connection leads to unstable power supply.

　　Some users may experience the electric vehicle’s instrument panel either displaying or failing to display; in reality, this is often caused by poor contact in the battery cables. Loose or faulty cable connections can lead to unstable battery power and result in the display not functioning. To resolve these issues, check the cables for looseness and reconnect them securely.

　　4. The fuse has not been switched on, so the meter does not display any reading.

　　The new national standard now requires fuses or circuit breakers to be installed at both the charging cable and the battery’s output terminals. However, if an electric vehicle’s instrument panel fails to display a warning, it may be because the fuse has not tripped. In such cases, the solution is straightforward: simply reset the fuse, and the issue will be resolved.

　　In short, when an electric vehicle’s instrument panel fails to display after startup, it is usually due to one of these four causes. For EV owners, this is a minor issue that doesn’t warrant concern—once the root cause is identified, it can be resolved promptly. However, to minimize the likelihood of such problems in everyday use, regular maintenance of the vehicle is essential.

　　Replace the electric vehicle instrument panel

　　Since electric vehicles rely on the limited energy stored in their onboard batteries, they typically use battery‑voltage displays that are separate from steering‑wheel and other control signals. Therefore, in an emergency, simply identifying the positive and negative battery wiring, as well as the 15V, 12V, and 5V ground connections in the instrument cluster circuitry, and ensuring these wires are properly linked, allows you to replace the EV’s instrument panel and restore basic display functionality.

　　That’s all for today’s introduction from the editor at the electric‑vehicle instrument manufacturer. Our company, Jiangmen Jinggong Motorcycle Parts Co., Ltd., is a motorcycle‑parts enterprise that integrates research, development, production, and sales. If you have any needs in this area, please feel free to contact us.