Understand the different types of car error codes and their meaning.

When your car's check engine light comes on, it can cause worry and uncertainty about what might be wrong. Before stressing over potential repairs, it's important to understand what car fault codes are and their significance.

What are car fault codes?

Car fault codes are diagnostic codes provided by a car's built-in computer to identify problems with various systems in the vehicle. These codes can be read using a fault code reader and provide information about where the problem lies, making it easier for both car owners and mechanics.

Types of car fault codes

Generic and manufacturer-specific codes

There are two main categories of fault codes:

  • Generic codes (P0): These codes are standardized and used by all car manufacturers. They cover most of the basic problems that can occur in the car's systems.
  • Manufacturer-specific codes (P1): These are specific to each manufacturer and cover problems that can only occur in their particular systems and components.

Common fault code types

  1. Engine codes (Pxxxx): These codes indicate problems related to the engine and its sensor functions.
  2. Airbag and airbag-related codes (Bxxxx): Handle problems related to the car's safety features such as airbags.
  3. Chassis codes (Cxxxx): Related to problems with the car's chassis or electronic drive system components.
  4. Communication codes (Uxxxx): Indicate problems with communication between different control modules in the vehicle.

Benefits of using a fault code reader

MaxiEcu EXPERT Fault Code Reader (Two car brands)

A fault code reader can easily diagnose these codes and help identify problems before they become serious. Here are some recommended products:

These tools help keep your car in top condition by giving you the ability to read, interpret, and resolve fault codes on your own.

For more information on car fault codes and products, visit Felkodsläsare.