What is the issue when the new energy power fault light keeps displaying?

[MaggieDella]

The reasons for the new energy power fault light to illuminate include faults in individual cells within the battery pack, motor controller faults, motor faults, etc. To further determine the fault point, it is necessary to use a diagnostic tool compatible with this electric vehicle for diagnosis, locate the module reporting the fault, and read the data stream to identify the fault cause for resolution. Low Battery Warning Light: This fault light is actually a warning light, serving the same purpose as the fuel warning light in conventional vehicles, reminding the user to recharge. Some electric vehicles with LCD screens will display on the screen: "Please charge in time!" Power Battery Internal Fault Light: This fault light indicates that the fault point is the battery pack. When this fault light is on, in most cases, the vehicle's high voltage is disconnected, and the vehicle cannot drive. In a few cases, the vehicle can drive slowly but cannot accelerate.

[VonEmilio]

Last year when I was driving my new energy vehicle, I encountered a situation where the powertrain warning light stayed on constantly, which was quite nerve-wracking. The potential issues mainly focus on the three-electric system: voltage imbalance among individual cells or abnormal temperatures within the battery pack can trigger an alarm when detected by the control module; overload or poor contact in the drive motor controller wiring can also activate the warning light; loose connections in high-voltage wiring harness connectors are among the most common causes—I once found the light came on after washing my car because a plug wasn't securely fastened. It could also be a false alarm caused by a software system bug in the vehicle. In such cases, it's advisable to first find a safe spot to pull over and restart the vehicle—like I did, pulling over to the roadside and restarting twice made the light go off. If that doesn't work, don't push your luck; contact after-sales service for assistance immediately, especially since it involves the high-voltage system, and tampering with it yourself poses risks.

[CassandraMarie]

As an enthusiast who often helps friends troubleshoot new energy vehicles, I've found that a constantly illuminated powertrain malfunction light can range from minor to serious. Simply put, it could be the battery management system (BMS) detecting excessive temperature or abnormal voltage in a battery module, much like how a swollen phone battery triggers warnings. It might also indicate the motor controller's overheating protection has activated, especially common during summer when climbing hills with AC on. Another possibility is insufficient charge in the 12V auxiliary battery affecting the vehicle control unit. Last time my neighbor encountered this, I had them check the terminal connections of the small battery in the trunk – sure enough, they were loose. Remember not to panic and keep driving; pull over safely first, check for other warning lights on the dashboard, then decide whether to call roadside assistance.

[DeLondyn]

New energy vehicle owners dread nothing more than the power failure warning light staying on while the car refuses to move – I know this frustration all too well. The root cause typically lies in the three-electric system: either excessive voltage variation among individual battery cells within the pack, overheating due to poor coolant circulation in the motor, or short circuits in the charging system. Last month, my cousin's car had this exact issue – the repair shop's diagnostic tool identified a faulty battery cooling pump, which was resolved with a minor part replacement. Regular maintenance tips: avoid waiting until the battery is completely drained to recharge, as deep discharges damage battery health. If the warning light appears accompanied by noticeable power loss or unusual noises, immediately shut off the engine and call for a tow truck – continued driving could exacerbate the problem.