The engine controller, or ECU (Engine Control Unit), is one of the key components of modern vehicles. It is responsible for controlling the engine by collecting and processing data from various sensors. Based on this information, the ECU regulates the operation of the propulsion unit, optimising the air-fuel ratio, ignition and the operation of the assistance systems, such as ABS or traction control. In practice, the engine controller acts as the ‘brain’ of the entire powertrain without which modern vehicles could not function properly. However, like any other electronic device, the engine control unit can also fail. Problems with the ECU can lead to vehicle malfunctions or even immobilisation.

The gearbox controller, also known as the gearbox control unit, is a key component of an automatic transmission, responsible for controlling the process of shifting gears. It operates together with a number of sensors and monitors the driving conditions, speed, accelerator pedal position and many other parameters to ensure smooth and optimal transmission operation. Its task is to select the right gear depending on the road conditions, which directly affects driving comfort and fuel consumption.

The ABS pump control unit is a key component of the modern vehicle safety system which prevents the wheels from locking during braking. It consists of electronic controls and is an integral part of the braking system of any modern car. Repair of such a controller may be necessary in the event of damage that can lead to malfunctioning of the ABS system.

An engine controller is a key component of any modern vehicle, responsible for controlling and optimising engine performance. It is a type of computer that receives data from various sensors deployed in the car and controls various aspects of the engine's operation, such as the air/fuel ratio (AFR), ignition and emissions, based on this data. In today’s vehicles, the engine control unit is an indispensable component for optimum performance, fuel economy and emissions reduction.

The gearbox controller, also known as the gearbox control module or transmission controller is a key component in modern vehicles fitted with automatic transmissions. It is responsible for controlling and regulating the gearshift process, which has a significant impact on the smoothness of driving and fuel efficiency. However, like any electronic device, it can fail.

The ABS pump controller is a key component of the anti-lock brake system in the car. When it becomes damaged, this can lead to serious problems with the operation of the brakes, which in turn increases the risk of an accident. Many people wonder whether it is possible to repair this component rather than replacing it with a new one. The answer is yes, repair is possible, but it comes with certain limitations.