Modern cars are equipped with complex electronic systems that control the engine, transmission, suspension, and safety features. But how can you tell if something is wrong with your car if it appears to be running normally?

Computer diagnostics allow you to identify hidden issues that may not be immediately noticeable to the driver but could lead to serious breakdowns. In this article, we will look at the TOP-5 most common problems that can be detected with a diagnostic scanner.

1. Engine Malfunction Errors (Check Engine)

One of the most common reasons for visiting a car service center is the Check Engine light turning on. But what exactly does this signal mean?

With computer diagnostics, you can detect:

  • Ignition system failures (spark plugs, coils, wires).
  • Fuel system problems (clogged injectors, low fuel pressure).
  • Faulty sensors (lambda sensor, MAF, MAP, temperature sensors).
  • Exhaust gas recirculation (EGR) system malfunctions.

Why is it important to check?

If engine issues are not fixed in time, the car may lose power, consume more fuel, or even fail to start.

2. Transmission Problems

You don’t have to wait until the transmission starts “jerking” or making suspicious noises. Transmission diagnostics can help identify issues before they turn into serious problems.

What can be checked with a computer?

  • Transmission fluid overheating (which can cause component wear).
  • Automatic transmission electronic errors.
  • Torque converter and solenoid failures.
  • Clutch problems in robotic gearboxes.

Why is this important?

Timely diagnostics can help avoid a costly automatic transmission overhaul.

Комп’ютерна діагностика авто Львів

3. Ignition System and Battery Issues

If your car struggles to start or stalls unexpectedly, the issue could be with the ignition system or battery.

Diagnostics can reveal:

  • Battery charge level and condition.
  • Alternator issues (overcharging or undercharging).
  • Starter operation errors.
  • Faulty spark plugs or ignition coils.

Why should you check?

If you ignore starter or alternator issues, your car may unexpectedly fail on the road.

4. Brake System Malfunctions

Modern cars are equipped with ABS, ESP, and brake force distribution systems, which greatly enhance safety. However, if these systems are not functioning properly, your safety on the road could be at risk.

What can diagnostics detect?

  • ABS (Anti-lock Braking System) malfunctions.
  • Brake force distribution system failures.
  • Faulty wheel sensors.
  • Brake fluid leaks or low pressure in the system.

Why should you check?

If ABS or ESP systems are not working, your car may skid while braking, especially on wet or slippery roads.

5. Exhaust System Errors and Increased Emissions

The exhaust system not only affects engine performance but also fuel consumption and emission levels.

Computer diagnostics can detect:

  • Failure of the catalytic converter or diesel particulate filter.
  • Issues with the lambda sensor (oxygen sensor).
  • Excessive emissions.
  • Malfunctions in the EGR system.

Why is this important?

If the catalytic converter or sensors are not functioning properly, your car may fail an emissions test due to high pollution levels.

Why Is Computer Diagnostics Important?

  • Helps identify issues at an early stage before they become serious problems.
  • Saves money on expensive repairs.
  • Enhances the safety and reliability of your vehicle.
  • Improves fuel efficiency.

If you notice any problems with your car or just want to ensure everything is working fine – book a computer diagnostics check now!

Check your car – it’s the key to safety and longevity!