···
Log in / Register

What happens if the gateway control module is broken?

4 Answers
VonKaden
09/07/25 5:42am

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.

Was this review help?
18
0
Share
FranciscoAnn
09/19/25 4:57am

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.

Was this review help?
17
1
Share
Expand All
DelKinsley
11/02/25 5:21am

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.

Was this review help?
16
1
Share
Expand All
DelClara
12/16/25 5:24am

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.

Was this review help?
20
3
Share
Expand All
More Forum Discussions

What is the fuel consumption per 100 kilometers for a 5.0L engine?

5.0L engine's fuel consumption per 100 kilometers mainly includes the following aspects: 1. When driving on urban roads, the fuel consumption of a 5.0L engine is approximately between 18-20L per 100 kilometers. 2. When driving on highways, the fuel consumption of a 5.0L engine is approximately between 11-13L per 100 kilometers. Additional information: 1. Generally, fuel consumption cannot be simply judged by engine displacement. Road conditions are the most important factor, followed by driving habits, load conditions, vehicle weight, engine and transmission specifications, and other aspects. 2. The fuel consumption displayed on the dashboard is not the actual fuel consumption and is often lower than the real value. Car owners can use fuel consumption calculation software, which generally only requires inputting the refueling amount and driving mileage to calculate the car's fuel consumption. Some software also has fuel consumption records, which can show the recent fluctuations in fuel consumption.
17
0
Share

Where is the vehicle longitudinal acceleration sensor located?

Longitudinal acceleration sensors typically do not have a fixed position. In most vehicle models, they are installed near the front of the vehicle's center of gravity. Of course, a single vehicle may have multiple longitudinal acceleration sensors, such as on the wheels or B-pillars. Their function is to detect the phenomenon of vehicle lift or dive during acceleration or braking, in order to control the adjustment of ADS damping force on the front and rear axles, thereby providing optimal ride comfort. Below is the working principle of acceleration sensors: 1. The sensing element converts the acceleration signal at the measurement point into a corresponding electrical signal, which enters the preamplifier circuit. After signal conditioning to improve the signal-to-noise ratio, it undergoes analog-to-digital conversion to obtain a digital signal, which is then sent to a computer for data storage and display. 2. Automotive acceleration sensors operate on the principle that an object's inertial coefficient generates varying pressures under different accelerations, using different resistances to distinguish between different acceleration levels. Vehicle body acceleration sensors are primarily used in ABS systems and airbags.
17
5
Share

Why Does the Car Fuel Gauge Needle Not Move?

The fuel gauge needle not moving is usually due to a damaged fuel float. It is recommended to go to a repair shop to connect the two wires of the fuel float. If the fuel gauge needle reaches the top, it means the fuel float is damaged. If it still doesn't move, check the wiring and the instrument panel. If the needle doesn't move right after filling up the tank, it's because the fuel float is pushed to the top of the tank by the buoyancy of the fuel, and the sensor-connected needle won't move. Only after consuming some fuel and the float descends will the needle move with the sensor. Below is an introduction to car instruments: 1. Car instruments consist of various gauges, indicators, and especially warning lights and alarms, providing the driver with necessary vehicle operation parameters. According to their working principles, car instruments can be roughly divided into three generations. The first generation is mechanical gauge movements; the second generation is called electrical instruments; the third generation is fully digital car instruments, which are networked and intelligent, with more powerful functions, richer display content, and simpler wiring connections. 2. The car fuel gauge mainly displays the amount of gasoline in the fuel tank. This gauge usually doesn't have issues. It's worth noting that when the fuel gauge needle is below the minimum red line, the car can still travel 30-40 kilometers, but it is still recommended not to wait until the needle reaches the bottom or the fuel warning light comes on before refueling, as cars use electric fuel pumps.
8
5
Share

Where is the cabin air filter located in a Volvo S80?

Volvo S80's cabin air filter is located under the glove compartment on the passenger side. The replacement method for Volvo S80's cabin air filter is: 1. Remove the screws of the cover panel under the glove compartment; 2. Take off the cover panel and filter cover to replace. The Volvo S80 has body dimensions of 4991mm in length, 1861mm in width, and 1490mm in height, with a wheelbase of 2976mm. The Volvo S80 features MacPherson strut independent front suspension and multi-link independent rear suspension. It is equipped with a 2.4L naturally aspirated engine producing maximum power of 170PS (125kW) and peak torque of 225Nm, mated to a 5-speed automatic transmission.
1
0
Share

How Many Types of Brake Pad Materials Are There?

There are five types of automotive brake pad materials: asbestos, metal, ceramic, and high-carbon (titanium) fiber. Automotive brake pads generally consist of a steel plate, an adhesive insulation layer, and a friction block. The steel plate is coated to prevent rust, and the coating process is monitored using an SMT-4 furnace temperature tracker to ensure quality by detecting temperature distribution. Below is an introduction to these five types of brake pads: 1. Asbestos material: Low cost and lightweight, widely used in trucks and construction vehicles. 2. Semi-metallic material: This is the default material for brake pads in all vehicle models upon factory release. These brake pads have a relatively low friction coefficient, typically around 0.38, and a shorter lifespan. Some manufacturers produce these pads with a higher friction coefficient, though this can lead to noise issues. 3. Metal material: Metal materials include iron and copper. One type is commonly referred to as wear-resistant iron, appearing very dark with no visible spots. Another type contains copper powder, where brass or copper metal blocks or small particles can be seen on the surface. 4. Ceramic brake pads: Moderate density, high-temperature resistance, corrosion resistance, and significantly lower noise compared to metal materials. A key feature is minimal dust production. Genuine ceramic brake pads contain aramid fibers, offering far superior lifespan and performance compared to the above-mentioned types. 5. High-carbon (titanium) fiber: Used in high-end vehicles and relatively rare in the market. Carbon (titanium) fiber is an upgraded version of ceramic pads. They are lightweight, high-strength, have a small thermal expansion coefficient, good thermal conductivity, and heat resistance. Carbon fiber provides stable friction curves, minimal thermal impact on friction surfaces, and wear resistance over 1.5 times that of standard ceramic pads.
20
1
Share

What engine is equipped in the Geely King Kong?

Geely King Kong is equipped with a 1.5L naturally aspirated engine, with a maximum horsepower of 102ps, a maximum power of 75kw, and a maximum torque of 141nm, paired with a 5-speed manual and automatic transmission. The dimensions of the Geely King Kong are: length 4342mm, width 1692mm, height 1435mm, wheelbase 2502mm, minimum ground clearance 158mm, fuel tank capacity 45L, and curb weight 1103kg. The front suspension of the Geely King Kong is a MacPherson independent suspension, and the rear suspension is a torsion beam non-independent suspension. The Geely King Kong is equipped with 185/60R15 front tires and 185/60R15 rear tires.
11
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.