
When the controller is broken, the general symptoms are that the car cannot move, or the car has no power, resulting in weak starting, difficulty in pushing the car, etc. Here is the relevant introduction: Function: The electric vehicle controller is the core control device used to control the start, operation, forward and reverse, speed, stop, and other electronic components of the electric vehicle motor. It is like the brain of the electric vehicle and is an important component of the electric vehicle. It mainly controls the speed of the motor and also has multiple protection functions, such as under-voltage protection, current limiting protection, and brake power-off. Composition: The control system of an electric vehicle motor generally consists of the motor, power converter, sensors, and electric vehicle controller. The control circuit mainly includes: the control chip and its drive system, AD sampling system, power module and its drive system, hardware protection system, position detection system, and bus support capacitor.

Last time the gateway control module in my car failed, and it caused quite a headache. All sorts of warning lights on the dashboard were flashing like a party, and the engine got stuck at the key position when starting, refusing to ignite no matter what. At first, I thought it was a dead battery or an issue with the power supply, but replacing them didn’t help. Later, I took it to the repair shop, where the diagnostic computer revealed a faulty gateway module. It was like a traffic hub going offline—systems such as ABS and airbags lost communication. Replacing the module cost over 3,000 yuan, plus half a day of programming. Driving daily with it broken wasn’t just about struggling to start; the AC and audio functions also acted up intermittently, making rainy-night drives especially nerve-wracking. Delaying repairs could lead to serious safety risks, like potential failure of emergency braking. I recommend getting it checked at the first sign of trouble—don’t procrastinate like I did. Though fixing such a small module isn’t complicated, its impact is huge.

Oh man, when my car's gateway module failed, the whole vehicle went crazy. It often got stuck at the ignition position during startup, and it took several attempts to get it going. The speedometer and fuel gauge on the dashboard turned gray, like they were blacked out. The audio and air conditioning acted up—sometimes they'd suddenly turn off, blowing hot or cold air unpredictably. I took it to the repair shop, and they said it was a gateway issue—it's responsible for connecting different components, and when it fails, communication breaks down, turning the car into a useless hunk of metal. Waiting for the replacement parts took days, forcing me to rely on buses, which was a huge hassle. Normally, driving it meant safety systems like blind-spot monitoring wouldn't work, making it easy to get into scrapes on the highway. I later found out it was caused by module aging or circuit shorts, and replacing it cost around a thousand bucks. Now that it's fixed, I make sure to regularly maintain the car's systems to prevent this from happening again.

The gateway module acts as the brain and central nervous system of a vehicle. Once it malfunctions, the CAN network communication collapses, the engine may fail to start, dashboard information disappears or displays garbled codes, and auxiliary functions like tire pressure monitoring also stop working. Common symptoms include uncontrolled air conditioning or malfunctioning remote keys. I've encountered numerous such cases during repairs. Diagnosing them requires specialized tools to test signals, and the repair process often involves replacing the module and reprogramming, which is time-consuming and costly. If not addressed promptly, it can compromise driving safety, such as ABS failure increasing accident risks. It's advisable for car owners to seek inspection immediately upon noticing any abnormalities to prevent minor issues from escalating.


