Modern vehicles are equipped with computers that help them function properly. This complex system consists of wires and software that support the controller area network (CAN). More specifically, the CAN connects a variety of electronic control units (ECUs) that regulate the functions of different parts and communicate with one another. Understanding how this complex system works can alert you to see a technician who specializes in auto computer repairs when problems arise. Here’s what you should know.

How Does the CAN Work?

One of the easiest ways to understand the CAN is to imagine it as an intricate network of roads that runs through your vehicle. On these “roads” are the ECUs that provide information about different parts of the car and facilitate specific actions. For example, one ECU may connect to the computer to roll the windows up and down, while another may be responsible for locking and unlocking the doors.

Each ECU is equipped with an independent module of switches and sensors designed to identify fluctuations and respond accordingly. For example, depending on the needs of the component they connect to, the switches and sensors can detect temperature changes and variances in pressure. When one ECU needs to communicate with another, it uses the CAN to make that connection.

What Types of Problems Can Occur?

While it’s an intuitive system, the CAN is not immune to faults. A common issue is a breakdown in communication between ECUs, which can happen if a connector somewhere within the CAN becomes disconnected or corroded. Wires can also short-circuit or break entirely. If the car’s battery fails, an ECU module can lose its settings, which requires an auto computer repair professional to reset it.

Mechanics use sophisticated scanning tools to identify these problems and perform the appropriate auto computer repairs based on that information. While the resolution may involve checking and fixing the voltage or connector in some situations, in other cases, you may need to replace the ECU.

When problems develop with your car’s computer system, contact AutoTech Transmissions in Phoenix, AZ. These skilled mechanics specialize in auto computer repairs. They’re trained to read complex codes and provide effective solutions based on that information. Visit the website to learn more about their services, and call (480) 256-8866 to schedule an appointment.